diff --git a/apps/admin_audit/lib/IAuditLogger.php b/apps/admin_audit/lib/IAuditLogger.php
index f17afa6852e5b..635c063753fdc 100644
--- a/apps/admin_audit/lib/IAuditLogger.php
+++ b/apps/admin_audit/lib/IAuditLogger.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/cloud_federation_api/lib/Config.php b/apps/cloud_federation_api/lib/Config.php
index cb3f4a2ae76fe..8fffda7619e0e 100644
--- a/apps/cloud_federation_api/lib/Config.php
+++ b/apps/cloud_federation_api/lib/Config.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/cloud_federation_api/lib/Controller/RequestHandlerController.php b/apps/cloud_federation_api/lib/Controller/RequestHandlerController.php
index 4cd668c29a063..df8a6367fcb6c 100644
--- a/apps/cloud_federation_api/lib/Controller/RequestHandlerController.php
+++ b/apps/cloud_federation_api/lib/Controller/RequestHandlerController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/appinfo/routes.php b/apps/comments/appinfo/routes.php
index 903f1b2168c99..3c44eacda9447 100644
--- a/apps/comments/appinfo/routes.php
+++ b/apps/comments/appinfo/routes.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/comments/lib/Activity/Filter.php b/apps/comments/lib/Activity/Filter.php
index 6f010d855cbcf..58777c3b03c2f 100644
--- a/apps/comments/lib/Activity/Filter.php
+++ b/apps/comments/lib/Activity/Filter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/lib/Activity/Listener.php b/apps/comments/lib/Activity/Listener.php
index b07cb19afdab2..02815eafe1ea1 100644
--- a/apps/comments/lib/Activity/Listener.php
+++ b/apps/comments/lib/Activity/Listener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/comments/lib/Activity/Provider.php b/apps/comments/lib/Activity/Provider.php
index f2fa84adc17df..8b57f40900809 100644
--- a/apps/comments/lib/Activity/Provider.php
+++ b/apps/comments/lib/Activity/Provider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/lib/Activity/Setting.php b/apps/comments/lib/Activity/Setting.php
index 9315aedc10441..30ade95e5170b 100644
--- a/apps/comments/lib/Activity/Setting.php
+++ b/apps/comments/lib/Activity/Setting.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/lib/AppInfo/Application.php b/apps/comments/lib/AppInfo/Application.php
index f0a7b063c9aee..9d1132f5ce5d2 100644
--- a/apps/comments/lib/AppInfo/Application.php
+++ b/apps/comments/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/lib/Collaboration/CommentersSorter.php b/apps/comments/lib/Collaboration/CommentersSorter.php
index 46fec87c7770a..4be13f3ce4057 100644
--- a/apps/comments/lib/Collaboration/CommentersSorter.php
+++ b/apps/comments/lib/Collaboration/CommentersSorter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/lib/Controller/NotificationsController.php b/apps/comments/lib/Controller/NotificationsController.php
index 2dc94b2e66367..d97b99b24cdfb 100644
--- a/apps/comments/lib/Controller/NotificationsController.php
+++ b/apps/comments/lib/Controller/NotificationsController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/lib/Notification/Listener.php b/apps/comments/lib/Notification/Listener.php
index 43922f85e59c4..4f8a9eedab0d7 100644
--- a/apps/comments/lib/Notification/Listener.php
+++ b/apps/comments/lib/Notification/Listener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/comments/lib/Notification/Notifier.php b/apps/comments/lib/Notification/Notifier.php
index 62562bf42aaca..7147d84d8c961 100644
--- a/apps/comments/lib/Notification/Notifier.php
+++ b/apps/comments/lib/Notification/Notifier.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/comments/lib/Search/Result.php b/apps/comments/lib/Search/Result.php
index 2f2c675c3c154..ed6cf5ab8add4 100644
--- a/apps/comments/lib/Search/Result.php
+++ b/apps/comments/lib/Search/Result.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/tests/Unit/Activity/ListenerTest.php b/apps/comments/tests/Unit/Activity/ListenerTest.php
index 19dcae4c8abb4..ffdb022dd6cd0 100644
--- a/apps/comments/tests/Unit/Activity/ListenerTest.php
+++ b/apps/comments/tests/Unit/Activity/ListenerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/tests/Unit/AppInfo/ApplicationTest.php b/apps/comments/tests/Unit/AppInfo/ApplicationTest.php
index 4b87982ab4511..c08b87be5391c 100644
--- a/apps/comments/tests/Unit/AppInfo/ApplicationTest.php
+++ b/apps/comments/tests/Unit/AppInfo/ApplicationTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/comments/tests/Unit/Collaboration/CommentersSorterTest.php b/apps/comments/tests/Unit/Collaboration/CommentersSorterTest.php
index c0de0016c314e..880b51ef2db1a 100644
--- a/apps/comments/tests/Unit/Collaboration/CommentersSorterTest.php
+++ b/apps/comments/tests/Unit/Collaboration/CommentersSorterTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/tests/Unit/Controller/NotificationsTest.php b/apps/comments/tests/Unit/Controller/NotificationsTest.php
index ccd808895c82e..54bfd007c4b84 100644
--- a/apps/comments/tests/Unit/Controller/NotificationsTest.php
+++ b/apps/comments/tests/Unit/Controller/NotificationsTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/comments/tests/Unit/EventHandlerTest.php b/apps/comments/tests/Unit/EventHandlerTest.php
index 83ce1af57da49..294217011c622 100644
--- a/apps/comments/tests/Unit/EventHandlerTest.php
+++ b/apps/comments/tests/Unit/EventHandlerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/comments/tests/Unit/Notification/ListenerTest.php b/apps/comments/tests/Unit/Notification/ListenerTest.php
index a9175b7e203d2..c016389095b82 100644
--- a/apps/comments/tests/Unit/Notification/ListenerTest.php
+++ b/apps/comments/tests/Unit/Notification/ListenerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/comments/tests/Unit/Notification/NotifierTest.php b/apps/comments/tests/Unit/Notification/NotifierTest.php
index 87b87e646afbd..d3d5d9d423f9b 100644
--- a/apps/comments/tests/Unit/Notification/NotifierTest.php
+++ b/apps/comments/tests/Unit/Notification/NotifierTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dashboard/templates/index.php b/apps/dashboard/templates/index.php
index 53222710b987e..dd529b3b89f54 100644
--- a/apps/dashboard/templates/index.php
+++ b/apps/dashboard/templates/index.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/appinfo/routes.php b/apps/dav/appinfo/routes.php
index 91c1ba58ea2f4..705ccf18943a0 100644
--- a/apps/dav/appinfo/routes.php
+++ b/apps/dav/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/appinfo/v1/caldav.php b/apps/dav/appinfo/v1/caldav.php
index ea6d2dcf40606..139c2969d0ffb 100644
--- a/apps/dav/appinfo/v1/caldav.php
+++ b/apps/dav/appinfo/v1/caldav.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/appinfo/v1/carddav.php b/apps/dav/appinfo/v1/carddav.php
index dbcdacc27f0f6..d74b12cb1a4ec 100644
--- a/apps/dav/appinfo/v1/carddav.php
+++ b/apps/dav/appinfo/v1/carddav.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/appinfo/v1/publicwebdav.php b/apps/dav/appinfo/v1/publicwebdav.php
index dc74fe214afbb..64739af363f44 100644
--- a/apps/dav/appinfo/v1/publicwebdav.php
+++ b/apps/dav/appinfo/v1/publicwebdav.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/appinfo/v1/webdav.php b/apps/dav/appinfo/v1/webdav.php
index 0faed7ccc947f..026cc9235a442 100644
--- a/apps/dav/appinfo/v1/webdav.php
+++ b/apps/dav/appinfo/v1/webdav.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/appinfo/v2/publicremote.php b/apps/dav/appinfo/v2/publicremote.php
index 91d5a0448eba1..8f3c854d35867 100644
--- a/apps/dav/appinfo/v2/publicremote.php
+++ b/apps/dav/appinfo/v2/publicremote.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/appinfo/v2/remote.php b/apps/dav/appinfo/v2/remote.php
index 28cfe338a9361..f539005ff6f9c 100644
--- a/apps/dav/appinfo/v2/remote.php
+++ b/apps/dav/appinfo/v2/remote.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use OCA\DAV\Server;
 
 /**
diff --git a/apps/dav/lib/Avatars/AvatarHome.php b/apps/dav/lib/Avatars/AvatarHome.php
index c3b95db1f4f99..905a612ac380d 100644
--- a/apps/dav/lib/Avatars/AvatarHome.php
+++ b/apps/dav/lib/Avatars/AvatarHome.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2017 ownCloud GmbH
diff --git a/apps/dav/lib/Avatars/AvatarNode.php b/apps/dav/lib/Avatars/AvatarNode.php
index b3a605fbb02be..bd40f6d0cd6bb 100644
--- a/apps/dav/lib/Avatars/AvatarNode.php
+++ b/apps/dav/lib/Avatars/AvatarNode.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2017 ownCloud GmbH
diff --git a/apps/dav/lib/Avatars/RootCollection.php b/apps/dav/lib/Avatars/RootCollection.php
index d7cdb92c6be7d..1bd18ceb36d96 100644
--- a/apps/dav/lib/Avatars/RootCollection.php
+++ b/apps/dav/lib/Avatars/RootCollection.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2017 ownCloud GmbH
diff --git a/apps/dav/lib/BulkUpload/BulkUploadPlugin.php b/apps/dav/lib/BulkUpload/BulkUploadPlugin.php
index 137bad34bf5ca..ef0bc2a41ab58 100644
--- a/apps/dav/lib/BulkUpload/BulkUploadPlugin.php
+++ b/apps/dav/lib/BulkUpload/BulkUploadPlugin.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\BulkUpload;
 
 use OCA\DAV\Connector\Sabre\MtimeSanitizer;
diff --git a/apps/dav/lib/BulkUpload/MultipartRequestParser.php b/apps/dav/lib/BulkUpload/MultipartRequestParser.php
index 107c67ea691b6..72abe4911c535 100644
--- a/apps/dav/lib/BulkUpload/MultipartRequestParser.php
+++ b/apps/dav/lib/BulkUpload/MultipartRequestParser.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\BulkUpload;
 
 use OCP\AppFramework\Http;
diff --git a/apps/dav/lib/CalDAV/Activity/Backend.php b/apps/dav/lib/CalDAV/Activity/Backend.php
index 5ae71f4ecc63a..ed195cda614f9 100644
--- a/apps/dav/lib/CalDAV/Activity/Backend.php
+++ b/apps/dav/lib/CalDAV/Activity/Backend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Filter/Calendar.php b/apps/dav/lib/CalDAV/Activity/Filter/Calendar.php
index 7411202044d73..064cbbf39c1d3 100644
--- a/apps/dav/lib/CalDAV/Activity/Filter/Calendar.php
+++ b/apps/dav/lib/CalDAV/Activity/Filter/Calendar.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Filter/Todo.php b/apps/dav/lib/CalDAV/Activity/Filter/Todo.php
index 6bc7bd4b30849..3c2dd935203b0 100644
--- a/apps/dav/lib/CalDAV/Activity/Filter/Todo.php
+++ b/apps/dav/lib/CalDAV/Activity/Filter/Todo.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Provider/Base.php b/apps/dav/lib/CalDAV/Activity/Provider/Base.php
index 43d80b4bb6aca..35c5de28bed9d 100644
--- a/apps/dav/lib/CalDAV/Activity/Provider/Base.php
+++ b/apps/dav/lib/CalDAV/Activity/Provider/Base.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Provider/Calendar.php b/apps/dav/lib/CalDAV/Activity/Provider/Calendar.php
index 898eb2b5cb6f1..2e4ef68a00089 100644
--- a/apps/dav/lib/CalDAV/Activity/Provider/Calendar.php
+++ b/apps/dav/lib/CalDAV/Activity/Provider/Calendar.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Provider/Event.php b/apps/dav/lib/CalDAV/Activity/Provider/Event.php
index d3cfd00b74295..de5cffd3830f4 100644
--- a/apps/dav/lib/CalDAV/Activity/Provider/Event.php
+++ b/apps/dav/lib/CalDAV/Activity/Provider/Event.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Provider/Todo.php b/apps/dav/lib/CalDAV/Activity/Provider/Todo.php
index 1e817663439ba..ae4b01262c1e3 100644
--- a/apps/dav/lib/CalDAV/Activity/Provider/Todo.php
+++ b/apps/dav/lib/CalDAV/Activity/Provider/Todo.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Setting/Calendar.php b/apps/dav/lib/CalDAV/Activity/Setting/Calendar.php
index a201213f784bc..8e777048027f4 100644
--- a/apps/dav/lib/CalDAV/Activity/Setting/Calendar.php
+++ b/apps/dav/lib/CalDAV/Activity/Setting/Calendar.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Setting/Event.php b/apps/dav/lib/CalDAV/Activity/Setting/Event.php
index ea0497382512d..c10d37d890264 100644
--- a/apps/dav/lib/CalDAV/Activity/Setting/Event.php
+++ b/apps/dav/lib/CalDAV/Activity/Setting/Event.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Activity/Setting/Todo.php b/apps/dav/lib/CalDAV/Activity/Setting/Todo.php
index 7ac3b1e0f76e0..39bcd440112ff 100644
--- a/apps/dav/lib/CalDAV/Activity/Setting/Todo.php
+++ b/apps/dav/lib/CalDAV/Activity/Setting/Todo.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/BirthdayCalendar/EnablePlugin.php b/apps/dav/lib/CalDAV/BirthdayCalendar/EnablePlugin.php
index b323673969bb2..7434befb90d14 100644
--- a/apps/dav/lib/CalDAV/BirthdayCalendar/EnablePlugin.php
+++ b/apps/dav/lib/CalDAV/BirthdayCalendar/EnablePlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/CalDavBackend.php b/apps/dav/lib/CalDAV/CalDavBackend.php
index c9d323d27df31..fdff94c995e7e 100644
--- a/apps/dav/lib/CalDAV/CalDavBackend.php
+++ b/apps/dav/lib/CalDAV/CalDavBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CalDAV/Calendar.php b/apps/dav/lib/CalDAV/Calendar.php
index 6fd7d1471315c..d9a7ed318f058 100644
--- a/apps/dav/lib/CalDAV/Calendar.php
+++ b/apps/dav/lib/CalDAV/Calendar.php
@@ -1,5 +1,6 @@
 <?php
 
+declare(strict_types=1);
 
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
diff --git a/apps/dav/lib/CalDAV/CalendarHome.php b/apps/dav/lib/CalDAV/CalendarHome.php
index c74c07bc4ab15..d0b76b171b3a6 100644
--- a/apps/dav/lib/CalDAV/CalendarHome.php
+++ b/apps/dav/lib/CalDAV/CalendarHome.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CalDAV/CalendarManager.php b/apps/dav/lib/CalDAV/CalendarManager.php
index 1baf53ee457c9..3393cb985f372 100644
--- a/apps/dav/lib/CalDAV/CalendarManager.php
+++ b/apps/dav/lib/CalDAV/CalendarManager.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/CalendarObject.php b/apps/dav/lib/CalDAV/CalendarObject.php
index 90a1e97ec4d03..40ca37ea351c6 100644
--- a/apps/dav/lib/CalDAV/CalendarObject.php
+++ b/apps/dav/lib/CalDAV/CalendarObject.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CalDAV/CalendarRoot.php b/apps/dav/lib/CalDAV/CalendarRoot.php
index bfe5f84ce31ac..f6b1ffe4a1514 100644
--- a/apps/dav/lib/CalDAV/CalendarRoot.php
+++ b/apps/dav/lib/CalDAV/CalendarRoot.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CalDAV/ICSExportPlugin/ICSExportPlugin.php b/apps/dav/lib/CalDAV/ICSExportPlugin/ICSExportPlugin.php
index 3f71b1db24c70..3695230fa6aa2 100644
--- a/apps/dav/lib/CalDAV/ICSExportPlugin/ICSExportPlugin.php
+++ b/apps/dav/lib/CalDAV/ICSExportPlugin/ICSExportPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Integration/ExternalCalendar.php b/apps/dav/lib/CalDAV/Integration/ExternalCalendar.php
index 6e755716397b2..edacdd42ea78f 100644
--- a/apps/dav/lib/CalDAV/Integration/ExternalCalendar.php
+++ b/apps/dav/lib/CalDAV/Integration/ExternalCalendar.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Integration/ICalendarProvider.php b/apps/dav/lib/CalDAV/Integration/ICalendarProvider.php
index bbee4cbda7c96..d913b91f1f0ef 100644
--- a/apps/dav/lib/CalDAV/Integration/ICalendarProvider.php
+++ b/apps/dav/lib/CalDAV/Integration/ICalendarProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/InvitationResponse/InvitationResponseServer.php b/apps/dav/lib/CalDAV/InvitationResponse/InvitationResponseServer.php
index 32a3eb0ae158a..c5937906bfbd8 100644
--- a/apps/dav/lib/CalDAV/InvitationResponse/InvitationResponseServer.php
+++ b/apps/dav/lib/CalDAV/InvitationResponse/InvitationResponseServer.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Outbox.php b/apps/dav/lib/CalDAV/Outbox.php
index fc9dc87a5742d..a2339790bed08 100644
--- a/apps/dav/lib/CalDAV/Outbox.php
+++ b/apps/dav/lib/CalDAV/Outbox.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Plugin.php b/apps/dav/lib/CalDAV/Plugin.php
index 24448ae71ab3c..dfbfe11624989 100644
--- a/apps/dav/lib/CalDAV/Plugin.php
+++ b/apps/dav/lib/CalDAV/Plugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
diff --git a/apps/dav/lib/CalDAV/Principal/Collection.php b/apps/dav/lib/CalDAV/Principal/Collection.php
index f2cea0b513644..57d7e0b584354 100644
--- a/apps/dav/lib/CalDAV/Principal/Collection.php
+++ b/apps/dav/lib/CalDAV/Principal/Collection.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Principal/User.php b/apps/dav/lib/CalDAV/Principal/User.php
index 60b7953ea6293..c7b84e6ce4c7f 100644
--- a/apps/dav/lib/CalDAV/Principal/User.php
+++ b/apps/dav/lib/CalDAV/Principal/User.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/PublicCalendar.php b/apps/dav/lib/CalDAV/PublicCalendar.php
index 4ee811efeaeac..c5520964dc5e2 100644
--- a/apps/dav/lib/CalDAV/PublicCalendar.php
+++ b/apps/dav/lib/CalDAV/PublicCalendar.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/PublicCalendarObject.php b/apps/dav/lib/CalDAV/PublicCalendarObject.php
index c3dc5ab1843e3..a05b09b0deb5f 100644
--- a/apps/dav/lib/CalDAV/PublicCalendarObject.php
+++ b/apps/dav/lib/CalDAV/PublicCalendarObject.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/PublicCalendarRoot.php b/apps/dav/lib/CalDAV/PublicCalendarRoot.php
index edfb9f8dcccad..5146bc7da8cb7 100644
--- a/apps/dav/lib/CalDAV/PublicCalendarRoot.php
+++ b/apps/dav/lib/CalDAV/PublicCalendarRoot.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CalDAV/Publishing/PublishPlugin.php b/apps/dav/lib/CalDAV/Publishing/PublishPlugin.php
index 1916187af2b31..9cd347a129cd5 100644
--- a/apps/dav/lib/CalDAV/Publishing/PublishPlugin.php
+++ b/apps/dav/lib/CalDAV/Publishing/PublishPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Publishing/Xml/Publisher.php b/apps/dav/lib/CalDAV/Publishing/Xml/Publisher.php
index 2fd55a126437b..c0573c7fe03ac 100644
--- a/apps/dav/lib/CalDAV/Publishing/Xml/Publisher.php
+++ b/apps/dav/lib/CalDAV/Publishing/Xml/Publisher.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/ResourceBooking/AbstractPrincipalBackend.php b/apps/dav/lib/CalDAV/ResourceBooking/AbstractPrincipalBackend.php
index e1bd2f5be2998..2edc14520a6a3 100644
--- a/apps/dav/lib/CalDAV/ResourceBooking/AbstractPrincipalBackend.php
+++ b/apps/dav/lib/CalDAV/ResourceBooking/AbstractPrincipalBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/ResourceBooking/ResourcePrincipalBackend.php b/apps/dav/lib/CalDAV/ResourceBooking/ResourcePrincipalBackend.php
index 40396f67ce93c..adeb8939c887d 100644
--- a/apps/dav/lib/CalDAV/ResourceBooking/ResourcePrincipalBackend.php
+++ b/apps/dav/lib/CalDAV/ResourceBooking/ResourcePrincipalBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/ResourceBooking/RoomPrincipalBackend.php b/apps/dav/lib/CalDAV/ResourceBooking/RoomPrincipalBackend.php
index 91cf78c296f72..1cc8770739fae 100644
--- a/apps/dav/lib/CalDAV/ResourceBooking/RoomPrincipalBackend.php
+++ b/apps/dav/lib/CalDAV/ResourceBooking/RoomPrincipalBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php b/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
index f88625b551b49..06eb7bcfc3955 100644
--- a/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
+++ b/apps/dav/lib/CalDAV/Schedule/IMipPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CalDAV/Schedule/Plugin.php b/apps/dav/lib/CalDAV/Schedule/Plugin.php
index eebfe2ead493d..114ca1ad07e40 100644
--- a/apps/dav/lib/CalDAV/Schedule/Plugin.php
+++ b/apps/dav/lib/CalDAV/Schedule/Plugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Search/SearchPlugin.php b/apps/dav/lib/CalDAV/Search/SearchPlugin.php
index c69537523f299..f2f7e7b8a9839 100644
--- a/apps/dav/lib/CalDAV/Search/SearchPlugin.php
+++ b/apps/dav/lib/CalDAV/Search/SearchPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Search/Xml/Filter/CompFilter.php b/apps/dav/lib/CalDAV/Search/Xml/Filter/CompFilter.php
index 8a13086584246..a95470a8b47df 100644
--- a/apps/dav/lib/CalDAV/Search/Xml/Filter/CompFilter.php
+++ b/apps/dav/lib/CalDAV/Search/Xml/Filter/CompFilter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Search/Xml/Filter/LimitFilter.php b/apps/dav/lib/CalDAV/Search/Xml/Filter/LimitFilter.php
index 943e657903e56..7c56a50cdd9f2 100644
--- a/apps/dav/lib/CalDAV/Search/Xml/Filter/LimitFilter.php
+++ b/apps/dav/lib/CalDAV/Search/Xml/Filter/LimitFilter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Search/Xml/Filter/OffsetFilter.php b/apps/dav/lib/CalDAV/Search/Xml/Filter/OffsetFilter.php
index 439a795dde91b..8e06b722c0392 100644
--- a/apps/dav/lib/CalDAV/Search/Xml/Filter/OffsetFilter.php
+++ b/apps/dav/lib/CalDAV/Search/Xml/Filter/OffsetFilter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Search/Xml/Filter/ParamFilter.php b/apps/dav/lib/CalDAV/Search/Xml/Filter/ParamFilter.php
index 3b03b63e9093a..057e337d0d315 100644
--- a/apps/dav/lib/CalDAV/Search/Xml/Filter/ParamFilter.php
+++ b/apps/dav/lib/CalDAV/Search/Xml/Filter/ParamFilter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Search/Xml/Filter/PropFilter.php b/apps/dav/lib/CalDAV/Search/Xml/Filter/PropFilter.php
index 42ecf630f440f..3ff265e80f5ad 100644
--- a/apps/dav/lib/CalDAV/Search/Xml/Filter/PropFilter.php
+++ b/apps/dav/lib/CalDAV/Search/Xml/Filter/PropFilter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Search/Xml/Filter/SearchTermFilter.php b/apps/dav/lib/CalDAV/Search/Xml/Filter/SearchTermFilter.php
index b10cf3140cf2a..9445158f3dbdc 100644
--- a/apps/dav/lib/CalDAV/Search/Xml/Filter/SearchTermFilter.php
+++ b/apps/dav/lib/CalDAV/Search/Xml/Filter/SearchTermFilter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CalDAV/Search/Xml/Request/CalendarSearchReport.php b/apps/dav/lib/CalDAV/Search/Xml/Request/CalendarSearchReport.php
index 639d0b3265561..01f422764736e 100644
--- a/apps/dav/lib/CalDAV/Search/Xml/Request/CalendarSearchReport.php
+++ b/apps/dav/lib/CalDAV/Search/Xml/Request/CalendarSearchReport.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Capabilities.php b/apps/dav/lib/Capabilities.php
index b0f63f80f2daf..e88d6c7e545c0 100644
--- a/apps/dav/lib/Capabilities.php
+++ b/apps/dav/lib/Capabilities.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/dav/lib/CardDAV/Activity/Filter.php b/apps/dav/lib/CardDAV/Activity/Filter.php
index 8934c455def03..7724fb59c163d 100644
--- a/apps/dav/lib/CardDAV/Activity/Filter.php
+++ b/apps/dav/lib/CardDAV/Activity/Filter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CardDAV/AddressBook.php b/apps/dav/lib/CardDAV/AddressBook.php
index 2ec645f04d231..1c4426ba0482a 100644
--- a/apps/dav/lib/CardDAV/AddressBook.php
+++ b/apps/dav/lib/CardDAV/AddressBook.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CardDAV/AddressBookImpl.php b/apps/dav/lib/CardDAV/AddressBookImpl.php
index e37281e92eb28..f04525c15005e 100644
--- a/apps/dav/lib/CardDAV/AddressBookImpl.php
+++ b/apps/dav/lib/CardDAV/AddressBookImpl.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CardDAV/AddressBookRoot.php b/apps/dav/lib/CardDAV/AddressBookRoot.php
index 5679a03545eb3..acbc350af6c8f 100644
--- a/apps/dav/lib/CardDAV/AddressBookRoot.php
+++ b/apps/dav/lib/CardDAV/AddressBookRoot.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CardDAV/CardDavBackend.php b/apps/dav/lib/CardDAV/CardDavBackend.php
index f7d0a888efd79..c29d69284239c 100644
--- a/apps/dav/lib/CardDAV/CardDavBackend.php
+++ b/apps/dav/lib/CardDAV/CardDavBackend.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CardDAV/ContactsManager.php b/apps/dav/lib/CardDAV/ContactsManager.php
index 39e4e6aa1174f..d40cdaa8ced3c 100644
--- a/apps/dav/lib/CardDAV/ContactsManager.php
+++ b/apps/dav/lib/CardDAV/ContactsManager.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CardDAV/Converter.php b/apps/dav/lib/CardDAV/Converter.php
index 64c1cfa66d5e8..16752dc84e970 100644
--- a/apps/dav/lib/CardDAV/Converter.php
+++ b/apps/dav/lib/CardDAV/Converter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CardDAV/ImageExportPlugin.php b/apps/dav/lib/CardDAV/ImageExportPlugin.php
index e9d390d0849d9..da1fa9285e38d 100644
--- a/apps/dav/lib/CardDAV/ImageExportPlugin.php
+++ b/apps/dav/lib/CardDAV/ImageExportPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CardDAV/PhotoCache.php b/apps/dav/lib/CardDAV/PhotoCache.php
index 7f9579a377f55..2a3fdfa6ae5ad 100644
--- a/apps/dav/lib/CardDAV/PhotoCache.php
+++ b/apps/dav/lib/CardDAV/PhotoCache.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/CardDAV/Plugin.php b/apps/dav/lib/CardDAV/Plugin.php
index 0ec10306cebb5..8730e4664f325 100644
--- a/apps/dav/lib/CardDAV/Plugin.php
+++ b/apps/dav/lib/CardDAV/Plugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/CardDAV/SyncService.php b/apps/dav/lib/CardDAV/SyncService.php
index 4e8c4b1355e9a..50b385a348c70 100644
--- a/apps/dav/lib/CardDAV/SyncService.php
+++ b/apps/dav/lib/CardDAV/SyncService.php
@@ -1,5 +1,6 @@
 <?php
 
+declare(strict_types=1);
 
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
diff --git a/apps/dav/lib/CardDAV/Xml/Groups.php b/apps/dav/lib/CardDAV/Xml/Groups.php
index 07aeecb3fa255..56224b77fe3bc 100644
--- a/apps/dav/lib/CardDAV/Xml/Groups.php
+++ b/apps/dav/lib/CardDAV/Xml/Groups.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Command/CreateAddressBook.php b/apps/dav/lib/Command/CreateAddressBook.php
index 9626edeba260a..824ed78270c39 100644
--- a/apps/dav/lib/Command/CreateAddressBook.php
+++ b/apps/dav/lib/Command/CreateAddressBook.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Command/CreateCalendar.php b/apps/dav/lib/Command/CreateCalendar.php
index 5339d9d1c79f5..b9adb4a84ae16 100644
--- a/apps/dav/lib/Command/CreateCalendar.php
+++ b/apps/dav/lib/Command/CreateCalendar.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Command/ListCalendars.php b/apps/dav/lib/Command/ListCalendars.php
index 06a1f7397c409..ff9b7cf0f1b4f 100644
--- a/apps/dav/lib/Command/ListCalendars.php
+++ b/apps/dav/lib/Command/ListCalendars.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Command/MoveCalendar.php b/apps/dav/lib/Command/MoveCalendar.php
index 36f20e5b54789..4307583857e8c 100644
--- a/apps/dav/lib/Command/MoveCalendar.php
+++ b/apps/dav/lib/Command/MoveCalendar.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Command/SendEventReminders.php b/apps/dav/lib/Command/SendEventReminders.php
index f5afb30ed7076..6fff7d62f1f21 100644
--- a/apps/dav/lib/Command/SendEventReminders.php
+++ b/apps/dav/lib/Command/SendEventReminders.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Command/SyncBirthdayCalendar.php b/apps/dav/lib/Command/SyncBirthdayCalendar.php
index db1ebb6ecb5f5..9bfbdcf64de5c 100644
--- a/apps/dav/lib/Command/SyncBirthdayCalendar.php
+++ b/apps/dav/lib/Command/SyncBirthdayCalendar.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Command/SyncSystemAddressBook.php b/apps/dav/lib/Command/SyncSystemAddressBook.php
index 54edba01e0593..b8b7f53a905da 100644
--- a/apps/dav/lib/Command/SyncSystemAddressBook.php
+++ b/apps/dav/lib/Command/SyncSystemAddressBook.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Comments/CommentNode.php b/apps/dav/lib/Comments/CommentNode.php
index 5dbefa82d93c2..3fbee71c48314 100644
--- a/apps/dav/lib/Comments/CommentNode.php
+++ b/apps/dav/lib/Comments/CommentNode.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Comments/CommentsPlugin.php b/apps/dav/lib/Comments/CommentsPlugin.php
index 92ffae3f73e67..6d6707d84d51c 100644
--- a/apps/dav/lib/Comments/CommentsPlugin.php
+++ b/apps/dav/lib/Comments/CommentsPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Comments/EntityCollection.php b/apps/dav/lib/Comments/EntityCollection.php
index 33c58ee44d288..9533f85294e38 100644
--- a/apps/dav/lib/Comments/EntityCollection.php
+++ b/apps/dav/lib/Comments/EntityCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Comments/EntityTypeCollection.php b/apps/dav/lib/Comments/EntityTypeCollection.php
index 1c8533ca375b0..2697cc78f5a1a 100644
--- a/apps/dav/lib/Comments/EntityTypeCollection.php
+++ b/apps/dav/lib/Comments/EntityTypeCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Comments/RootCollection.php b/apps/dav/lib/Comments/RootCollection.php
index 493d73ec531a7..50e02f98ed04c 100644
--- a/apps/dav/lib/Comments/RootCollection.php
+++ b/apps/dav/lib/Comments/RootCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/LegacyDAVACL.php b/apps/dav/lib/Connector/LegacyDAVACL.php
index 40ce53b8ab074..5618b7e7d7787 100644
--- a/apps/dav/lib/Connector/LegacyDAVACL.php
+++ b/apps/dav/lib/Connector/LegacyDAVACL.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/LegacyPublicAuth.php b/apps/dav/lib/Connector/LegacyPublicAuth.php
index 03d18853de0c6..dc1e034378d74 100644
--- a/apps/dav/lib/Connector/LegacyPublicAuth.php
+++ b/apps/dav/lib/Connector/LegacyPublicAuth.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/AnonymousOptionsPlugin.php b/apps/dav/lib/Connector/Sabre/AnonymousOptionsPlugin.php
index b39dc7197b099..b1586d8010fa4 100644
--- a/apps/dav/lib/Connector/Sabre/AnonymousOptionsPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/AnonymousOptionsPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Connector/Sabre/AppleQuirksPlugin.php b/apps/dav/lib/Connector/Sabre/AppleQuirksPlugin.php
index 88fff5e6a5a69..4d1a5ea4eb0f2 100644
--- a/apps/dav/lib/Connector/Sabre/AppleQuirksPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/AppleQuirksPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Connector/Sabre/Auth.php b/apps/dav/lib/Connector/Sabre/Auth.php
index fa1c2e95fad1f..cd820a13b7339 100644
--- a/apps/dav/lib/Connector/Sabre/Auth.php
+++ b/apps/dav/lib/Connector/Sabre/Auth.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/BearerAuth.php b/apps/dav/lib/Connector/Sabre/BearerAuth.php
index 1b85a9715534c..f5404901150c4 100644
--- a/apps/dav/lib/Connector/Sabre/BearerAuth.php
+++ b/apps/dav/lib/Connector/Sabre/BearerAuth.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Connector/Sabre/BlockLegacyClientPlugin.php b/apps/dav/lib/Connector/Sabre/BlockLegacyClientPlugin.php
index cff60b9e0f888..39af0c0d602a7 100644
--- a/apps/dav/lib/Connector/Sabre/BlockLegacyClientPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/BlockLegacyClientPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/CachingTree.php b/apps/dav/lib/Connector/Sabre/CachingTree.php
index 86e102677c12a..4b12dab5012d0 100644
--- a/apps/dav/lib/Connector/Sabre/CachingTree.php
+++ b/apps/dav/lib/Connector/Sabre/CachingTree.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Connector/Sabre/ChecksumList.php b/apps/dav/lib/Connector/Sabre/ChecksumList.php
index 75d1d718de18f..0df147dc56a9b 100644
--- a/apps/dav/lib/Connector/Sabre/ChecksumList.php
+++ b/apps/dav/lib/Connector/Sabre/ChecksumList.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/CopyEtagHeaderPlugin.php b/apps/dav/lib/Connector/Sabre/CopyEtagHeaderPlugin.php
index 609ac295b4ce1..77413fb31fce1 100644
--- a/apps/dav/lib/Connector/Sabre/CopyEtagHeaderPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/CopyEtagHeaderPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/DavAclPlugin.php b/apps/dav/lib/Connector/Sabre/DavAclPlugin.php
index 7846896182f01..3e80bb1f60b27 100644
--- a/apps/dav/lib/Connector/Sabre/DavAclPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/DavAclPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Directory.php b/apps/dav/lib/Connector/Sabre/Directory.php
index a193417831cd4..814abe7ef2bda 100644
--- a/apps/dav/lib/Connector/Sabre/Directory.php
+++ b/apps/dav/lib/Connector/Sabre/Directory.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/DummyGetResponsePlugin.php b/apps/dav/lib/Connector/Sabre/DummyGetResponsePlugin.php
index 26819836001ca..c4ed63d10cb04 100644
--- a/apps/dav/lib/Connector/Sabre/DummyGetResponsePlugin.php
+++ b/apps/dav/lib/Connector/Sabre/DummyGetResponsePlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Exception/BadGateway.php b/apps/dav/lib/Connector/Sabre/Exception/BadGateway.php
index 41ace00266076..65d8d30719b40 100644
--- a/apps/dav/lib/Connector/Sabre/Exception/BadGateway.php
+++ b/apps/dav/lib/Connector/Sabre/Exception/BadGateway.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/dav/lib/Connector/Sabre/Exception/EntityTooLarge.php b/apps/dav/lib/Connector/Sabre/Exception/EntityTooLarge.php
index 60b3b06ea012a..eb892f91cdad5 100644
--- a/apps/dav/lib/Connector/Sabre/Exception/EntityTooLarge.php
+++ b/apps/dav/lib/Connector/Sabre/Exception/EntityTooLarge.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Exception/FileLocked.php b/apps/dav/lib/Connector/Sabre/Exception/FileLocked.php
index 38708e945e986..be8ffe7399bd2 100644
--- a/apps/dav/lib/Connector/Sabre/Exception/FileLocked.php
+++ b/apps/dav/lib/Connector/Sabre/Exception/FileLocked.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Exception/Forbidden.php b/apps/dav/lib/Connector/Sabre/Exception/Forbidden.php
index 95d4b3ab51411..ea8524626fb8b 100644
--- a/apps/dav/lib/Connector/Sabre/Exception/Forbidden.php
+++ b/apps/dav/lib/Connector/Sabre/Exception/Forbidden.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Exception/InvalidPath.php b/apps/dav/lib/Connector/Sabre/Exception/InvalidPath.php
index dfc08aa8b8811..e95c83d387332 100644
--- a/apps/dav/lib/Connector/Sabre/Exception/InvalidPath.php
+++ b/apps/dav/lib/Connector/Sabre/Exception/InvalidPath.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Exception/PasswordLoginForbidden.php b/apps/dav/lib/Connector/Sabre/Exception/PasswordLoginForbidden.php
index f5cc117fafc54..40a0d90d3b30f 100644
--- a/apps/dav/lib/Connector/Sabre/Exception/PasswordLoginForbidden.php
+++ b/apps/dav/lib/Connector/Sabre/Exception/PasswordLoginForbidden.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Exception/UnsupportedMediaType.php b/apps/dav/lib/Connector/Sabre/Exception/UnsupportedMediaType.php
index c5fbfa3a16c9b..84420dd75d5f8 100644
--- a/apps/dav/lib/Connector/Sabre/Exception/UnsupportedMediaType.php
+++ b/apps/dav/lib/Connector/Sabre/Exception/UnsupportedMediaType.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/ExceptionLoggerPlugin.php b/apps/dav/lib/Connector/Sabre/ExceptionLoggerPlugin.php
index 686386dbfefa8..7aab4f576d746 100644
--- a/apps/dav/lib/Connector/Sabre/ExceptionLoggerPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/ExceptionLoggerPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/FakeLockerPlugin.php b/apps/dav/lib/Connector/Sabre/FakeLockerPlugin.php
index 485b6b09a3cde..b8f0de93601b3 100644
--- a/apps/dav/lib/Connector/Sabre/FakeLockerPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/FakeLockerPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/File.php b/apps/dav/lib/Connector/Sabre/File.php
index cafb00fbe1e66..5582f03ed16d1 100644
--- a/apps/dav/lib/Connector/Sabre/File.php
+++ b/apps/dav/lib/Connector/Sabre/File.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/FilesPlugin.php b/apps/dav/lib/Connector/Sabre/FilesPlugin.php
index 3855f51c65a2d..d42ea389e4afd 100644
--- a/apps/dav/lib/Connector/Sabre/FilesPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/FilesPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php b/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
index c44dcc0d2da88..f59484cc08c2c 100644
--- a/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/FilesReportPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/LockPlugin.php b/apps/dav/lib/Connector/Sabre/LockPlugin.php
index 6640771dc31d0..6c766a76a45e3 100644
--- a/apps/dav/lib/Connector/Sabre/LockPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/LockPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php b/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php
index d5ab7f09dfa49..aa505d7a44202 100644
--- a/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php
+++ b/apps/dav/lib/Connector/Sabre/MaintenancePlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/MtimeSanitizer.php b/apps/dav/lib/Connector/Sabre/MtimeSanitizer.php
index efed6ce09f80b..8628517285cb2 100644
--- a/apps/dav/lib/Connector/Sabre/MtimeSanitizer.php
+++ b/apps/dav/lib/Connector/Sabre/MtimeSanitizer.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\Connector\Sabre;
 
 class MtimeSanitizer {
diff --git a/apps/dav/lib/Connector/Sabre/Node.php b/apps/dav/lib/Connector/Sabre/Node.php
index 4ee6283b0d2c2..9f51bc15b6193 100644
--- a/apps/dav/lib/Connector/Sabre/Node.php
+++ b/apps/dav/lib/Connector/Sabre/Node.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/ObjectTree.php b/apps/dav/lib/Connector/Sabre/ObjectTree.php
index bfbdfb33db047..e8c086c48773b 100644
--- a/apps/dav/lib/Connector/Sabre/ObjectTree.php
+++ b/apps/dav/lib/Connector/Sabre/ObjectTree.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Principal.php b/apps/dav/lib/Connector/Sabre/Principal.php
index 515ef807a25cb..c5c56e0aaa961 100644
--- a/apps/dav/lib/Connector/Sabre/Principal.php
+++ b/apps/dav/lib/Connector/Sabre/Principal.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/QuotaPlugin.php b/apps/dav/lib/Connector/Sabre/QuotaPlugin.php
index 9790fc998377d..d0575d3c445eb 100644
--- a/apps/dav/lib/Connector/Sabre/QuotaPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/QuotaPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/Server.php b/apps/dav/lib/Connector/Sabre/Server.php
index 610c79d56613e..72d6a567573a6 100644
--- a/apps/dav/lib/Connector/Sabre/Server.php
+++ b/apps/dav/lib/Connector/Sabre/Server.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/ServerFactory.php b/apps/dav/lib/Connector/Sabre/ServerFactory.php
index 3aabb828d9c50..70ffebce0849e 100644
--- a/apps/dav/lib/Connector/Sabre/ServerFactory.php
+++ b/apps/dav/lib/Connector/Sabre/ServerFactory.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/ShareTypeList.php b/apps/dav/lib/Connector/Sabre/ShareTypeList.php
index 0b66ed27576f0..d0252a26de43a 100644
--- a/apps/dav/lib/Connector/Sabre/ShareTypeList.php
+++ b/apps/dav/lib/Connector/Sabre/ShareTypeList.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/SharesPlugin.php b/apps/dav/lib/Connector/Sabre/SharesPlugin.php
index 088cf33d85fa8..e9d160ef8b7fd 100644
--- a/apps/dav/lib/Connector/Sabre/SharesPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/SharesPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/TagList.php b/apps/dav/lib/Connector/Sabre/TagList.php
index 9a5cd0d51cf07..9ee18e50584df 100644
--- a/apps/dav/lib/Connector/Sabre/TagList.php
+++ b/apps/dav/lib/Connector/Sabre/TagList.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Connector/Sabre/TagsPlugin.php b/apps/dav/lib/Connector/Sabre/TagsPlugin.php
index 7f05d4d3c03a7..35e41647e7dc3 100644
--- a/apps/dav/lib/Connector/Sabre/TagsPlugin.php
+++ b/apps/dav/lib/Connector/Sabre/TagsPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Controller/BirthdayCalendarController.php b/apps/dav/lib/Controller/BirthdayCalendarController.php
index d3a9239dd22fb..fa5f12a2a772c 100644
--- a/apps/dav/lib/Controller/BirthdayCalendarController.php
+++ b/apps/dav/lib/Controller/BirthdayCalendarController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/DAV/CustomPropertiesBackend.php b/apps/dav/lib/DAV/CustomPropertiesBackend.php
index f73246161baa0..4a7c55f7e22d6 100644
--- a/apps/dav/lib/DAV/CustomPropertiesBackend.php
+++ b/apps/dav/lib/DAV/CustomPropertiesBackend.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\DAV;
 
 use Exception;
diff --git a/apps/dav/lib/DAV/GroupPrincipalBackend.php b/apps/dav/lib/DAV/GroupPrincipalBackend.php
index 143fc7d69f12b..072485318103e 100644
--- a/apps/dav/lib/DAV/GroupPrincipalBackend.php
+++ b/apps/dav/lib/DAV/GroupPrincipalBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/DAV/PublicAuth.php b/apps/dav/lib/DAV/PublicAuth.php
index c2b4ada173aae..d08a11579e406 100644
--- a/apps/dav/lib/DAV/PublicAuth.php
+++ b/apps/dav/lib/DAV/PublicAuth.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/DAV/Sharing/IShareable.php b/apps/dav/lib/DAV/Sharing/IShareable.php
index d83079f697545..019559548ad57 100644
--- a/apps/dav/lib/DAV/Sharing/IShareable.php
+++ b/apps/dav/lib/DAV/Sharing/IShareable.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/DAV/Sharing/Plugin.php b/apps/dav/lib/DAV/Sharing/Plugin.php
index cef8dc0b689d1..789d7fc2ceac2 100644
--- a/apps/dav/lib/DAV/Sharing/Plugin.php
+++ b/apps/dav/lib/DAV/Sharing/Plugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/DAV/Sharing/Xml/Invite.php b/apps/dav/lib/DAV/Sharing/Xml/Invite.php
index 7a20dbe6df730..02c5f86564e4f 100644
--- a/apps/dav/lib/DAV/Sharing/Xml/Invite.php
+++ b/apps/dav/lib/DAV/Sharing/Xml/Invite.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/DAV/Sharing/Xml/ShareRequest.php b/apps/dav/lib/DAV/Sharing/Xml/ShareRequest.php
index aefb39c5701de..3ae150cc51bec 100644
--- a/apps/dav/lib/DAV/Sharing/Xml/ShareRequest.php
+++ b/apps/dav/lib/DAV/Sharing/Xml/ShareRequest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/DAV/SystemPrincipalBackend.php b/apps/dav/lib/DAV/SystemPrincipalBackend.php
index 9760d68f05fbf..d97d6ee8dd6fe 100644
--- a/apps/dav/lib/DAV/SystemPrincipalBackend.php
+++ b/apps/dav/lib/DAV/SystemPrincipalBackend.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/DAV/ViewOnlyPlugin.php b/apps/dav/lib/DAV/ViewOnlyPlugin.php
index d53a74923fe34..fc72a3091bb70 100644
--- a/apps/dav/lib/DAV/ViewOnlyPlugin.php
+++ b/apps/dav/lib/DAV/ViewOnlyPlugin.php
@@ -1,11 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2019 ownCloud GmbH
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\DAV;
 
 use OCA\DAV\Connector\Sabre\Exception\Forbidden;
diff --git a/apps/dav/lib/Exception/UnsupportedLimitOnInitialSyncException.php b/apps/dav/lib/Exception/UnsupportedLimitOnInitialSyncException.php
index 1022625c23b28..6db2488a19cb7 100644
--- a/apps/dav/lib/Exception/UnsupportedLimitOnInitialSyncException.php
+++ b/apps/dav/lib/Exception/UnsupportedLimitOnInitialSyncException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Files/ErrorPagePlugin.php b/apps/dav/lib/Files/ErrorPagePlugin.php
index 2b93f0e7a49ac..1481b5a9f58f8 100644
--- a/apps/dav/lib/Files/ErrorPagePlugin.php
+++ b/apps/dav/lib/Files/ErrorPagePlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Files/FileSearchBackend.php b/apps/dav/lib/Files/FileSearchBackend.php
index 1b7859621129b..60bfe8daf8265 100644
--- a/apps/dav/lib/Files/FileSearchBackend.php
+++ b/apps/dav/lib/Files/FileSearchBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Files/FilesHome.php b/apps/dav/lib/Files/FilesHome.php
index f8aa82cdcc9a4..f149033a6e812 100644
--- a/apps/dav/lib/Files/FilesHome.php
+++ b/apps/dav/lib/Files/FilesHome.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Files/LazySearchBackend.php b/apps/dav/lib/Files/LazySearchBackend.php
index a0ad730ff2bc9..027aee106235c 100644
--- a/apps/dav/lib/Files/LazySearchBackend.php
+++ b/apps/dav/lib/Files/LazySearchBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Files/RootCollection.php b/apps/dav/lib/Files/RootCollection.php
index d538d15ec1b75..e03aa442f099b 100644
--- a/apps/dav/lib/Files/RootCollection.php
+++ b/apps/dav/lib/Files/RootCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Files/Sharing/FilesDropPlugin.php b/apps/dav/lib/Files/Sharing/FilesDropPlugin.php
index 69328d42272c6..1ff7116e9bfc0 100644
--- a/apps/dav/lib/Files/Sharing/FilesDropPlugin.php
+++ b/apps/dav/lib/Files/Sharing/FilesDropPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Files/Sharing/PublicLinkCheckPlugin.php b/apps/dav/lib/Files/Sharing/PublicLinkCheckPlugin.php
index 38a45b3fc37e4..c3b269fb9ed43 100644
--- a/apps/dav/lib/Files/Sharing/PublicLinkCheckPlugin.php
+++ b/apps/dav/lib/Files/Sharing/PublicLinkCheckPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/HookManager.php b/apps/dav/lib/HookManager.php
index 9f4bc95d89b11..7f9c38dcd040c 100644
--- a/apps/dav/lib/HookManager.php
+++ b/apps/dav/lib/HookManager.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Migration/BuildCalendarSearchIndex.php b/apps/dav/lib/Migration/BuildCalendarSearchIndex.php
index b157934a1ff95..0ff7355b7249f 100644
--- a/apps/dav/lib/Migration/BuildCalendarSearchIndex.php
+++ b/apps/dav/lib/Migration/BuildCalendarSearchIndex.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/BuildSocialSearchIndex.php b/apps/dav/lib/Migration/BuildSocialSearchIndex.php
index 5fab3f4ef7772..cdf76e2e526b6 100644
--- a/apps/dav/lib/Migration/BuildSocialSearchIndex.php
+++ b/apps/dav/lib/Migration/BuildSocialSearchIndex.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/CalDAVRemoveEmptyValue.php b/apps/dav/lib/Migration/CalDAVRemoveEmptyValue.php
index ecc462e153b00..abcc87a68fbee 100644
--- a/apps/dav/lib/Migration/CalDAVRemoveEmptyValue.php
+++ b/apps/dav/lib/Migration/CalDAVRemoveEmptyValue.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/FixBirthdayCalendarComponent.php b/apps/dav/lib/Migration/FixBirthdayCalendarComponent.php
index 6833ca2ffa6d6..51527cc4f12e5 100644
--- a/apps/dav/lib/Migration/FixBirthdayCalendarComponent.php
+++ b/apps/dav/lib/Migration/FixBirthdayCalendarComponent.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/dav/lib/Migration/RegenerateBirthdayCalendars.php b/apps/dav/lib/Migration/RegenerateBirthdayCalendars.php
index 14037801eb43c..ec9f3bce45d65 100644
--- a/apps/dav/lib/Migration/RegenerateBirthdayCalendars.php
+++ b/apps/dav/lib/Migration/RegenerateBirthdayCalendars.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/RemoveObjectProperties.php b/apps/dav/lib/Migration/RemoveObjectProperties.php
index 3f505ecb1e24a..eadb82558a447 100644
--- a/apps/dav/lib/Migration/RemoveObjectProperties.php
+++ b/apps/dav/lib/Migration/RemoveObjectProperties.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/dav/lib/Migration/Version1004Date20170825134824.php b/apps/dav/lib/Migration/Version1004Date20170825134824.php
index 54c4c1947784c..465c6444ec243 100644
--- a/apps/dav/lib/Migration/Version1004Date20170825134824.php
+++ b/apps/dav/lib/Migration/Version1004Date20170825134824.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/Version1004Date20170919104507.php b/apps/dav/lib/Migration/Version1004Date20170919104507.php
index ca20e2fb4e77a..c229bcea48557 100644
--- a/apps/dav/lib/Migration/Version1004Date20170919104507.php
+++ b/apps/dav/lib/Migration/Version1004Date20170919104507.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/Version1004Date20170924124212.php b/apps/dav/lib/Migration/Version1004Date20170924124212.php
index a8b85469214dc..5cf15735652b1 100644
--- a/apps/dav/lib/Migration/Version1004Date20170924124212.php
+++ b/apps/dav/lib/Migration/Version1004Date20170924124212.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/Version1004Date20170926103422.php b/apps/dav/lib/Migration/Version1004Date20170926103422.php
index 38506b0fc5d9b..333bdd197fffc 100644
--- a/apps/dav/lib/Migration/Version1004Date20170926103422.php
+++ b/apps/dav/lib/Migration/Version1004Date20170926103422.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/Version1005Date20180530124431.php b/apps/dav/lib/Migration/Version1005Date20180530124431.php
index ac1994893fdcd..1592eaaf19764 100644
--- a/apps/dav/lib/Migration/Version1005Date20180530124431.php
+++ b/apps/dav/lib/Migration/Version1005Date20180530124431.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Migration/Version1006Date20180619154313.php b/apps/dav/lib/Migration/Version1006Date20180619154313.php
index 195209ed046f1..ad775055a048b 100644
--- a/apps/dav/lib/Migration/Version1006Date20180619154313.php
+++ b/apps/dav/lib/Migration/Version1006Date20180619154313.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Provisioning/Apple/AppleProvisioningNode.php b/apps/dav/lib/Provisioning/Apple/AppleProvisioningNode.php
index 198a09b4bc82b..f6b23de07f732 100644
--- a/apps/dav/lib/Provisioning/Apple/AppleProvisioningNode.php
+++ b/apps/dav/lib/Provisioning/Apple/AppleProvisioningNode.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Provisioning/Apple/AppleProvisioningPlugin.php b/apps/dav/lib/Provisioning/Apple/AppleProvisioningPlugin.php
index 36b08cd940cf8..f4dd10b0404d2 100644
--- a/apps/dav/lib/Provisioning/Apple/AppleProvisioningPlugin.php
+++ b/apps/dav/lib/Provisioning/Apple/AppleProvisioningPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/RootCollection.php b/apps/dav/lib/RootCollection.php
index 6ede8cb683c17..ffe8347f0381d 100644
--- a/apps/dav/lib/RootCollection.php
+++ b/apps/dav/lib/RootCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Server.php b/apps/dav/lib/Server.php
index 835a13a45b26e..aa30122053c61 100644
--- a/apps/dav/lib/Server.php
+++ b/apps/dav/lib/Server.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Settings/CalDAVSettings.php b/apps/dav/lib/Settings/CalDAVSettings.php
index 5b6b7fa7e3dcd..251915211d435 100644
--- a/apps/dav/lib/Settings/CalDAVSettings.php
+++ b/apps/dav/lib/Settings/CalDAVSettings.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/SystemTag/SystemTagList.php b/apps/dav/lib/SystemTag/SystemTagList.php
index 087c84fabd905..adb0c50703c3a 100644
--- a/apps/dav/lib/SystemTag/SystemTagList.php
+++ b/apps/dav/lib/SystemTag/SystemTagList.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/dav/lib/SystemTag/SystemTagMappingNode.php b/apps/dav/lib/SystemTag/SystemTagMappingNode.php
index 12d604a7d6e4b..9229f63e22203 100644
--- a/apps/dav/lib/SystemTag/SystemTagMappingNode.php
+++ b/apps/dav/lib/SystemTag/SystemTagMappingNode.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/SystemTag/SystemTagNode.php b/apps/dav/lib/SystemTag/SystemTagNode.php
index 9357f207779e6..6f7273fa3d536 100644
--- a/apps/dav/lib/SystemTag/SystemTagNode.php
+++ b/apps/dav/lib/SystemTag/SystemTagNode.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/SystemTag/SystemTagPlugin.php b/apps/dav/lib/SystemTag/SystemTagPlugin.php
index 3c34f4263f65f..6320a2b1272ea 100644
--- a/apps/dav/lib/SystemTag/SystemTagPlugin.php
+++ b/apps/dav/lib/SystemTag/SystemTagPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/SystemTag/SystemTagsByIdCollection.php b/apps/dav/lib/SystemTag/SystemTagsByIdCollection.php
index cf889985d1b43..5a773d6fcd18d 100644
--- a/apps/dav/lib/SystemTag/SystemTagsByIdCollection.php
+++ b/apps/dav/lib/SystemTag/SystemTagsByIdCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/SystemTag/SystemTagsObjectMappingCollection.php b/apps/dav/lib/SystemTag/SystemTagsObjectMappingCollection.php
index da58f9bf30807..3238e7b17c224 100644
--- a/apps/dav/lib/SystemTag/SystemTagsObjectMappingCollection.php
+++ b/apps/dav/lib/SystemTag/SystemTagsObjectMappingCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/SystemTag/SystemTagsObjectTypeCollection.php b/apps/dav/lib/SystemTag/SystemTagsObjectTypeCollection.php
index 9bd66ca0d61b1..981044bae503d 100644
--- a/apps/dav/lib/SystemTag/SystemTagsObjectTypeCollection.php
+++ b/apps/dav/lib/SystemTag/SystemTagsObjectTypeCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/SystemTag/SystemTagsRelationsCollection.php b/apps/dav/lib/SystemTag/SystemTagsRelationsCollection.php
index dc0f1bc5d36e3..091a62146a0be 100644
--- a/apps/dav/lib/SystemTag/SystemTagsRelationsCollection.php
+++ b/apps/dav/lib/SystemTag/SystemTagsRelationsCollection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Traits/PrincipalProxyTrait.php b/apps/dav/lib/Traits/PrincipalProxyTrait.php
index 279f796b72096..97fccd63d7419 100644
--- a/apps/dav/lib/Traits/PrincipalProxyTrait.php
+++ b/apps/dav/lib/Traits/PrincipalProxyTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/lib/Upload/AssemblyStream.php b/apps/dav/lib/Upload/AssemblyStream.php
index 736905d01c2fa..73863abd6e4a9 100644
--- a/apps/dav/lib/Upload/AssemblyStream.php
+++ b/apps/dav/lib/Upload/AssemblyStream.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Upload/ChunkingPlugin.php b/apps/dav/lib/Upload/ChunkingPlugin.php
index cf4d65168ccc9..8f1a80bd7ab5a 100644
--- a/apps/dav/lib/Upload/ChunkingPlugin.php
+++ b/apps/dav/lib/Upload/ChunkingPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2017 ownCloud GmbH
diff --git a/apps/dav/lib/Upload/FutureFile.php b/apps/dav/lib/Upload/FutureFile.php
index ba37c56978dbd..96885b9d4b380 100644
--- a/apps/dav/lib/Upload/FutureFile.php
+++ b/apps/dav/lib/Upload/FutureFile.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Upload/PartFile.php b/apps/dav/lib/Upload/PartFile.php
index 11900997a9010..f609140c64684 100644
--- a/apps/dav/lib/Upload/PartFile.php
+++ b/apps/dav/lib/Upload/PartFile.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Upload/UploadFolder.php b/apps/dav/lib/Upload/UploadFolder.php
index 8ea0591ab1680..fc46dc025b855 100644
--- a/apps/dav/lib/Upload/UploadFolder.php
+++ b/apps/dav/lib/Upload/UploadFolder.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/lib/Upload/UploadHome.php b/apps/dav/lib/Upload/UploadHome.php
index 739c38feb3037..089a2627432a5 100644
--- a/apps/dav/lib/Upload/UploadHome.php
+++ b/apps/dav/lib/Upload/UploadHome.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/templates/schedule-response-error.php b/apps/dav/templates/schedule-response-error.php
index 9604c83f9229e..60780e0c8d47d 100644
--- a/apps/dav/templates/schedule-response-error.php
+++ b/apps/dav/templates/schedule-response-error.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/templates/schedule-response-options.php b/apps/dav/templates/schedule-response-options.php
index 30020cc853576..36e669aafd778 100644
--- a/apps/dav/templates/schedule-response-options.php
+++ b/apps/dav/templates/schedule-response-options.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/templates/schedule-response-success.php b/apps/dav/templates/schedule-response-success.php
index 4651b9ea96446..1fad3e8cb7907 100644
--- a/apps/dav/templates/schedule-response-success.php
+++ b/apps/dav/templates/schedule-response-success.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/templates/settings-admin-caldav.php b/apps/dav/templates/settings-admin-caldav.php
index d0bc92bc965f9..e28347268c541 100644
--- a/apps/dav/templates/settings-admin-caldav.php
+++ b/apps/dav/templates/settings-admin-caldav.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/templates/settings-personal-availability.php b/apps/dav/templates/settings-personal-availability.php
index da0b2d9f104d1..f57a5c5a14282 100644
--- a/apps/dav/templates/settings-personal-availability.php
+++ b/apps/dav/templates/settings-personal-availability.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/AppInfo/ApplicationTest.php b/apps/dav/tests/unit/AppInfo/ApplicationTest.php
index f8ddd9bb821d7..7135ab19d3227 100644
--- a/apps/dav/tests/unit/AppInfo/ApplicationTest.php
+++ b/apps/dav/tests/unit/AppInfo/ApplicationTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/AppInfo/PluginManagerTest.php b/apps/dav/tests/unit/AppInfo/PluginManagerTest.php
index 8211cdfc02cce..3353727fef8a7 100644
--- a/apps/dav/tests/unit/AppInfo/PluginManagerTest.php
+++ b/apps/dav/tests/unit/AppInfo/PluginManagerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/dav/tests/unit/Avatars/AvatarHomeTest.php b/apps/dav/tests/unit/Avatars/AvatarHomeTest.php
index 9699c146c8ac1..14b3ea36db064 100644
--- a/apps/dav/tests/unit/Avatars/AvatarHomeTest.php
+++ b/apps/dav/tests/unit/Avatars/AvatarHomeTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2017 ownCloud GmbH
diff --git a/apps/dav/tests/unit/Avatars/AvatarNodeTest.php b/apps/dav/tests/unit/Avatars/AvatarNodeTest.php
index 92c02e17ff81b..dcae2190edaf7 100644
--- a/apps/dav/tests/unit/Avatars/AvatarNodeTest.php
+++ b/apps/dav/tests/unit/Avatars/AvatarNodeTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2017 ownCloud GmbH
diff --git a/apps/dav/tests/unit/CalDAV/AbstractCalDavBackend.php b/apps/dav/tests/unit/CalDAV/AbstractCalDavBackend.php
index 946a2328bf8df..049dc7d450da6 100644
--- a/apps/dav/tests/unit/CalDAV/AbstractCalDavBackend.php
+++ b/apps/dav/tests/unit/CalDAV/AbstractCalDavBackend.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CalDAV/Activity/BackendTest.php b/apps/dav/tests/unit/CalDAV/Activity/BackendTest.php
index 6ace633b072f7..9e4bc0ba811e2 100644
--- a/apps/dav/tests/unit/CalDAV/Activity/BackendTest.php
+++ b/apps/dav/tests/unit/CalDAV/Activity/BackendTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Activity/Filter/CalendarTest.php b/apps/dav/tests/unit/CalDAV/Activity/Filter/CalendarTest.php
index a7c84260f2154..638272b9111e6 100644
--- a/apps/dav/tests/unit/CalDAV/Activity/Filter/CalendarTest.php
+++ b/apps/dav/tests/unit/CalDAV/Activity/Filter/CalendarTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Activity/Filter/GenericTest.php b/apps/dav/tests/unit/CalDAV/Activity/Filter/GenericTest.php
index fcfd1f815174d..83fc003b1c554 100644
--- a/apps/dav/tests/unit/CalDAV/Activity/Filter/GenericTest.php
+++ b/apps/dav/tests/unit/CalDAV/Activity/Filter/GenericTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Activity/Filter/TodoTest.php b/apps/dav/tests/unit/CalDAV/Activity/Filter/TodoTest.php
index 6aa47f3375015..d98aecc63d864 100644
--- a/apps/dav/tests/unit/CalDAV/Activity/Filter/TodoTest.php
+++ b/apps/dav/tests/unit/CalDAV/Activity/Filter/TodoTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Activity/Provider/BaseTest.php b/apps/dav/tests/unit/CalDAV/Activity/Provider/BaseTest.php
index ba97c888b0ca0..128403a6ebb49 100644
--- a/apps/dav/tests/unit/CalDAV/Activity/Provider/BaseTest.php
+++ b/apps/dav/tests/unit/CalDAV/Activity/Provider/BaseTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Activity/Provider/EventTest.php b/apps/dav/tests/unit/CalDAV/Activity/Provider/EventTest.php
index ec237825731c5..36ae5c73440d4 100644
--- a/apps/dav/tests/unit/CalDAV/Activity/Provider/EventTest.php
+++ b/apps/dav/tests/unit/CalDAV/Activity/Provider/EventTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Activity/Setting/GenericTest.php b/apps/dav/tests/unit/CalDAV/Activity/Setting/GenericTest.php
index 678b815999c57..00eacd987f95d 100644
--- a/apps/dav/tests/unit/CalDAV/Activity/Setting/GenericTest.php
+++ b/apps/dav/tests/unit/CalDAV/Activity/Setting/GenericTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/AppCalendar/AppCalendarTest.php b/apps/dav/tests/unit/CalDAV/AppCalendar/AppCalendarTest.php
index f7fa114ff28d8..7d9a1e16d9541 100644
--- a/apps/dav/tests/unit/CalDAV/AppCalendar/AppCalendarTest.php
+++ b/apps/dav/tests/unit/CalDAV/AppCalendar/AppCalendarTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/AppCalendar/CalendarObjectTest.php b/apps/dav/tests/unit/CalDAV/AppCalendar/CalendarObjectTest.php
index a913c2dde6f19..a4e67519fdff4 100644
--- a/apps/dav/tests/unit/CalDAV/AppCalendar/CalendarObjectTest.php
+++ b/apps/dav/tests/unit/CalDAV/AppCalendar/CalendarObjectTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/BirthdayCalendar/EnablePluginTest.php b/apps/dav/tests/unit/CalDAV/BirthdayCalendar/EnablePluginTest.php
index e60efc6fb19db..f7fc3b0266378 100644
--- a/apps/dav/tests/unit/CalDAV/BirthdayCalendar/EnablePluginTest.php
+++ b/apps/dav/tests/unit/CalDAV/BirthdayCalendar/EnablePluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/CachedSubscriptionObjectTest.php b/apps/dav/tests/unit/CalDAV/CachedSubscriptionObjectTest.php
index 56e4930d3b37a..0e78f23f83f54 100644
--- a/apps/dav/tests/unit/CalDAV/CachedSubscriptionObjectTest.php
+++ b/apps/dav/tests/unit/CalDAV/CachedSubscriptionObjectTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/CachedSubscriptionTest.php b/apps/dav/tests/unit/CalDAV/CachedSubscriptionTest.php
index e1d22bc3e7b02..d461fccb8eab8 100644
--- a/apps/dav/tests/unit/CalDAV/CachedSubscriptionTest.php
+++ b/apps/dav/tests/unit/CalDAV/CachedSubscriptionTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/CalDavBackendTest.php b/apps/dav/tests/unit/CalDAV/CalDavBackendTest.php
index 61c03c9e4c1bd..19f36096c1204 100644
--- a/apps/dav/tests/unit/CalDAV/CalDavBackendTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalDavBackendTest.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\Tests\unit\CalDAV;
 
 use DateInterval;
diff --git a/apps/dav/tests/unit/CalDAV/CalendarHomeTest.php b/apps/dav/tests/unit/CalDAV/CalendarHomeTest.php
index 9956c17fff354..a3a96422fc124 100644
--- a/apps/dav/tests/unit/CalDAV/CalendarHomeTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalendarHomeTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CalDAV/CalendarImplTest.php b/apps/dav/tests/unit/CalDAV/CalendarImplTest.php
index a0b2965f22376..eeb7ab09e257b 100644
--- a/apps/dav/tests/unit/CalDAV/CalendarImplTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalendarImplTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/CalendarManagerTest.php b/apps/dav/tests/unit/CalDAV/CalendarManagerTest.php
index 63d92dff40d30..110bea35ab205 100644
--- a/apps/dav/tests/unit/CalDAV/CalendarManagerTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalendarManagerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/CalendarTest.php b/apps/dav/tests/unit/CalDAV/CalendarTest.php
index 6433af8c3402a..204c3b818befe 100644
--- a/apps/dav/tests/unit/CalDAV/CalendarTest.php
+++ b/apps/dav/tests/unit/CalDAV/CalendarTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CalDAV/Integration/ExternalCalendarTest.php b/apps/dav/tests/unit/CalDAV/Integration/ExternalCalendarTest.php
index 778df5697f0a2..0b3f481c47e41 100644
--- a/apps/dav/tests/unit/CalDAV/Integration/ExternalCalendarTest.php
+++ b/apps/dav/tests/unit/CalDAV/Integration/ExternalCalendarTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Listener/CalendarPublicationListenerTest.php b/apps/dav/tests/unit/CalDAV/Listener/CalendarPublicationListenerTest.php
index b55359cd2087f..b3051acbbc9a5 100644
--- a/apps/dav/tests/unit/CalDAV/Listener/CalendarPublicationListenerTest.php
+++ b/apps/dav/tests/unit/CalDAV/Listener/CalendarPublicationListenerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Listener/CalendarShareUpdateListenerTest.php b/apps/dav/tests/unit/CalDAV/Listener/CalendarShareUpdateListenerTest.php
index b8414ecd69586..33f50359d6baf 100644
--- a/apps/dav/tests/unit/CalDAV/Listener/CalendarShareUpdateListenerTest.php
+++ b/apps/dav/tests/unit/CalDAV/Listener/CalendarShareUpdateListenerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Listener/SubscriptionListenerTest.php b/apps/dav/tests/unit/CalDAV/Listener/SubscriptionListenerTest.php
index 589e659b9ea3a..5b89a59dcf274 100644
--- a/apps/dav/tests/unit/CalDAV/Listener/SubscriptionListenerTest.php
+++ b/apps/dav/tests/unit/CalDAV/Listener/SubscriptionListenerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/OutboxTest.php b/apps/dav/tests/unit/CalDAV/OutboxTest.php
index def2bd801575a..294b92f4b484f 100644
--- a/apps/dav/tests/unit/CalDAV/OutboxTest.php
+++ b/apps/dav/tests/unit/CalDAV/OutboxTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/PluginTest.php b/apps/dav/tests/unit/CalDAV/PluginTest.php
index 0915fdf2646b8..5d841f68a954f 100644
--- a/apps/dav/tests/unit/CalDAV/PluginTest.php
+++ b/apps/dav/tests/unit/CalDAV/PluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/PublicCalendarRootTest.php b/apps/dav/tests/unit/CalDAV/PublicCalendarRootTest.php
index 4333754222bad..54cdb8166b064 100644
--- a/apps/dav/tests/unit/CalDAV/PublicCalendarRootTest.php
+++ b/apps/dav/tests/unit/CalDAV/PublicCalendarRootTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/PublicCalendarTest.php b/apps/dav/tests/unit/CalDAV/PublicCalendarTest.php
index 0609892c279ce..961ecc8eb7f16 100644
--- a/apps/dav/tests/unit/CalDAV/PublicCalendarTest.php
+++ b/apps/dav/tests/unit/CalDAV/PublicCalendarTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Publishing/PublisherTest.php b/apps/dav/tests/unit/CalDAV/Publishing/PublisherTest.php
index 769e153764671..fdf9bb8a11f25 100644
--- a/apps/dav/tests/unit/CalDAV/Publishing/PublisherTest.php
+++ b/apps/dav/tests/unit/CalDAV/Publishing/PublisherTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Publishing/PublishingTest.php b/apps/dav/tests/unit/CalDAV/Publishing/PublishingTest.php
index 8aecdf7f0dd2b..7b51462c91c54 100644
--- a/apps/dav/tests/unit/CalDAV/Publishing/PublishingTest.php
+++ b/apps/dav/tests/unit/CalDAV/Publishing/PublishingTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/ResourceBooking/AbstractPrincipalBackendTest.php b/apps/dav/tests/unit/CalDAV/ResourceBooking/AbstractPrincipalBackendTest.php
index b2fd9cfb93f18..ee26273acb3da 100644
--- a/apps/dav/tests/unit/CalDAV/ResourceBooking/AbstractPrincipalBackendTest.php
+++ b/apps/dav/tests/unit/CalDAV/ResourceBooking/AbstractPrincipalBackendTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/ResourceBooking/ResourcePrincipalBackendTest.php b/apps/dav/tests/unit/CalDAV/ResourceBooking/ResourcePrincipalBackendTest.php
index d430afb0b013b..291d09e645578 100644
--- a/apps/dav/tests/unit/CalDAV/ResourceBooking/ResourcePrincipalBackendTest.php
+++ b/apps/dav/tests/unit/CalDAV/ResourceBooking/ResourcePrincipalBackendTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/ResourceBooking/RoomPrincipalBackendTest.php b/apps/dav/tests/unit/CalDAV/ResourceBooking/RoomPrincipalBackendTest.php
index cd63a3512ae45..b8b3b8c4fb027 100644
--- a/apps/dav/tests/unit/CalDAV/ResourceBooking/RoomPrincipalBackendTest.php
+++ b/apps/dav/tests/unit/CalDAV/ResourceBooking/RoomPrincipalBackendTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Schedule/IMipPluginTest.php b/apps/dav/tests/unit/CalDAV/Schedule/IMipPluginTest.php
index 36ce091fc6907..0c48109fbfc78 100644
--- a/apps/dav/tests/unit/CalDAV/Schedule/IMipPluginTest.php
+++ b/apps/dav/tests/unit/CalDAV/Schedule/IMipPluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CalDAV/Schedule/IMipServiceTest.php b/apps/dav/tests/unit/CalDAV/Schedule/IMipServiceTest.php
index ef5a0b17c6eee..af5ea8ec8cb6c 100644
--- a/apps/dav/tests/unit/CalDAV/Schedule/IMipServiceTest.php
+++ b/apps/dav/tests/unit/CalDAV/Schedule/IMipServiceTest.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\Tests\unit\CalDAV\Schedule;
 
 use OC\L10N\L10N;
diff --git a/apps/dav/tests/unit/CalDAV/Schedule/PluginTest.php b/apps/dav/tests/unit/CalDAV/Schedule/PluginTest.php
index 06261ca6fa5ae..1f147ec4da3da 100644
--- a/apps/dav/tests/unit/CalDAV/Schedule/PluginTest.php
+++ b/apps/dav/tests/unit/CalDAV/Schedule/PluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Search/Request/CalendarSearchReportTest.php b/apps/dav/tests/unit/CalDAV/Search/Request/CalendarSearchReportTest.php
index cbfd4639ed75e..b37e320e2d81e 100644
--- a/apps/dav/tests/unit/CalDAV/Search/Request/CalendarSearchReportTest.php
+++ b/apps/dav/tests/unit/CalDAV/Search/Request/CalendarSearchReportTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Search/SearchPluginTest.php b/apps/dav/tests/unit/CalDAV/Search/SearchPluginTest.php
index 0da971dc36b24..fe14d9d99fde1 100644
--- a/apps/dav/tests/unit/CalDAV/Search/SearchPluginTest.php
+++ b/apps/dav/tests/unit/CalDAV/Search/SearchPluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/Status/StatusServiceTest.php b/apps/dav/tests/unit/CalDAV/Status/StatusServiceTest.php
index 78e76cf507d42..872764dee28cb 100644
--- a/apps/dav/tests/unit/CalDAV/Status/StatusServiceTest.php
+++ b/apps/dav/tests/unit/CalDAV/Status/StatusServiceTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/TipBrokerTest.php b/apps/dav/tests/unit/CalDAV/TipBrokerTest.php
index 20bca6481a966..446eb137012ba 100644
--- a/apps/dav/tests/unit/CalDAV/TipBrokerTest.php
+++ b/apps/dav/tests/unit/CalDAV/TipBrokerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CalDAV/WebcalCaching/PluginTest.php b/apps/dav/tests/unit/CalDAV/WebcalCaching/PluginTest.php
index 82c03c5cf6844..7f185ab7933be 100644
--- a/apps/dav/tests/unit/CalDAV/WebcalCaching/PluginTest.php
+++ b/apps/dav/tests/unit/CalDAV/WebcalCaching/PluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CapabilitiesTest.php b/apps/dav/tests/unit/CapabilitiesTest.php
index acdfb4a244324..a68b1174a4e75 100644
--- a/apps/dav/tests/unit/CapabilitiesTest.php
+++ b/apps/dav/tests/unit/CapabilitiesTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CardDAV/Activity/BackendTest.php b/apps/dav/tests/unit/CardDAV/Activity/BackendTest.php
index 134a6ca5ca04e..735df0b4ea021 100644
--- a/apps/dav/tests/unit/CardDAV/Activity/BackendTest.php
+++ b/apps/dav/tests/unit/CardDAV/Activity/BackendTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/CardDAV/AddressBookImplTest.php b/apps/dav/tests/unit/CardDAV/AddressBookImplTest.php
index dff368b923cba..ff3fc0fbce2b1 100644
--- a/apps/dav/tests/unit/CardDAV/AddressBookImplTest.php
+++ b/apps/dav/tests/unit/CardDAV/AddressBookImplTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CardDAV/AddressBookTest.php b/apps/dav/tests/unit/CardDAV/AddressBookTest.php
index cbdb9a1402ca4..b5469df12b034 100644
--- a/apps/dav/tests/unit/CardDAV/AddressBookTest.php
+++ b/apps/dav/tests/unit/CardDAV/AddressBookTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php b/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
index aeee04fd6eee8..2be7111726b76 100644
--- a/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
+++ b/apps/dav/tests/unit/CardDAV/BirthdayServiceTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CardDAV/CardDavBackendTest.php b/apps/dav/tests/unit/CardDAV/CardDavBackendTest.php
index 96968909d1cc6..a240eed3c2b9c 100644
--- a/apps/dav/tests/unit/CardDAV/CardDavBackendTest.php
+++ b/apps/dav/tests/unit/CardDAV/CardDavBackendTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CardDAV/ContactsManagerTest.php b/apps/dav/tests/unit/CardDAV/ContactsManagerTest.php
index 6b1abb2718d0b..74f88db2f734b 100644
--- a/apps/dav/tests/unit/CardDAV/ContactsManagerTest.php
+++ b/apps/dav/tests/unit/CardDAV/ContactsManagerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CardDAV/ImageExportPluginTest.php b/apps/dav/tests/unit/CardDAV/ImageExportPluginTest.php
index 6718153f91041..8b53cf80b7bc0 100644
--- a/apps/dav/tests/unit/CardDAV/ImageExportPluginTest.php
+++ b/apps/dav/tests/unit/CardDAV/ImageExportPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CardDAV/Sharing/PluginTest.php b/apps/dav/tests/unit/CardDAV/Sharing/PluginTest.php
index f35eb9f00401c..7b4111b4a849e 100644
--- a/apps/dav/tests/unit/CardDAV/Sharing/PluginTest.php
+++ b/apps/dav/tests/unit/CardDAV/Sharing/PluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/CardDAV/SyncServiceTest.php b/apps/dav/tests/unit/CardDAV/SyncServiceTest.php
index 5af42e2ea4ec9..03c9742cb61fd 100644
--- a/apps/dav/tests/unit/CardDAV/SyncServiceTest.php
+++ b/apps/dav/tests/unit/CardDAV/SyncServiceTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Command/ListCalendarsTest.php b/apps/dav/tests/unit/Command/ListCalendarsTest.php
index 1f5f9882ac46e..4fb14c91ec0ed 100644
--- a/apps/dav/tests/unit/Command/ListCalendarsTest.php
+++ b/apps/dav/tests/unit/Command/ListCalendarsTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/Command/MoveCalendarTest.php b/apps/dav/tests/unit/Command/MoveCalendarTest.php
index 9b935ca3cdbf1..bf8f99c7f8f19 100644
--- a/apps/dav/tests/unit/Command/MoveCalendarTest.php
+++ b/apps/dav/tests/unit/Command/MoveCalendarTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/Command/RemoveInvalidSharesTest.php b/apps/dav/tests/unit/Command/RemoveInvalidSharesTest.php
index 3c597e22a95a8..8fc84a3d9ac87 100644
--- a/apps/dav/tests/unit/Command/RemoveInvalidSharesTest.php
+++ b/apps/dav/tests/unit/Command/RemoveInvalidSharesTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2018 ownCloud GmbH
diff --git a/apps/dav/tests/unit/Comments/CommentsNodeTest.php b/apps/dav/tests/unit/Comments/CommentsNodeTest.php
index c253c59df0f93..dd35df67d9998 100644
--- a/apps/dav/tests/unit/Comments/CommentsNodeTest.php
+++ b/apps/dav/tests/unit/Comments/CommentsNodeTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Comments/CommentsPluginTest.php b/apps/dav/tests/unit/Comments/CommentsPluginTest.php
index 5ca0cedf04bac..c0b7d20f8211c 100644
--- a/apps/dav/tests/unit/Comments/CommentsPluginTest.php
+++ b/apps/dav/tests/unit/Comments/CommentsPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Comments/EntityCollectionTest.php b/apps/dav/tests/unit/Comments/EntityCollectionTest.php
index e5a68e5a72684..53c8e4ef2d389 100644
--- a/apps/dav/tests/unit/Comments/EntityCollectionTest.php
+++ b/apps/dav/tests/unit/Comments/EntityCollectionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Comments/EntityTypeCollectionTest.php b/apps/dav/tests/unit/Comments/EntityTypeCollectionTest.php
index e5706099270d3..55b3e91b22553 100644
--- a/apps/dav/tests/unit/Comments/EntityTypeCollectionTest.php
+++ b/apps/dav/tests/unit/Comments/EntityTypeCollectionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Comments/RootCollectionTest.php b/apps/dav/tests/unit/Comments/RootCollectionTest.php
index 5d9e828f687c1..f0c191593c4d9 100644
--- a/apps/dav/tests/unit/Comments/RootCollectionTest.php
+++ b/apps/dav/tests/unit/Comments/RootCollectionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/LegacyPublicAuthTest.php b/apps/dav/tests/unit/Connector/LegacyPublicAuthTest.php
index 2bb683741627e..96df715a90783 100644
--- a/apps/dav/tests/unit/Connector/LegacyPublicAuthTest.php
+++ b/apps/dav/tests/unit/Connector/LegacyPublicAuthTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/AuthTest.php b/apps/dav/tests/unit/Connector/Sabre/AuthTest.php
index c6d247b395167..4f545608db42a 100644
--- a/apps/dav/tests/unit/Connector/Sabre/AuthTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/AuthTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/BearerAuthTest.php b/apps/dav/tests/unit/Connector/Sabre/BearerAuthTest.php
index 06c070454af8b..121b33935adf5 100644
--- a/apps/dav/tests/unit/Connector/Sabre/BearerAuthTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/BearerAuthTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/Connector/Sabre/CommentsPropertiesPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/CommentsPropertiesPluginTest.php
index 1cda0e4dbdb08..593c1fde9da58 100644
--- a/apps/dav/tests/unit/Connector/Sabre/CommentsPropertiesPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/CommentsPropertiesPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/CopyEtagHeaderPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/CopyEtagHeaderPluginTest.php
index bc19e071ee791..0e6eeb7589523 100644
--- a/apps/dav/tests/unit/Connector/Sabre/CopyEtagHeaderPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/CopyEtagHeaderPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/CustomPropertiesBackendTest.php b/apps/dav/tests/unit/Connector/Sabre/CustomPropertiesBackendTest.php
index 72d5e7198a304..f3080b8cec828 100644
--- a/apps/dav/tests/unit/Connector/Sabre/CustomPropertiesBackendTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/CustomPropertiesBackendTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php b/apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php
index 7510340aa573d..500191044d620 100644
--- a/apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/DirectoryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/DummyGetResponsePluginTest.php b/apps/dav/tests/unit/Connector/Sabre/DummyGetResponsePluginTest.php
index 03c31dc47f817..945696ffdc345 100644
--- a/apps/dav/tests/unit/Connector/Sabre/DummyGetResponsePluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/DummyGetResponsePluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/Exception/ForbiddenTest.php b/apps/dav/tests/unit/Connector/Sabre/Exception/ForbiddenTest.php
index c7fb6066ed41b..a8c9e20fdf5f4 100644
--- a/apps/dav/tests/unit/Connector/Sabre/Exception/ForbiddenTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/Exception/ForbiddenTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/Exception/InvalidPathTest.php b/apps/dav/tests/unit/Connector/Sabre/Exception/InvalidPathTest.php
index 98921d735fa2d..66bdcd0ba88ec 100644
--- a/apps/dav/tests/unit/Connector/Sabre/Exception/InvalidPathTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/Exception/InvalidPathTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/ExceptionLoggerPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/ExceptionLoggerPluginTest.php
index 1d50fb2fb9a1a..86b0f08608929 100644
--- a/apps/dav/tests/unit/Connector/Sabre/ExceptionLoggerPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/ExceptionLoggerPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/FakeLockerPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/FakeLockerPluginTest.php
index 18165b79cb266..41d20b8c2e82e 100644
--- a/apps/dav/tests/unit/Connector/Sabre/FakeLockerPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/FakeLockerPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/FileTest.php b/apps/dav/tests/unit/Connector/Sabre/FileTest.php
index ef02f14537533..cffe2317abaf8 100644
--- a/apps/dav/tests/unit/Connector/Sabre/FileTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/FileTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/FilesPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/FilesPluginTest.php
index db07165ebf086..a0a32e2e43898 100644
--- a/apps/dav/tests/unit/Connector/Sabre/FilesPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/FilesPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
index 8b169dcd46fe7..0c8da644de953 100644
--- a/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/FilesReportPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/MaintenancePluginTest.php b/apps/dav/tests/unit/Connector/Sabre/MaintenancePluginTest.php
index 9ecc49222e939..147badc75307f 100644
--- a/apps/dav/tests/unit/Connector/Sabre/MaintenancePluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/MaintenancePluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/NodeTest.php b/apps/dav/tests/unit/Connector/Sabre/NodeTest.php
index 04cd60fbdaa01..25f773c1d2524 100644
--- a/apps/dav/tests/unit/Connector/Sabre/NodeTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/NodeTest.php
@@ -1,11 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\Tests\unit\Connector\Sabre;
 
 use OC\Files\FileInfo;
diff --git a/apps/dav/tests/unit/Connector/Sabre/ObjectTreeTest.php b/apps/dav/tests/unit/Connector/Sabre/ObjectTreeTest.php
index 393f3c72c205b..41ba47fd61450 100644
--- a/apps/dav/tests/unit/Connector/Sabre/ObjectTreeTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/ObjectTreeTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/PrincipalTest.php b/apps/dav/tests/unit/Connector/Sabre/PrincipalTest.php
index 30e2c995d1811..929e1cad39647 100644
--- a/apps/dav/tests/unit/Connector/Sabre/PrincipalTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/PrincipalTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/PublicAuthTest.php b/apps/dav/tests/unit/Connector/Sabre/PublicAuthTest.php
index 00bddf2e69cd4..6f9911d1c5ca8 100644
--- a/apps/dav/tests/unit/Connector/Sabre/PublicAuthTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/PublicAuthTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/QuotaPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/QuotaPluginTest.php
index c370e0fb0f762..add70c703e29f 100644
--- a/apps/dav/tests/unit/Connector/Sabre/QuotaPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/QuotaPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2013-2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/Auth.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/Auth.php
index df48cd611148b..535e83249c8d0 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/Auth.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/Auth.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/DeleteTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/DeleteTest.php
index e7f20fbadfac6..834d99b84787d 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/DeleteTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/DeleteTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/DownloadTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/DownloadTest.php
index bec4cd9967b6e..9a527768983ff 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/DownloadTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/DownloadTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionMasterKeyUploadTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionMasterKeyUploadTest.php
index cbaa0c3101b57..58c5ad279be07 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionMasterKeyUploadTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionMasterKeyUploadTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionUploadTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionUploadTest.php
index f830c54fd0d29..f42279770c678 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionUploadTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/EncryptionUploadTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/ExceptionPlugin.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/ExceptionPlugin.php
index b1e68f9597b22..ce93cca71825e 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/ExceptionPlugin.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/ExceptionPlugin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/PartFileInRootUploadTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/PartFileInRootUploadTest.php
index 11a44f26942cb..bfc430f20880b 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/PartFileInRootUploadTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/PartFileInRootUploadTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/RequestTestCase.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/RequestTestCase.php
index 4085bc93c7854..b63b5f7a74eb4 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/RequestTestCase.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/RequestTestCase.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/Sapi.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/Sapi.php
index f12c93468ff4a..33492cf02cc42 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/Sapi.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/Sapi.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/RequestTest/UploadTest.php b/apps/dav/tests/unit/Connector/Sabre/RequestTest/UploadTest.php
index 60decd4c8461e..a209f9f1c71c4 100644
--- a/apps/dav/tests/unit/Connector/Sabre/RequestTest/UploadTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/RequestTest/UploadTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/SharesPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/SharesPluginTest.php
index 97d3ba7904664..2665064fc0c65 100644
--- a/apps/dav/tests/unit/Connector/Sabre/SharesPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/SharesPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Connector/Sabre/TagsPluginTest.php b/apps/dav/tests/unit/Connector/Sabre/TagsPluginTest.php
index bdab8135b1c52..e3d9b6df0499d 100644
--- a/apps/dav/tests/unit/Connector/Sabre/TagsPluginTest.php
+++ b/apps/dav/tests/unit/Connector/Sabre/TagsPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2014-2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Controller/BirthdayCalendarControllerTest.php b/apps/dav/tests/unit/Controller/BirthdayCalendarControllerTest.php
index c7c2bf0e43168..c4b77dc6e80a4 100644
--- a/apps/dav/tests/unit/Controller/BirthdayCalendarControllerTest.php
+++ b/apps/dav/tests/unit/Controller/BirthdayCalendarControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/DAV/AnonymousOptionsTest.php b/apps/dav/tests/unit/DAV/AnonymousOptionsTest.php
index ea5450391e8ca..66705a7648641 100644
--- a/apps/dav/tests/unit/DAV/AnonymousOptionsTest.php
+++ b/apps/dav/tests/unit/DAV/AnonymousOptionsTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/DAV/CustomPropertiesBackendTest.php b/apps/dav/tests/unit/DAV/CustomPropertiesBackendTest.php
index 6fc87437fe058..c0b9d13b04927 100644
--- a/apps/dav/tests/unit/DAV/CustomPropertiesBackendTest.php
+++ b/apps/dav/tests/unit/DAV/CustomPropertiesBackendTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/DAV/ErrorPagePluginTest.php b/apps/dav/tests/unit/DAV/ErrorPagePluginTest.php
index a3569f34bd76c..a07821f440025 100644
--- a/apps/dav/tests/unit/DAV/ErrorPagePluginTest.php
+++ b/apps/dav/tests/unit/DAV/ErrorPagePluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/DAV/GroupPrincipalTest.php b/apps/dav/tests/unit/DAV/GroupPrincipalTest.php
index bfc4c5b24930b..906e21368e2ff 100644
--- a/apps/dav/tests/unit/DAV/GroupPrincipalTest.php
+++ b/apps/dav/tests/unit/DAV/GroupPrincipalTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/DAV/HookManagerTest.php b/apps/dav/tests/unit/DAV/HookManagerTest.php
index 746727cd2b337..452e71f6cc527 100644
--- a/apps/dav/tests/unit/DAV/HookManagerTest.php
+++ b/apps/dav/tests/unit/DAV/HookManagerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/DAV/Sharing/PluginTest.php b/apps/dav/tests/unit/DAV/Sharing/PluginTest.php
index 9c6950f19e818..133a6a141fc05 100644
--- a/apps/dav/tests/unit/DAV/Sharing/PluginTest.php
+++ b/apps/dav/tests/unit/DAV/Sharing/PluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/DAV/SystemPrincipalBackendTest.php b/apps/dav/tests/unit/DAV/SystemPrincipalBackendTest.php
index 329168040808d..be496db18de3f 100644
--- a/apps/dav/tests/unit/DAV/SystemPrincipalBackendTest.php
+++ b/apps/dav/tests/unit/DAV/SystemPrincipalBackendTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/DAV/ViewOnlyPluginTest.php b/apps/dav/tests/unit/DAV/ViewOnlyPluginTest.php
index 7a4828dd2de53..d8c66981ba2a9 100644
--- a/apps/dav/tests/unit/DAV/ViewOnlyPluginTest.php
+++ b/apps/dav/tests/unit/DAV/ViewOnlyPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2019 ownCloud GmbH
diff --git a/apps/dav/tests/unit/Files/FileSearchBackendTest.php b/apps/dav/tests/unit/Files/FileSearchBackendTest.php
index f6fe8b1c1160a..5813f1d987974 100644
--- a/apps/dav/tests/unit/Files/FileSearchBackendTest.php
+++ b/apps/dav/tests/unit/Files/FileSearchBackendTest.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\DAV\Tests\Files;
 
 use OC\Files\Search\SearchComparison;
diff --git a/apps/dav/tests/unit/Files/MultipartRequestParserTest.php b/apps/dav/tests/unit/Files/MultipartRequestParserTest.php
index e6325ab8ad1e0..827753757efc6 100644
--- a/apps/dav/tests/unit/Files/MultipartRequestParserTest.php
+++ b/apps/dav/tests/unit/Files/MultipartRequestParserTest.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\DAV\Tests\unit\DAV;
 
 use OCA\DAV\BulkUpload\MultipartRequestParser;
diff --git a/apps/dav/tests/unit/Files/Sharing/FilesDropPluginTest.php b/apps/dav/tests/unit/Files/Sharing/FilesDropPluginTest.php
index 7264119f8c688..251e0aba517f8 100644
--- a/apps/dav/tests/unit/Files/Sharing/FilesDropPluginTest.php
+++ b/apps/dav/tests/unit/Files/Sharing/FilesDropPluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/Migration/CalDAVRemoveEmptyValueTest.php b/apps/dav/tests/unit/Migration/CalDAVRemoveEmptyValueTest.php
index 1cebf199d2903..3ee32551a211a 100644
--- a/apps/dav/tests/unit/Migration/CalDAVRemoveEmptyValueTest.php
+++ b/apps/dav/tests/unit/Migration/CalDAVRemoveEmptyValueTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/Migration/RefreshWebcalJobRegistrarTest.php b/apps/dav/tests/unit/Migration/RefreshWebcalJobRegistrarTest.php
index bf4c60b3cf11d..8ae0db9b95688 100644
--- a/apps/dav/tests/unit/Migration/RefreshWebcalJobRegistrarTest.php
+++ b/apps/dav/tests/unit/Migration/RefreshWebcalJobRegistrarTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/Migration/RegenerateBirthdayCalendarsTest.php b/apps/dav/tests/unit/Migration/RegenerateBirthdayCalendarsTest.php
index e2ac45526d2a7..8dde7d32921dc 100644
--- a/apps/dav/tests/unit/Migration/RegenerateBirthdayCalendarsTest.php
+++ b/apps/dav/tests/unit/Migration/RegenerateBirthdayCalendarsTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/Provisioning/Apple/AppleProvisioningNodeTest.php b/apps/dav/tests/unit/Provisioning/Apple/AppleProvisioningNodeTest.php
index 0979aff8a81b8..0a9d626aec4a2 100644
--- a/apps/dav/tests/unit/Provisioning/Apple/AppleProvisioningNodeTest.php
+++ b/apps/dav/tests/unit/Provisioning/Apple/AppleProvisioningNodeTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/Provisioning/Apple/AppleProvisioningPluginTest.php b/apps/dav/tests/unit/Provisioning/Apple/AppleProvisioningPluginTest.php
index dbb399ea7a6a6..ccd439d0389af 100644
--- a/apps/dav/tests/unit/Provisioning/Apple/AppleProvisioningPluginTest.php
+++ b/apps/dav/tests/unit/Provisioning/Apple/AppleProvisioningPluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/ServerTest.php b/apps/dav/tests/unit/ServerTest.php
index 16e0a5b80aa06..2c7c4eb3aa28a 100644
--- a/apps/dav/tests/unit/ServerTest.php
+++ b/apps/dav/tests/unit/ServerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Settings/CalDAVSettingsTest.php b/apps/dav/tests/unit/Settings/CalDAVSettingsTest.php
index 9f2d2582884b8..6c30d756615fc 100644
--- a/apps/dav/tests/unit/Settings/CalDAVSettingsTest.php
+++ b/apps/dav/tests/unit/Settings/CalDAVSettingsTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagMappingNodeTest.php b/apps/dav/tests/unit/SystemTag/SystemTagMappingNodeTest.php
index ed830685b7a8a..9788e6da7c6fc 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagMappingNodeTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagMappingNodeTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagNodeTest.php b/apps/dav/tests/unit/SystemTag/SystemTagNodeTest.php
index fd2bb4510216c..2a8b95bcb3be5 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagNodeTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagNodeTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagPluginTest.php b/apps/dav/tests/unit/SystemTag/SystemTagPluginTest.php
index e1517eec42534..759a54b433f9e 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagPluginTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagsByIdCollectionTest.php b/apps/dav/tests/unit/SystemTag/SystemTagsByIdCollectionTest.php
index 57e2454f06ce7..78473865e0d79 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagsByIdCollectionTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagsByIdCollectionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagsObjectMappingCollectionTest.php b/apps/dav/tests/unit/SystemTag/SystemTagsObjectMappingCollectionTest.php
index 66052847f162d..07d1c21d25b4b 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagsObjectMappingCollectionTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagsObjectMappingCollectionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/SystemTag/SystemTagsObjectTypeCollectionTest.php b/apps/dav/tests/unit/SystemTag/SystemTagsObjectTypeCollectionTest.php
index ba9304d33fcce..fac7ee68fc86d 100644
--- a/apps/dav/tests/unit/SystemTag/SystemTagsObjectTypeCollectionTest.php
+++ b/apps/dav/tests/unit/SystemTag/SystemTagsObjectTypeCollectionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Upload/AssemblyStreamTest.php b/apps/dav/tests/unit/Upload/AssemblyStreamTest.php
index 51c53fb262f25..bc3bcb0fe374e 100644
--- a/apps/dav/tests/unit/Upload/AssemblyStreamTest.php
+++ b/apps/dav/tests/unit/Upload/AssemblyStreamTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/Upload/ChunkingPluginTest.php b/apps/dav/tests/unit/Upload/ChunkingPluginTest.php
index 87feebf5d09db..bbb8620dd1863 100644
--- a/apps/dav/tests/unit/Upload/ChunkingPluginTest.php
+++ b/apps/dav/tests/unit/Upload/ChunkingPluginTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2017 ownCloud GmbH
diff --git a/apps/dav/tests/unit/Upload/FutureFileTest.php b/apps/dav/tests/unit/Upload/FutureFileTest.php
index 750670992eb87..9c23a217af07e 100644
--- a/apps/dav/tests/unit/Upload/FutureFileTest.php
+++ b/apps/dav/tests/unit/Upload/FutureFileTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/dav/tests/unit/bootstrap.php b/apps/dav/tests/unit/bootstrap.php
index 886a7f0b859f2..4e8650d8e42c4 100644
--- a/apps/dav/tests/unit/bootstrap.php
+++ b/apps/dav/tests/unit/bootstrap.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/AppInfo/Application.php b/apps/encryption/lib/AppInfo/Application.php
index 600bc30079714..117b49166f5bf 100644
--- a/apps/encryption/lib/AppInfo/Application.php
+++ b/apps/encryption/lib/AppInfo/Application.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Command/DisableMasterKey.php b/apps/encryption/lib/Command/DisableMasterKey.php
index 1912d09728d01..02368e514ccac 100644
--- a/apps/encryption/lib/Command/DisableMasterKey.php
+++ b/apps/encryption/lib/Command/DisableMasterKey.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/encryption/lib/Command/EnableMasterKey.php b/apps/encryption/lib/Command/EnableMasterKey.php
index 0d8b893e0e288..d5d9fe5681172 100644
--- a/apps/encryption/lib/Command/EnableMasterKey.php
+++ b/apps/encryption/lib/Command/EnableMasterKey.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Command/FixEncryptedVersion.php b/apps/encryption/lib/Command/FixEncryptedVersion.php
index 6635bb6cba95e..1b82cf30a8122 100644
--- a/apps/encryption/lib/Command/FixEncryptedVersion.php
+++ b/apps/encryption/lib/Command/FixEncryptedVersion.php
@@ -1,11 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2019 ownCloud GmbH
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Encryption\Command;
 
 use OC\Files\Storage\Wrapper\Encryption;
diff --git a/apps/encryption/lib/Command/RecoverUser.php b/apps/encryption/lib/Command/RecoverUser.php
index aea90f158f679..787bd65b8afcf 100644
--- a/apps/encryption/lib/Command/RecoverUser.php
+++ b/apps/encryption/lib/Command/RecoverUser.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/encryption/lib/Controller/RecoveryController.php b/apps/encryption/lib/Controller/RecoveryController.php
index d75406e6319d6..094a9b177bc9f 100644
--- a/apps/encryption/lib/Controller/RecoveryController.php
+++ b/apps/encryption/lib/Controller/RecoveryController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Controller/SettingsController.php b/apps/encryption/lib/Controller/SettingsController.php
index 8548ea51c043f..ba2f28cab20cd 100644
--- a/apps/encryption/lib/Controller/SettingsController.php
+++ b/apps/encryption/lib/Controller/SettingsController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Controller/StatusController.php b/apps/encryption/lib/Controller/StatusController.php
index 341ad6bc49f15..2a12d0772530e 100644
--- a/apps/encryption/lib/Controller/StatusController.php
+++ b/apps/encryption/lib/Controller/StatusController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Crypto/Crypt.php b/apps/encryption/lib/Crypto/Crypt.php
index 463ca4e22bb21..65df041655e81 100644
--- a/apps/encryption/lib/Crypto/Crypt.php
+++ b/apps/encryption/lib/Crypto/Crypt.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Crypto/DecryptAll.php b/apps/encryption/lib/Crypto/DecryptAll.php
index 362f43b86723c..7bde51698d6b4 100644
--- a/apps/encryption/lib/Crypto/DecryptAll.php
+++ b/apps/encryption/lib/Crypto/DecryptAll.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Crypto/EncryptAll.php b/apps/encryption/lib/Crypto/EncryptAll.php
index 6dfa36e6e3dd7..3d2b5a9d3387e 100644
--- a/apps/encryption/lib/Crypto/EncryptAll.php
+++ b/apps/encryption/lib/Crypto/EncryptAll.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Crypto/Encryption.php b/apps/encryption/lib/Crypto/Encryption.php
index 68bc7df808d9a..28d57b4cd3658 100644
--- a/apps/encryption/lib/Crypto/Encryption.php
+++ b/apps/encryption/lib/Crypto/Encryption.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Exceptions/MultiKeyDecryptException.php b/apps/encryption/lib/Exceptions/MultiKeyDecryptException.php
index 1246d51190bb9..77cef173f32af 100644
--- a/apps/encryption/lib/Exceptions/MultiKeyDecryptException.php
+++ b/apps/encryption/lib/Exceptions/MultiKeyDecryptException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Exceptions/MultiKeyEncryptException.php b/apps/encryption/lib/Exceptions/MultiKeyEncryptException.php
index 60394af45c273..b3eb441d7fcf6 100644
--- a/apps/encryption/lib/Exceptions/MultiKeyEncryptException.php
+++ b/apps/encryption/lib/Exceptions/MultiKeyEncryptException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Exceptions/PrivateKeyMissingException.php b/apps/encryption/lib/Exceptions/PrivateKeyMissingException.php
index 15fe8f4e72f68..784ba0b088504 100644
--- a/apps/encryption/lib/Exceptions/PrivateKeyMissingException.php
+++ b/apps/encryption/lib/Exceptions/PrivateKeyMissingException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Exceptions/PublicKeyMissingException.php b/apps/encryption/lib/Exceptions/PublicKeyMissingException.php
index 78eeeccf47d1e..41209106fa334 100644
--- a/apps/encryption/lib/Exceptions/PublicKeyMissingException.php
+++ b/apps/encryption/lib/Exceptions/PublicKeyMissingException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/KeyManager.php b/apps/encryption/lib/KeyManager.php
index f694e6550f1f7..ab24627eabb23 100644
--- a/apps/encryption/lib/KeyManager.php
+++ b/apps/encryption/lib/KeyManager.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Migration/SetMasterKeyStatus.php b/apps/encryption/lib/Migration/SetMasterKeyStatus.php
index 9619435129663..549f90eceba79 100644
--- a/apps/encryption/lib/Migration/SetMasterKeyStatus.php
+++ b/apps/encryption/lib/Migration/SetMasterKeyStatus.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/encryption/lib/Recovery.php b/apps/encryption/lib/Recovery.php
index 38e78f5e8224c..38dbe65f56dfe 100644
--- a/apps/encryption/lib/Recovery.php
+++ b/apps/encryption/lib/Recovery.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Session.php b/apps/encryption/lib/Session.php
index e2731d9611dc9..09cc26cdfc2f2 100644
--- a/apps/encryption/lib/Session.php
+++ b/apps/encryption/lib/Session.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Settings/Admin.php b/apps/encryption/lib/Settings/Admin.php
index e8290b778ada2..5e942f33e78ad 100644
--- a/apps/encryption/lib/Settings/Admin.php
+++ b/apps/encryption/lib/Settings/Admin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/encryption/lib/Settings/Personal.php b/apps/encryption/lib/Settings/Personal.php
index 63e50ccc07870..df84ddb1fc998 100644
--- a/apps/encryption/lib/Settings/Personal.php
+++ b/apps/encryption/lib/Settings/Personal.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/encryption/lib/Users/Setup.php b/apps/encryption/lib/Users/Setup.php
index f2189d6dab25a..978e5d8fa035b 100644
--- a/apps/encryption/lib/Users/Setup.php
+++ b/apps/encryption/lib/Users/Setup.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/lib/Util.php b/apps/encryption/lib/Util.php
index 20b2c0e580451..2ac306f270072 100644
--- a/apps/encryption/lib/Util.php
+++ b/apps/encryption/lib/Util.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/templates/settings-admin.php b/apps/encryption/templates/settings-admin.php
index 6d06f28ffe7a4..593d19637c0ea 100644
--- a/apps/encryption/templates/settings-admin.php
+++ b/apps/encryption/templates/settings-admin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/templates/settings-personal.php b/apps/encryption/templates/settings-personal.php
index 5aa227e7354f5..fb63fa3e09a36 100644
--- a/apps/encryption/templates/settings-personal.php
+++ b/apps/encryption/templates/settings-personal.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Command/FixEncryptedVersionTest.php b/apps/encryption/tests/Command/FixEncryptedVersionTest.php
index e5079b9a8afb8..8cc33ab6d2163 100644
--- a/apps/encryption/tests/Command/FixEncryptedVersionTest.php
+++ b/apps/encryption/tests/Command/FixEncryptedVersionTest.php
@@ -1,11 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2019 ownCloud GmbH
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Encryption\Tests\Command;
 
 use OC\Files\View;
diff --git a/apps/encryption/tests/Command/TestEnableMasterKey.php b/apps/encryption/tests/Command/TestEnableMasterKey.php
index c4678b778bc07..744bbaed6f8ea 100644
--- a/apps/encryption/tests/Command/TestEnableMasterKey.php
+++ b/apps/encryption/tests/Command/TestEnableMasterKey.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Controller/RecoveryControllerTest.php b/apps/encryption/tests/Controller/RecoveryControllerTest.php
index 9de583b387c75..03802fb6f13f3 100644
--- a/apps/encryption/tests/Controller/RecoveryControllerTest.php
+++ b/apps/encryption/tests/Controller/RecoveryControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Controller/SettingsControllerTest.php b/apps/encryption/tests/Controller/SettingsControllerTest.php
index b676d57164f27..36bf8b555c291 100644
--- a/apps/encryption/tests/Controller/SettingsControllerTest.php
+++ b/apps/encryption/tests/Controller/SettingsControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Controller/StatusControllerTest.php b/apps/encryption/tests/Controller/StatusControllerTest.php
index fbe44f52fb789..72c364ee03f6f 100644
--- a/apps/encryption/tests/Controller/StatusControllerTest.php
+++ b/apps/encryption/tests/Controller/StatusControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Crypto/CryptTest.php b/apps/encryption/tests/Crypto/CryptTest.php
index 74afc6d44a1ab..a2ec5167709b9 100644
--- a/apps/encryption/tests/Crypto/CryptTest.php
+++ b/apps/encryption/tests/Crypto/CryptTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Crypto/DecryptAllTest.php b/apps/encryption/tests/Crypto/DecryptAllTest.php
index 0d8543153ef2e..6de208828dd92 100644
--- a/apps/encryption/tests/Crypto/DecryptAllTest.php
+++ b/apps/encryption/tests/Crypto/DecryptAllTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Crypto/EncryptAllTest.php b/apps/encryption/tests/Crypto/EncryptAllTest.php
index d702c123b9b4d..b190968f1fe9e 100644
--- a/apps/encryption/tests/Crypto/EncryptAllTest.php
+++ b/apps/encryption/tests/Crypto/EncryptAllTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Crypto/EncryptionTest.php b/apps/encryption/tests/Crypto/EncryptionTest.php
index 7f3d9d1f348c4..6ae1bfee06583 100644
--- a/apps/encryption/tests/Crypto/EncryptionTest.php
+++ b/apps/encryption/tests/Crypto/EncryptionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/KeyManagerTest.php b/apps/encryption/tests/KeyManagerTest.php
index 8f5c9a78faf3a..f22379d272aba 100644
--- a/apps/encryption/tests/KeyManagerTest.php
+++ b/apps/encryption/tests/KeyManagerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/RecoveryTest.php b/apps/encryption/tests/RecoveryTest.php
index 17ad385eca001..0627724a8568f 100644
--- a/apps/encryption/tests/RecoveryTest.php
+++ b/apps/encryption/tests/RecoveryTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/SessionTest.php b/apps/encryption/tests/SessionTest.php
index 3072bc6ef3bc2..438be5c12068e 100644
--- a/apps/encryption/tests/SessionTest.php
+++ b/apps/encryption/tests/SessionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/Settings/AdminTest.php b/apps/encryption/tests/Settings/AdminTest.php
index 4ddaeb1b84dd9..6e182ad41a5fb 100644
--- a/apps/encryption/tests/Settings/AdminTest.php
+++ b/apps/encryption/tests/Settings/AdminTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/encryption/tests/Users/SetupTest.php b/apps/encryption/tests/Users/SetupTest.php
index 7a6beaf359498..97242d2f83023 100644
--- a/apps/encryption/tests/Users/SetupTest.php
+++ b/apps/encryption/tests/Users/SetupTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/encryption/tests/UtilTest.php b/apps/encryption/tests/UtilTest.php
index 711564af5bddf..4c36e5aafdf9d 100644
--- a/apps/encryption/tests/UtilTest.php
+++ b/apps/encryption/tests/UtilTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/appinfo/routes.php b/apps/federatedfilesharing/appinfo/routes.php
index 93becd2517bbd..944509a51c4bc 100644
--- a/apps/federatedfilesharing/appinfo/routes.php
+++ b/apps/federatedfilesharing/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federatedfilesharing/lib/AddressHandler.php b/apps/federatedfilesharing/lib/AddressHandler.php
index d21516c698c5f..263d4ab3484a6 100644
--- a/apps/federatedfilesharing/lib/AddressHandler.php
+++ b/apps/federatedfilesharing/lib/AddressHandler.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/lib/AppInfo/Application.php b/apps/federatedfilesharing/lib/AppInfo/Application.php
index fda75c475b69f..af6ed6cce8ad6 100644
--- a/apps/federatedfilesharing/lib/AppInfo/Application.php
+++ b/apps/federatedfilesharing/lib/AppInfo/Application.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/lib/BackgroundJob/RetryJob.php b/apps/federatedfilesharing/lib/BackgroundJob/RetryJob.php
index 9d66cd7181241..1331ce281c389 100644
--- a/apps/federatedfilesharing/lib/BackgroundJob/RetryJob.php
+++ b/apps/federatedfilesharing/lib/BackgroundJob/RetryJob.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/lib/Controller/MountPublicLinkController.php b/apps/federatedfilesharing/lib/Controller/MountPublicLinkController.php
index 0cfc3dba262a2..52eff8fa38331 100644
--- a/apps/federatedfilesharing/lib/Controller/MountPublicLinkController.php
+++ b/apps/federatedfilesharing/lib/Controller/MountPublicLinkController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php b/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php
index 222c6490b83c0..ae9740053d5df 100644
--- a/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php
+++ b/apps/federatedfilesharing/lib/Controller/RequestHandlerController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/lib/FederatedShareProvider.php b/apps/federatedfilesharing/lib/FederatedShareProvider.php
index 11e78f5cb97f6..c64f1f2d8f8a1 100644
--- a/apps/federatedfilesharing/lib/FederatedShareProvider.php
+++ b/apps/federatedfilesharing/lib/FederatedShareProvider.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/lib/Notifications.php b/apps/federatedfilesharing/lib/Notifications.php
index 3c97177358788..bae1568271d60 100644
--- a/apps/federatedfilesharing/lib/Notifications.php
+++ b/apps/federatedfilesharing/lib/Notifications.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/lib/Notifier.php b/apps/federatedfilesharing/lib/Notifier.php
index 10b57c578a2e7..5627f1613c0a5 100644
--- a/apps/federatedfilesharing/lib/Notifier.php
+++ b/apps/federatedfilesharing/lib/Notifier.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/lib/OCM/CloudFederationProviderFiles.php b/apps/federatedfilesharing/lib/OCM/CloudFederationProviderFiles.php
index 7e07703f43042..c233baa4f322e 100644
--- a/apps/federatedfilesharing/lib/OCM/CloudFederationProviderFiles.php
+++ b/apps/federatedfilesharing/lib/OCM/CloudFederationProviderFiles.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federatedfilesharing/lib/Settings/Admin.php b/apps/federatedfilesharing/lib/Settings/Admin.php
index 1343513e65ae1..e7111152ae431 100644
--- a/apps/federatedfilesharing/lib/Settings/Admin.php
+++ b/apps/federatedfilesharing/lib/Settings/Admin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federatedfilesharing/lib/Settings/PersonalSection.php b/apps/federatedfilesharing/lib/Settings/PersonalSection.php
index 5ef1e180c31a7..c56795308cbfc 100644
--- a/apps/federatedfilesharing/lib/Settings/PersonalSection.php
+++ b/apps/federatedfilesharing/lib/Settings/PersonalSection.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federatedfilesharing/lib/TokenHandler.php b/apps/federatedfilesharing/lib/TokenHandler.php
index 0151d12f5d93c..f3fdaead8cd9e 100644
--- a/apps/federatedfilesharing/lib/TokenHandler.php
+++ b/apps/federatedfilesharing/lib/TokenHandler.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/templates/settings-admin.php b/apps/federatedfilesharing/templates/settings-admin.php
index 786dcdf2165cc..e565b6d2dbf67 100644
--- a/apps/federatedfilesharing/templates/settings-admin.php
+++ b/apps/federatedfilesharing/templates/settings-admin.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federatedfilesharing/templates/settings-personal.php b/apps/federatedfilesharing/templates/settings-personal.php
index dffd5712b7e7b..96d13eab64536 100644
--- a/apps/federatedfilesharing/templates/settings-personal.php
+++ b/apps/federatedfilesharing/templates/settings-personal.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federatedfilesharing/tests/AddressHandlerTest.php b/apps/federatedfilesharing/tests/AddressHandlerTest.php
index ffb34d965ceac..07fe8480a89a3 100644
--- a/apps/federatedfilesharing/tests/AddressHandlerTest.php
+++ b/apps/federatedfilesharing/tests/AddressHandlerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/tests/Controller/MountPublicLinkControllerTest.php b/apps/federatedfilesharing/tests/Controller/MountPublicLinkControllerTest.php
index 8222f25bb49de..a07987afbb080 100644
--- a/apps/federatedfilesharing/tests/Controller/MountPublicLinkControllerTest.php
+++ b/apps/federatedfilesharing/tests/Controller/MountPublicLinkControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/tests/Controller/RequestHandlerControllerTest.php b/apps/federatedfilesharing/tests/Controller/RequestHandlerControllerTest.php
index c4c45c1aca5ae..44edc15fe67b8 100644
--- a/apps/federatedfilesharing/tests/Controller/RequestHandlerControllerTest.php
+++ b/apps/federatedfilesharing/tests/Controller/RequestHandlerControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/tests/FederatedShareProviderTest.php b/apps/federatedfilesharing/tests/FederatedShareProviderTest.php
index 77e10b7a61a5d..edd90b0c6bcc5 100644
--- a/apps/federatedfilesharing/tests/FederatedShareProviderTest.php
+++ b/apps/federatedfilesharing/tests/FederatedShareProviderTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/tests/NotificationsTest.php b/apps/federatedfilesharing/tests/NotificationsTest.php
index 7ac4e964362c0..aa88193424b52 100644
--- a/apps/federatedfilesharing/tests/NotificationsTest.php
+++ b/apps/federatedfilesharing/tests/NotificationsTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/tests/Settings/AdminTest.php b/apps/federatedfilesharing/tests/Settings/AdminTest.php
index d821eee55b039..f95dc328482ea 100644
--- a/apps/federatedfilesharing/tests/Settings/AdminTest.php
+++ b/apps/federatedfilesharing/tests/Settings/AdminTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federatedfilesharing/tests/TestCase.php b/apps/federatedfilesharing/tests/TestCase.php
index a53025c5a6258..3cb0d70fe2904 100644
--- a/apps/federatedfilesharing/tests/TestCase.php
+++ b/apps/federatedfilesharing/tests/TestCase.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federatedfilesharing/tests/TokenHandlerTest.php b/apps/federatedfilesharing/tests/TokenHandlerTest.php
index 9ed2077985747..6cff476451a0e 100644
--- a/apps/federatedfilesharing/tests/TokenHandlerTest.php
+++ b/apps/federatedfilesharing/tests/TokenHandlerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/appinfo/routes.php b/apps/federation/appinfo/routes.php
index 7ab9f84edd5b8..7c577da99be27 100644
--- a/apps/federation/appinfo/routes.php
+++ b/apps/federation/appinfo/routes.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/AppInfo/Application.php b/apps/federation/lib/AppInfo/Application.php
index c750392116452..5d0ed24f9b007 100644
--- a/apps/federation/lib/AppInfo/Application.php
+++ b/apps/federation/lib/AppInfo/Application.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/BackgroundJob/GetSharedSecret.php b/apps/federation/lib/BackgroundJob/GetSharedSecret.php
index 8574f1f9000e4..077a41dac2a8d 100644
--- a/apps/federation/lib/BackgroundJob/GetSharedSecret.php
+++ b/apps/federation/lib/BackgroundJob/GetSharedSecret.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/Command/SyncFederationAddressBooks.php b/apps/federation/lib/Command/SyncFederationAddressBooks.php
index 36cb99473f761..0325d875969dc 100644
--- a/apps/federation/lib/Command/SyncFederationAddressBooks.php
+++ b/apps/federation/lib/Command/SyncFederationAddressBooks.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/Controller/OCSAuthAPIController.php b/apps/federation/lib/Controller/OCSAuthAPIController.php
index 0aa3f8bd148cd..f6ea8b200132c 100644
--- a/apps/federation/lib/Controller/OCSAuthAPIController.php
+++ b/apps/federation/lib/Controller/OCSAuthAPIController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/Controller/SettingsController.php b/apps/federation/lib/Controller/SettingsController.php
index 83e97e524152c..16a90f50f2eea 100644
--- a/apps/federation/lib/Controller/SettingsController.php
+++ b/apps/federation/lib/Controller/SettingsController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/DAV/FedAuth.php b/apps/federation/lib/DAV/FedAuth.php
index 45bf422c10407..cb98695256492 100644
--- a/apps/federation/lib/DAV/FedAuth.php
+++ b/apps/federation/lib/DAV/FedAuth.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/DbHandler.php b/apps/federation/lib/DbHandler.php
index 877663b058a3e..8fd29c417792d 100644
--- a/apps/federation/lib/DbHandler.php
+++ b/apps/federation/lib/DbHandler.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors*
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/Middleware/AddServerMiddleware.php b/apps/federation/lib/Middleware/AddServerMiddleware.php
index 0e38dd8e7004d..ca425623a8193 100644
--- a/apps/federation/lib/Middleware/AddServerMiddleware.php
+++ b/apps/federation/lib/Middleware/AddServerMiddleware.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/Settings/Admin.php b/apps/federation/lib/Settings/Admin.php
index f9630c4b557f4..acc82dfb6da2e 100644
--- a/apps/federation/lib/Settings/Admin.php
+++ b/apps/federation/lib/Settings/Admin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federation/lib/SyncFederationAddressBooks.php b/apps/federation/lib/SyncFederationAddressBooks.php
index 05144b40879bf..511780421464e 100644
--- a/apps/federation/lib/SyncFederationAddressBooks.php
+++ b/apps/federation/lib/SyncFederationAddressBooks.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/SyncJob.php b/apps/federation/lib/SyncJob.php
index 21f8318f6f989..45a5156d7e8a1 100644
--- a/apps/federation/lib/SyncJob.php
+++ b/apps/federation/lib/SyncJob.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/lib/TrustedServers.php b/apps/federation/lib/TrustedServers.php
index 4b8ff5726c357..64a78077299d5 100644
--- a/apps/federation/lib/TrustedServers.php
+++ b/apps/federation/lib/TrustedServers.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/templates/settings-admin.php b/apps/federation/templates/settings-admin.php
index dabd341ce72da..42c366a86fbda 100644
--- a/apps/federation/templates/settings-admin.php
+++ b/apps/federation/templates/settings-admin.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2015-2016 ownCloud, Inc.
diff --git a/apps/federation/tests/BackgroundJob/GetSharedSecretTest.php b/apps/federation/tests/BackgroundJob/GetSharedSecretTest.php
index 4fcb579d6f9a4..80c02bf83071e 100644
--- a/apps/federation/tests/BackgroundJob/GetSharedSecretTest.php
+++ b/apps/federation/tests/BackgroundJob/GetSharedSecretTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/tests/BackgroundJob/RequestSharedSecretTest.php b/apps/federation/tests/BackgroundJob/RequestSharedSecretTest.php
index 63b8324ad2e79..c10dfe366e151 100644
--- a/apps/federation/tests/BackgroundJob/RequestSharedSecretTest.php
+++ b/apps/federation/tests/BackgroundJob/RequestSharedSecretTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/tests/Controller/OCSAuthAPIControllerTest.php b/apps/federation/tests/Controller/OCSAuthAPIControllerTest.php
index 9f2d41a10724c..7dd7039f8a290 100644
--- a/apps/federation/tests/Controller/OCSAuthAPIControllerTest.php
+++ b/apps/federation/tests/Controller/OCSAuthAPIControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/tests/Controller/SettingsControllerTest.php b/apps/federation/tests/Controller/SettingsControllerTest.php
index a2969b510ad09..62d7ad05fde09 100644
--- a/apps/federation/tests/Controller/SettingsControllerTest.php
+++ b/apps/federation/tests/Controller/SettingsControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/tests/DAV/FedAuthTest.php b/apps/federation/tests/DAV/FedAuthTest.php
index d059fff04812d..46902cad832ed 100644
--- a/apps/federation/tests/DAV/FedAuthTest.php
+++ b/apps/federation/tests/DAV/FedAuthTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/tests/DbHandlerTest.php b/apps/federation/tests/DbHandlerTest.php
index aabbf1472e77c..45423a178d998 100644
--- a/apps/federation/tests/DbHandlerTest.php
+++ b/apps/federation/tests/DbHandlerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/tests/Middleware/AddServerMiddlewareTest.php b/apps/federation/tests/Middleware/AddServerMiddlewareTest.php
index 0ad619f8114d1..d82f5b16f1697 100644
--- a/apps/federation/tests/Middleware/AddServerMiddlewareTest.php
+++ b/apps/federation/tests/Middleware/AddServerMiddlewareTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/tests/Settings/AdminTest.php b/apps/federation/tests/Settings/AdminTest.php
index 3d58fae2d7b30..21e201d29eb00 100644
--- a/apps/federation/tests/Settings/AdminTest.php
+++ b/apps/federation/tests/Settings/AdminTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/federation/tests/SyncFederationAddressbooksTest.php b/apps/federation/tests/SyncFederationAddressbooksTest.php
index 39274a11ade1d..e65f27cdba24e 100644
--- a/apps/federation/tests/SyncFederationAddressbooksTest.php
+++ b/apps/federation/tests/SyncFederationAddressbooksTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/federation/tests/TrustedServersTest.php b/apps/federation/tests/TrustedServersTest.php
index c3f0368858bc3..d9ce6d258d080 100644
--- a/apps/federation/tests/TrustedServersTest.php
+++ b/apps/federation/tests/TrustedServersTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Activity/FavoriteProvider.php b/apps/files/lib/Activity/FavoriteProvider.php
index 84c509f493ff1..0a9ef330985bd 100644
--- a/apps/files/lib/Activity/FavoriteProvider.php
+++ b/apps/files/lib/Activity/FavoriteProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Activity/Filter/Favorites.php b/apps/files/lib/Activity/Filter/Favorites.php
index 6683f0bc44e0e..7ce2a2d7bfe17 100644
--- a/apps/files/lib/Activity/Filter/Favorites.php
+++ b/apps/files/lib/Activity/Filter/Favorites.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Activity/Filter/FileChanges.php b/apps/files/lib/Activity/Filter/FileChanges.php
index 215510147d620..b625f5461fe59 100644
--- a/apps/files/lib/Activity/Filter/FileChanges.php
+++ b/apps/files/lib/Activity/Filter/FileChanges.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Activity/Helper.php b/apps/files/lib/Activity/Helper.php
index 9b8ad9cd44203..83fc12d566189 100644
--- a/apps/files/lib/Activity/Helper.php
+++ b/apps/files/lib/Activity/Helper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Activity/Provider.php b/apps/files/lib/Activity/Provider.php
index 6788a5cbd0dab..4d7c88edf35f3 100644
--- a/apps/files/lib/Activity/Provider.php
+++ b/apps/files/lib/Activity/Provider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Activity/Settings/FavoriteAction.php b/apps/files/lib/Activity/Settings/FavoriteAction.php
index b572a9546e065..0da3232c4fb76 100644
--- a/apps/files/lib/Activity/Settings/FavoriteAction.php
+++ b/apps/files/lib/Activity/Settings/FavoriteAction.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Activity/Settings/FileChanged.php b/apps/files/lib/Activity/Settings/FileChanged.php
index 5af8745655061..f5f98dd30d3be 100644
--- a/apps/files/lib/Activity/Settings/FileChanged.php
+++ b/apps/files/lib/Activity/Settings/FileChanged.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Activity/Settings/FileFavoriteChanged.php b/apps/files/lib/Activity/Settings/FileFavoriteChanged.php
index e4ac572f3f323..52e0fcaeb769b 100644
--- a/apps/files/lib/Activity/Settings/FileFavoriteChanged.php
+++ b/apps/files/lib/Activity/Settings/FileFavoriteChanged.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/App.php b/apps/files/lib/App.php
index b6b0ffa6917f6..db0d6b296d230 100644
--- a/apps/files/lib/App.php
+++ b/apps/files/lib/App.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/BackgroundJob/CleanupFileLocks.php b/apps/files/lib/BackgroundJob/CleanupFileLocks.php
index a332c1434fcbe..2d5bf8158c2b2 100644
--- a/apps/files/lib/BackgroundJob/CleanupFileLocks.php
+++ b/apps/files/lib/BackgroundJob/CleanupFileLocks.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/BackgroundJob/DeleteOrphanedItems.php b/apps/files/lib/BackgroundJob/DeleteOrphanedItems.php
index b925974f24a43..9e69cce8a175f 100644
--- a/apps/files/lib/BackgroundJob/DeleteOrphanedItems.php
+++ b/apps/files/lib/BackgroundJob/DeleteOrphanedItems.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/BackgroundJob/ScanFiles.php b/apps/files/lib/BackgroundJob/ScanFiles.php
index 3a39382d0b4aa..aa55fcc63f500 100644
--- a/apps/files/lib/BackgroundJob/ScanFiles.php
+++ b/apps/files/lib/BackgroundJob/ScanFiles.php
@@ -1,11 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files\BackgroundJob;
 
 use OC\Files\Utils\Scanner;
diff --git a/apps/files/lib/Capabilities.php b/apps/files/lib/Capabilities.php
index d20d348a9f5df..a6d331277c327 100644
--- a/apps/files/lib/Capabilities.php
+++ b/apps/files/lib/Capabilities.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Command/DeleteOrphanedFiles.php b/apps/files/lib/Command/DeleteOrphanedFiles.php
index 966351e4da062..d2995714fba81 100644
--- a/apps/files/lib/Command/DeleteOrphanedFiles.php
+++ b/apps/files/lib/Command/DeleteOrphanedFiles.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Command/Scan.php b/apps/files/lib/Command/Scan.php
index cf1cb04b9afe3..d0f9767690b43 100644
--- a/apps/files/lib/Command/Scan.php
+++ b/apps/files/lib/Command/Scan.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Command/ScanAppData.php b/apps/files/lib/Command/ScanAppData.php
index 02f0977cba925..3187b7c1629f4 100644
--- a/apps/files/lib/Command/ScanAppData.php
+++ b/apps/files/lib/Command/ScanAppData.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Controller/ApiController.php b/apps/files/lib/Controller/ApiController.php
index 5ba325f1bf867..096183917cd5e 100644
--- a/apps/files/lib/Controller/ApiController.php
+++ b/apps/files/lib/Controller/ApiController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Controller/DirectEditingController.php b/apps/files/lib/Controller/DirectEditingController.php
index 63f29d3ba2a69..2ae72bfb00c35 100644
--- a/apps/files/lib/Controller/DirectEditingController.php
+++ b/apps/files/lib/Controller/DirectEditingController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Controller/DirectEditingViewController.php b/apps/files/lib/Controller/DirectEditingViewController.php
index 1d78e2af0e05c..a1479ceb31b14 100644
--- a/apps/files/lib/Controller/DirectEditingViewController.php
+++ b/apps/files/lib/Controller/DirectEditingViewController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Controller/ViewController.php b/apps/files/lib/Controller/ViewController.php
index 4dd9f4141e26c..de5694822aed7 100644
--- a/apps/files/lib/Controller/ViewController.php
+++ b/apps/files/lib/Controller/ViewController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Helper.php b/apps/files/lib/Helper.php
index ce33bbb80a6ab..29f75e4ed6e6c 100644
--- a/apps/files/lib/Helper.php
+++ b/apps/files/lib/Helper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Service/DirectEditingService.php b/apps/files/lib/Service/DirectEditingService.php
index 243ddebdc6773..8e0cad6e99f5d 100644
--- a/apps/files/lib/Service/DirectEditingService.php
+++ b/apps/files/lib/Service/DirectEditingService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Service/TagService.php b/apps/files/lib/Service/TagService.php
index 450cd79505d21..fef7485bb4fe5 100644
--- a/apps/files/lib/Service/TagService.php
+++ b/apps/files/lib/Service/TagService.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/lib/Service/UserConfig.php b/apps/files/lib/Service/UserConfig.php
index 0abcfb2a6add7..02d79a16910ad 100644
--- a/apps/files/lib/Service/UserConfig.php
+++ b/apps/files/lib/Service/UserConfig.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/lib/Service/ViewConfig.php b/apps/files/lib/Service/ViewConfig.php
index 348ce6596e57f..fed91764f70d1 100644
--- a/apps/files/lib/Service/ViewConfig.php
+++ b/apps/files/lib/Service/ViewConfig.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/templates/index.php b/apps/files/templates/index.php
index 9ba105e240dfc..7f74508bef272 100644
--- a/apps/files/templates/index.php
+++ b/apps/files/templates/index.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/templates/list.php b/apps/files/templates/list.php
index 3dbcf5ae348ab..e0fa77de316aa 100644
--- a/apps/files/templates/list.php
+++ b/apps/files/templates/list.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2014-2016 ownCloud, Inc.
diff --git a/apps/files/templates/settings-personal.php b/apps/files/templates/settings-personal.php
index 0ca3846d699c2..509d668d1db16 100644
--- a/apps/files/templates/settings-personal.php
+++ b/apps/files/templates/settings-personal.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/tests/Activity/Filter/GenericTest.php b/apps/files/tests/Activity/Filter/GenericTest.php
index 347bea0f64374..f9b678d043570 100644
--- a/apps/files/tests/Activity/Filter/GenericTest.php
+++ b/apps/files/tests/Activity/Filter/GenericTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/tests/Activity/ProviderTest.php b/apps/files/tests/Activity/ProviderTest.php
index 7803563a11c50..31ce0e3937ab6 100644
--- a/apps/files/tests/Activity/ProviderTest.php
+++ b/apps/files/tests/Activity/ProviderTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/tests/Activity/Setting/GenericTest.php b/apps/files/tests/Activity/Setting/GenericTest.php
index 1cce876cbcfac..e56cbf33aa281 100644
--- a/apps/files/tests/Activity/Setting/GenericTest.php
+++ b/apps/files/tests/Activity/Setting/GenericTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files/tests/BackgroundJob/DeleteOrphanedItemsJobTest.php b/apps/files/tests/BackgroundJob/DeleteOrphanedItemsJobTest.php
index 1ce2d7bd8f7a2..210f42c387f0a 100644
--- a/apps/files/tests/BackgroundJob/DeleteOrphanedItemsJobTest.php
+++ b/apps/files/tests/BackgroundJob/DeleteOrphanedItemsJobTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/tests/BackgroundJob/ScanFilesTest.php b/apps/files/tests/BackgroundJob/ScanFilesTest.php
index c535ddb808cd9..c3090017f0ec1 100644
--- a/apps/files/tests/BackgroundJob/ScanFilesTest.php
+++ b/apps/files/tests/BackgroundJob/ScanFilesTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/tests/Command/DeleteOrphanedFilesTest.php b/apps/files/tests/Command/DeleteOrphanedFilesTest.php
index e480f7b632ede..4c6974b7db447 100644
--- a/apps/files/tests/Command/DeleteOrphanedFilesTest.php
+++ b/apps/files/tests/Command/DeleteOrphanedFilesTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/tests/Controller/ApiControllerTest.php b/apps/files/tests/Controller/ApiControllerTest.php
index 2b1ba34f98ed4..77ff35a69179a 100644
--- a/apps/files/tests/Controller/ApiControllerTest.php
+++ b/apps/files/tests/Controller/ApiControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/tests/Controller/ViewControllerTest.php b/apps/files/tests/Controller/ViewControllerTest.php
index 0c0647cc415bf..c987b572177a9 100644
--- a/apps/files/tests/Controller/ViewControllerTest.php
+++ b/apps/files/tests/Controller/ViewControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files/tests/HelperTest.php b/apps/files/tests/HelperTest.php
index 27b1de1322f55..011dcbe1d6b0f 100644
--- a/apps/files/tests/HelperTest.php
+++ b/apps/files/tests/HelperTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use OC\Files\FileInfo;
 use OCA\Files\Helper;
 use OCP\ITagManager;
diff --git a/apps/files/tests/Service/TagServiceTest.php b/apps/files/tests/Service/TagServiceTest.php
index 50c8d586587cf..446439a38f54a 100644
--- a/apps/files/tests/Service/TagServiceTest.php
+++ b/apps/files/tests/Service/TagServiceTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/ajax/applicable.php b/apps/files_external/ajax/applicable.php
index c1b7748ad15d5..a21f61c7e8b82 100644
--- a/apps/files_external/ajax/applicable.php
+++ b/apps/files_external/ajax/applicable.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/ajax/oauth2.php b/apps/files_external/ajax/oauth2.php
index 9dd8ceec2d288..1a2fe2d344f90 100644
--- a/apps/files_external/ajax/oauth2.php
+++ b/apps/files_external/ajax/oauth2.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/appinfo/routes.php b/apps/files_external/appinfo/routes.php
index 18418cc19c356..588fc8a3f5ada 100644
--- a/apps/files_external/appinfo/routes.php
+++ b/apps/files_external/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/AppInfo/Application.php b/apps/files_external/lib/AppInfo/Application.php
index 761fc97b7aa2d..f9bd88a2db66e 100644
--- a/apps/files_external/lib/AppInfo/Application.php
+++ b/apps/files_external/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Applicable.php b/apps/files_external/lib/Command/Applicable.php
index ecb635c052a47..f12cb47e1d34e 100644
--- a/apps/files_external/lib/Command/Applicable.php
+++ b/apps/files_external/lib/Command/Applicable.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Backends.php b/apps/files_external/lib/Command/Backends.php
index c2d844dc78117..8d3cdfb497ff9 100644
--- a/apps/files_external/lib/Command/Backends.php
+++ b/apps/files_external/lib/Command/Backends.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Config.php b/apps/files_external/lib/Command/Config.php
index 0736749f6d981..e65c43e1ab3fb 100644
--- a/apps/files_external/lib/Command/Config.php
+++ b/apps/files_external/lib/Command/Config.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Create.php b/apps/files_external/lib/Command/Create.php
index 4396d2e2b13df..ac4f12bbe6f41 100644
--- a/apps/files_external/lib/Command/Create.php
+++ b/apps/files_external/lib/Command/Create.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Delete.php b/apps/files_external/lib/Command/Delete.php
index 3e6ccf751a88d..29f6f942b8ce9 100644
--- a/apps/files_external/lib/Command/Delete.php
+++ b/apps/files_external/lib/Command/Delete.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Export.php b/apps/files_external/lib/Command/Export.php
index 0735d94d89d60..ef8b894dafd36 100644
--- a/apps/files_external/lib/Command/Export.php
+++ b/apps/files_external/lib/Command/Export.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Import.php b/apps/files_external/lib/Command/Import.php
index bf36bf5d5c191..a4194e0f023de 100644
--- a/apps/files_external/lib/Command/Import.php
+++ b/apps/files_external/lib/Command/Import.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/ListCommand.php b/apps/files_external/lib/Command/ListCommand.php
index 84c1b569e9dd3..0642f0d6d3e40 100644
--- a/apps/files_external/lib/Command/ListCommand.php
+++ b/apps/files_external/lib/Command/ListCommand.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Option.php b/apps/files_external/lib/Command/Option.php
index 6051c9c5fbdc5..8c57cfce0bd7d 100644
--- a/apps/files_external/lib/Command/Option.php
+++ b/apps/files_external/lib/Command/Option.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Command/Verify.php b/apps/files_external/lib/Command/Verify.php
index 32c94fc582a6d..dd609ce1a6e40 100644
--- a/apps/files_external/lib/Command/Verify.php
+++ b/apps/files_external/lib/Command/Verify.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Config/ConfigAdapter.php b/apps/files_external/lib/Config/ConfigAdapter.php
index c84fbb19102bd..2c162f33cc202 100644
--- a/apps/files_external/lib/Config/ConfigAdapter.php
+++ b/apps/files_external/lib/Config/ConfigAdapter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Config/ExternalMountPoint.php b/apps/files_external/lib/Config/ExternalMountPoint.php
index 0dc2eab5120ab..51c0f34ed725f 100644
--- a/apps/files_external/lib/Config/ExternalMountPoint.php
+++ b/apps/files_external/lib/Config/ExternalMountPoint.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Config/IConfigHandler.php b/apps/files_external/lib/Config/IConfigHandler.php
index 2f1604e232ba0..aa9709db60080 100644
--- a/apps/files_external/lib/Config/IConfigHandler.php
+++ b/apps/files_external/lib/Config/IConfigHandler.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Config/SimpleSubstitutionTrait.php b/apps/files_external/lib/Config/SimpleSubstitutionTrait.php
index 21269d7526ead..635ac5dc215f3 100644
--- a/apps/files_external/lib/Config/SimpleSubstitutionTrait.php
+++ b/apps/files_external/lib/Config/SimpleSubstitutionTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Config/UserContext.php b/apps/files_external/lib/Config/UserContext.php
index 6fe679c60b21a..cb01f173ed1ea 100644
--- a/apps/files_external/lib/Config/UserContext.php
+++ b/apps/files_external/lib/Config/UserContext.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Config/UserPlaceholderHandler.php b/apps/files_external/lib/Config/UserPlaceholderHandler.php
index ec91df5fb7a08..a6365ca114cec 100644
--- a/apps/files_external/lib/Config/UserPlaceholderHandler.php
+++ b/apps/files_external/lib/Config/UserPlaceholderHandler.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Controller/AjaxController.php b/apps/files_external/lib/Controller/AjaxController.php
index dfc5947ed77a4..cf06799ff5a96 100644
--- a/apps/files_external/lib/Controller/AjaxController.php
+++ b/apps/files_external/lib/Controller/AjaxController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Controller/GlobalStoragesController.php b/apps/files_external/lib/Controller/GlobalStoragesController.php
index 05cfd4684d8bd..344715576ac57 100644
--- a/apps/files_external/lib/Controller/GlobalStoragesController.php
+++ b/apps/files_external/lib/Controller/GlobalStoragesController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Controller/StoragesController.php b/apps/files_external/lib/Controller/StoragesController.php
index 9144b766d5d9d..b105c2a8994bf 100644
--- a/apps/files_external/lib/Controller/StoragesController.php
+++ b/apps/files_external/lib/Controller/StoragesController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Controller/UserGlobalStoragesController.php b/apps/files_external/lib/Controller/UserGlobalStoragesController.php
index 60159e1bc5420..8e59800b7423d 100644
--- a/apps/files_external/lib/Controller/UserGlobalStoragesController.php
+++ b/apps/files_external/lib/Controller/UserGlobalStoragesController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Controller/UserStoragesController.php b/apps/files_external/lib/Controller/UserStoragesController.php
index 0cd060b52948b..e550cf0f02dda 100644
--- a/apps/files_external/lib/Controller/UserStoragesController.php
+++ b/apps/files_external/lib/Controller/UserStoragesController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/AmazonS3/AccessKey.php b/apps/files_external/lib/Lib/Auth/AmazonS3/AccessKey.php
index 04019404a901e..cd03999f3cb17 100644
--- a/apps/files_external/lib/Lib/Auth/AmazonS3/AccessKey.php
+++ b/apps/files_external/lib/Lib/Auth/AmazonS3/AccessKey.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/AuthMechanism.php b/apps/files_external/lib/Lib/Auth/AuthMechanism.php
index ebdf768cda325..c2f9f94b4c685 100644
--- a/apps/files_external/lib/Lib/Auth/AuthMechanism.php
+++ b/apps/files_external/lib/Lib/Auth/AuthMechanism.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/Builtin.php b/apps/files_external/lib/Lib/Auth/Builtin.php
index cd4b8a22af438..1fb16c14dcc28 100644
--- a/apps/files_external/lib/Lib/Auth/Builtin.php
+++ b/apps/files_external/lib/Lib/Auth/Builtin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/IUserProvided.php b/apps/files_external/lib/Lib/Auth/IUserProvided.php
index 60f978f673de0..225c8c84d5fa8 100644
--- a/apps/files_external/lib/Lib/Auth/IUserProvided.php
+++ b/apps/files_external/lib/Lib/Auth/IUserProvided.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/files_external/lib/Lib/Auth/InvalidAuth.php b/apps/files_external/lib/Lib/Auth/InvalidAuth.php
index d5a6fdcbe5d83..0a6f7fcd14385 100644
--- a/apps/files_external/lib/Lib/Auth/InvalidAuth.php
+++ b/apps/files_external/lib/Lib/Auth/InvalidAuth.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
diff --git a/apps/files_external/lib/Lib/Auth/NullMechanism.php b/apps/files_external/lib/Lib/Auth/NullMechanism.php
index 7847c11141541..00f75822c6574 100644
--- a/apps/files_external/lib/Lib/Auth/NullMechanism.php
+++ b/apps/files_external/lib/Lib/Auth/NullMechanism.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/OAuth1/OAuth1.php b/apps/files_external/lib/Lib/Auth/OAuth1/OAuth1.php
index b215201b4f4de..811595c60255c 100644
--- a/apps/files_external/lib/Lib/Auth/OAuth1/OAuth1.php
+++ b/apps/files_external/lib/Lib/Auth/OAuth1/OAuth1.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/OAuth2/OAuth2.php b/apps/files_external/lib/Lib/Auth/OAuth2/OAuth2.php
index 6b41fef90d521..c2114c5795922 100644
--- a/apps/files_external/lib/Lib/Auth/OAuth2/OAuth2.php
+++ b/apps/files_external/lib/Lib/Auth/OAuth2/OAuth2.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/OpenStack/OpenStackV2.php b/apps/files_external/lib/Lib/Auth/OpenStack/OpenStackV2.php
index 3be4169831bbf..aa3dc14c42d37 100644
--- a/apps/files_external/lib/Lib/Auth/OpenStack/OpenStackV2.php
+++ b/apps/files_external/lib/Lib/Auth/OpenStack/OpenStackV2.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/OpenStack/Rackspace.php b/apps/files_external/lib/Lib/Auth/OpenStack/Rackspace.php
index a47d2ea0ca8df..d64f5f8dc5b23 100644
--- a/apps/files_external/lib/Lib/Auth/OpenStack/Rackspace.php
+++ b/apps/files_external/lib/Lib/Auth/OpenStack/Rackspace.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/Password/GlobalAuth.php b/apps/files_external/lib/Lib/Auth/Password/GlobalAuth.php
index ee23c28b99309..2f399d69f6be8 100644
--- a/apps/files_external/lib/Lib/Auth/Password/GlobalAuth.php
+++ b/apps/files_external/lib/Lib/Auth/Password/GlobalAuth.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2015 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/Password/LoginCredentials.php b/apps/files_external/lib/Lib/Auth/Password/LoginCredentials.php
index 176e1877d94cc..daa1e685e0fba 100644
--- a/apps/files_external/lib/Lib/Auth/Password/LoginCredentials.php
+++ b/apps/files_external/lib/Lib/Auth/Password/LoginCredentials.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2015 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/Password/Password.php b/apps/files_external/lib/Lib/Auth/Password/Password.php
index e339323384075..e3299e9366962 100644
--- a/apps/files_external/lib/Lib/Auth/Password/Password.php
+++ b/apps/files_external/lib/Lib/Auth/Password/Password.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/Password/SessionCredentials.php b/apps/files_external/lib/Lib/Auth/Password/SessionCredentials.php
index ced43ebf35719..217153766761b 100644
--- a/apps/files_external/lib/Lib/Auth/Password/SessionCredentials.php
+++ b/apps/files_external/lib/Lib/Auth/Password/SessionCredentials.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/Password/UserProvided.php b/apps/files_external/lib/Lib/Auth/Password/UserProvided.php
index 7f937cf14c16c..b61b9659211e6 100644
--- a/apps/files_external/lib/Lib/Auth/Password/UserProvided.php
+++ b/apps/files_external/lib/Lib/Auth/Password/UserProvided.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2015 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/PublicKey/RSA.php b/apps/files_external/lib/Lib/Auth/PublicKey/RSA.php
index 2371ce0a219dd..76b86cb25da4e 100644
--- a/apps/files_external/lib/Lib/Auth/PublicKey/RSA.php
+++ b/apps/files_external/lib/Lib/Auth/PublicKey/RSA.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Auth/PublicKey/RSAPrivateKey.php b/apps/files_external/lib/Lib/Auth/PublicKey/RSAPrivateKey.php
index 8c2e2f3d6ecfc..3e7073650d822 100644
--- a/apps/files_external/lib/Lib/Auth/PublicKey/RSAPrivateKey.php
+++ b/apps/files_external/lib/Lib/Auth/PublicKey/RSAPrivateKey.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Lib/Auth/SMB/KerberosApacheAuth.php b/apps/files_external/lib/Lib/Auth/SMB/KerberosApacheAuth.php
index 2667111029483..3eeec85ca130e 100644
--- a/apps/files_external/lib/Lib/Auth/SMB/KerberosApacheAuth.php
+++ b/apps/files_external/lib/Lib/Auth/SMB/KerberosApacheAuth.php
@@ -1,10 +1,11 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\Files_External\Lib\Auth\SMB;
 
 use OCA\Files_External\Lib\Auth\AuthMechanism;
diff --git a/apps/files_external/lib/Lib/Auth/SMB/KerberosAuth.php b/apps/files_external/lib/Lib/Auth/SMB/KerberosAuth.php
index e7a0884d1bd55..45b0b5825094d 100644
--- a/apps/files_external/lib/Lib/Auth/SMB/KerberosAuth.php
+++ b/apps/files_external/lib/Lib/Auth/SMB/KerberosAuth.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Lib/Backend/AmazonS3.php b/apps/files_external/lib/Lib/Backend/AmazonS3.php
index e345ed53f703a..f8ed1ee42f254 100644
--- a/apps/files_external/lib/Lib/Backend/AmazonS3.php
+++ b/apps/files_external/lib/Lib/Backend/AmazonS3.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/Backend.php b/apps/files_external/lib/Lib/Backend/Backend.php
index f965e246d4232..76f5aee70d9f6 100644
--- a/apps/files_external/lib/Lib/Backend/Backend.php
+++ b/apps/files_external/lib/Lib/Backend/Backend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/DAV.php b/apps/files_external/lib/Lib/Backend/DAV.php
index 9eb206f027293..7c393393be873 100644
--- a/apps/files_external/lib/Lib/Backend/DAV.php
+++ b/apps/files_external/lib/Lib/Backend/DAV.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/FTP.php b/apps/files_external/lib/Lib/Backend/FTP.php
index cdf7d187b4da3..ab276b871f89b 100644
--- a/apps/files_external/lib/Lib/Backend/FTP.php
+++ b/apps/files_external/lib/Lib/Backend/FTP.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/InvalidBackend.php b/apps/files_external/lib/Lib/Backend/InvalidBackend.php
index 6082d46bd6747..43a4d918510e6 100644
--- a/apps/files_external/lib/Lib/Backend/InvalidBackend.php
+++ b/apps/files_external/lib/Lib/Backend/InvalidBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
diff --git a/apps/files_external/lib/Lib/Backend/LegacyBackend.php b/apps/files_external/lib/Lib/Backend/LegacyBackend.php
index 11396913fbd42..17c3903cdbec5 100644
--- a/apps/files_external/lib/Lib/Backend/LegacyBackend.php
+++ b/apps/files_external/lib/Lib/Backend/LegacyBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/Local.php b/apps/files_external/lib/Lib/Backend/Local.php
index 2902ba770c6e3..59ab6c3ae6898 100644
--- a/apps/files_external/lib/Lib/Backend/Local.php
+++ b/apps/files_external/lib/Lib/Backend/Local.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/OwnCloud.php b/apps/files_external/lib/Lib/Backend/OwnCloud.php
index c0bd689186434..fe2cb990a1fb7 100644
--- a/apps/files_external/lib/Lib/Backend/OwnCloud.php
+++ b/apps/files_external/lib/Lib/Backend/OwnCloud.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/SFTP.php b/apps/files_external/lib/Lib/Backend/SFTP.php
index 93a5d87a5ff15..fdc1d8aa4dbdd 100644
--- a/apps/files_external/lib/Lib/Backend/SFTP.php
+++ b/apps/files_external/lib/Lib/Backend/SFTP.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/SFTP_Key.php b/apps/files_external/lib/Lib/Backend/SFTP_Key.php
index a657dce66e548..49a2b9b941716 100644
--- a/apps/files_external/lib/Lib/Backend/SFTP_Key.php
+++ b/apps/files_external/lib/Lib/Backend/SFTP_Key.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/SMB.php b/apps/files_external/lib/Lib/Backend/SMB.php
index c4a68fea6e18e..d625ff6b086c2 100644
--- a/apps/files_external/lib/Lib/Backend/SMB.php
+++ b/apps/files_external/lib/Lib/Backend/SMB.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files_External\Lib\Backend;
 
 use Icewind\SMB\BasicAuth;
diff --git a/apps/files_external/lib/Lib/Backend/SMB_OC.php b/apps/files_external/lib/Lib/Backend/SMB_OC.php
index 55edec8a4640e..25e1b60254ae1 100644
--- a/apps/files_external/lib/Lib/Backend/SMB_OC.php
+++ b/apps/files_external/lib/Lib/Backend/SMB_OC.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Backend/Swift.php b/apps/files_external/lib/Lib/Backend/Swift.php
index 386604e6e1de4..452e7546ec2ca 100644
--- a/apps/files_external/lib/Lib/Backend/Swift.php
+++ b/apps/files_external/lib/Lib/Backend/Swift.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Config/IAuthMechanismProvider.php b/apps/files_external/lib/Lib/Config/IAuthMechanismProvider.php
index 1d0cc3cca78e5..c34c261ffd7e1 100644
--- a/apps/files_external/lib/Lib/Config/IAuthMechanismProvider.php
+++ b/apps/files_external/lib/Lib/Config/IAuthMechanismProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Config/IBackendProvider.php b/apps/files_external/lib/Lib/Config/IBackendProvider.php
index 3f66966950d7f..9a88ff84556cc 100644
--- a/apps/files_external/lib/Lib/Config/IBackendProvider.php
+++ b/apps/files_external/lib/Lib/Config/IBackendProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/DefinitionParameter.php b/apps/files_external/lib/Lib/DefinitionParameter.php
index 1e611edd1edd6..3a1b22bcbd398 100644
--- a/apps/files_external/lib/Lib/DefinitionParameter.php
+++ b/apps/files_external/lib/Lib/DefinitionParameter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/DependencyTrait.php b/apps/files_external/lib/Lib/DependencyTrait.php
index 1d11253212857..b62085dbe45ee 100644
--- a/apps/files_external/lib/Lib/DependencyTrait.php
+++ b/apps/files_external/lib/Lib/DependencyTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/FrontendDefinitionTrait.php b/apps/files_external/lib/Lib/FrontendDefinitionTrait.php
index 5602345fe89ed..307716c0e7530 100644
--- a/apps/files_external/lib/Lib/FrontendDefinitionTrait.php
+++ b/apps/files_external/lib/Lib/FrontendDefinitionTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/IFrontendDefinition.php b/apps/files_external/lib/Lib/IFrontendDefinition.php
index 0184d5f536cf2..7eb9a509c14ee 100644
--- a/apps/files_external/lib/Lib/IFrontendDefinition.php
+++ b/apps/files_external/lib/Lib/IFrontendDefinition.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Lib/IIdentifier.php b/apps/files_external/lib/Lib/IIdentifier.php
index df77d02b54236..e17b908a0b1bb 100644
--- a/apps/files_external/lib/Lib/IIdentifier.php
+++ b/apps/files_external/lib/Lib/IIdentifier.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Lib/IdentifierTrait.php b/apps/files_external/lib/Lib/IdentifierTrait.php
index ff7bb8a465ee3..d35355995a290 100644
--- a/apps/files_external/lib/Lib/IdentifierTrait.php
+++ b/apps/files_external/lib/Lib/IdentifierTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/InsufficientDataForMeaningfulAnswerException.php b/apps/files_external/lib/Lib/InsufficientDataForMeaningfulAnswerException.php
index b2400f4be28fb..43452cd4b1d66 100644
--- a/apps/files_external/lib/Lib/InsufficientDataForMeaningfulAnswerException.php
+++ b/apps/files_external/lib/Lib/InsufficientDataForMeaningfulAnswerException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/LegacyDependencyCheckPolyfill.php b/apps/files_external/lib/Lib/LegacyDependencyCheckPolyfill.php
index 313d4ae8cb256..ee13a0b396777 100644
--- a/apps/files_external/lib/Lib/LegacyDependencyCheckPolyfill.php
+++ b/apps/files_external/lib/Lib/LegacyDependencyCheckPolyfill.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/MissingDependency.php b/apps/files_external/lib/Lib/MissingDependency.php
index 5c2c6880f23d2..e22a4de4ea0f3 100644
--- a/apps/files_external/lib/Lib/MissingDependency.php
+++ b/apps/files_external/lib/Lib/MissingDependency.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Notify/SMBNotifyHandler.php b/apps/files_external/lib/Lib/Notify/SMBNotifyHandler.php
index deaf005e2c670..c20e6a2489efa 100644
--- a/apps/files_external/lib/Lib/Notify/SMBNotifyHandler.php
+++ b/apps/files_external/lib/Lib/Notify/SMBNotifyHandler.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Lib/PersonalMount.php b/apps/files_external/lib/Lib/PersonalMount.php
index 01daddd7e2a08..aaec1c2a168f5 100644
--- a/apps/files_external/lib/Lib/PersonalMount.php
+++ b/apps/files_external/lib/Lib/PersonalMount.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/PriorityTrait.php b/apps/files_external/lib/Lib/PriorityTrait.php
index fef308a56dd85..0bcd2354aa4ce 100644
--- a/apps/files_external/lib/Lib/PriorityTrait.php
+++ b/apps/files_external/lib/Lib/PriorityTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/SessionStorageWrapper.php b/apps/files_external/lib/Lib/SessionStorageWrapper.php
index 38e8690538664..0c05f96bc74f0 100644
--- a/apps/files_external/lib/Lib/SessionStorageWrapper.php
+++ b/apps/files_external/lib/Lib/SessionStorageWrapper.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Storage/AmazonS3.php b/apps/files_external/lib/Lib/Storage/AmazonS3.php
index 63f08dd413188..51c7591b45c17 100644
--- a/apps/files_external/lib/Lib/Storage/AmazonS3.php
+++ b/apps/files_external/lib/Lib/Storage/AmazonS3.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Storage/FTP.php b/apps/files_external/lib/Lib/Storage/FTP.php
index 142fa746184a3..4c5092c09b42e 100644
--- a/apps/files_external/lib/Lib/Storage/FTP.php
+++ b/apps/files_external/lib/Lib/Storage/FTP.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/files_external/lib/Lib/Storage/OwnCloud.php b/apps/files_external/lib/Lib/Storage/OwnCloud.php
index ff519c60e2dc7..03c59cb7a8290 100644
--- a/apps/files_external/lib/Lib/Storage/OwnCloud.php
+++ b/apps/files_external/lib/Lib/Storage/OwnCloud.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Storage/SFTP.php b/apps/files_external/lib/Lib/Storage/SFTP.php
index c430cc2b5fd9f..76af3e1060fd0 100644
--- a/apps/files_external/lib/Lib/Storage/SFTP.php
+++ b/apps/files_external/lib/Lib/Storage/SFTP.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/Storage/SMB.php b/apps/files_external/lib/Lib/Storage/SMB.php
index 0946a3d013527..04724b5d8973e 100644
--- a/apps/files_external/lib/Lib/Storage/SMB.php
+++ b/apps/files_external/lib/Lib/Storage/SMB.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files_External\Lib\Storage;
 
 use Icewind\SMB\ACL;
diff --git a/apps/files_external/lib/Lib/Storage/StreamWrapper.php b/apps/files_external/lib/Lib/Storage/StreamWrapper.php
index 0490acc98e15f..1d4786d0c465c 100644
--- a/apps/files_external/lib/Lib/Storage/StreamWrapper.php
+++ b/apps/files_external/lib/Lib/Storage/StreamWrapper.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/StorageConfig.php b/apps/files_external/lib/Lib/StorageConfig.php
index 12523937071b3..1bccfd2d74e41 100644
--- a/apps/files_external/lib/Lib/StorageConfig.php
+++ b/apps/files_external/lib/Lib/StorageConfig.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/StorageModifierTrait.php b/apps/files_external/lib/Lib/StorageModifierTrait.php
index 4b9264f4223d0..21ddd6bf82847 100644
--- a/apps/files_external/lib/Lib/StorageModifierTrait.php
+++ b/apps/files_external/lib/Lib/StorageModifierTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Lib/VisibilityTrait.php b/apps/files_external/lib/Lib/VisibilityTrait.php
index 63aa709b21c8d..6f057d9308a42 100644
--- a/apps/files_external/lib/Lib/VisibilityTrait.php
+++ b/apps/files_external/lib/Lib/VisibilityTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Migration/DummyUserSession.php b/apps/files_external/lib/Migration/DummyUserSession.php
index 3d9412bd75565..b25fbc629579b 100644
--- a/apps/files_external/lib/Migration/DummyUserSession.php
+++ b/apps/files_external/lib/Migration/DummyUserSession.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/MountConfig.php b/apps/files_external/lib/MountConfig.php
index ca14275ab1350..c9c498bf37fd1 100644
--- a/apps/files_external/lib/MountConfig.php
+++ b/apps/files_external/lib/MountConfig.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/NotFoundException.php b/apps/files_external/lib/NotFoundException.php
index 78fbda2a4b805..c4534be6c1923 100644
--- a/apps/files_external/lib/NotFoundException.php
+++ b/apps/files_external/lib/NotFoundException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Service/BackendService.php b/apps/files_external/lib/Service/BackendService.php
index e37a0ab464965..b2dcf4581eae5 100644
--- a/apps/files_external/lib/Service/BackendService.php
+++ b/apps/files_external/lib/Service/BackendService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Service/DBConfigService.php b/apps/files_external/lib/Service/DBConfigService.php
index 3820f6b0d96a2..511fd6e15d8c6 100644
--- a/apps/files_external/lib/Service/DBConfigService.php
+++ b/apps/files_external/lib/Service/DBConfigService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Service/GlobalStoragesService.php b/apps/files_external/lib/Service/GlobalStoragesService.php
index 92961d732287e..920a87d12cc7a 100644
--- a/apps/files_external/lib/Service/GlobalStoragesService.php
+++ b/apps/files_external/lib/Service/GlobalStoragesService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Service/ImportLegacyStoragesService.php b/apps/files_external/lib/Service/ImportLegacyStoragesService.php
index fe5e71c1a47ad..426561adbfcf7 100644
--- a/apps/files_external/lib/Service/ImportLegacyStoragesService.php
+++ b/apps/files_external/lib/Service/ImportLegacyStoragesService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/files_external/lib/Service/LegacyStoragesService.php b/apps/files_external/lib/Service/LegacyStoragesService.php
index 20a26a07e8b19..def98826258e8 100644
--- a/apps/files_external/lib/Service/LegacyStoragesService.php
+++ b/apps/files_external/lib/Service/LegacyStoragesService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Service/StoragesService.php b/apps/files_external/lib/Service/StoragesService.php
index 88b9cf78ec3cf..6289134e27876 100644
--- a/apps/files_external/lib/Service/StoragesService.php
+++ b/apps/files_external/lib/Service/StoragesService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Service/UserGlobalStoragesService.php b/apps/files_external/lib/Service/UserGlobalStoragesService.php
index 01bc91ef3ff51..acc31b2ba7db6 100644
--- a/apps/files_external/lib/Service/UserGlobalStoragesService.php
+++ b/apps/files_external/lib/Service/UserGlobalStoragesService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Service/UserStoragesService.php b/apps/files_external/lib/Service/UserStoragesService.php
index defa97451cd87..70918e8626491 100644
--- a/apps/files_external/lib/Service/UserStoragesService.php
+++ b/apps/files_external/lib/Service/UserStoragesService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Service/UserTrait.php b/apps/files_external/lib/Service/UserTrait.php
index 25713894e1ffb..b08ad560d451c 100644
--- a/apps/files_external/lib/Service/UserTrait.php
+++ b/apps/files_external/lib/Service/UserTrait.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/lib/Settings/Admin.php b/apps/files_external/lib/Settings/Admin.php
index 8476e87f3c600..621312128aeeb 100644
--- a/apps/files_external/lib/Settings/Admin.php
+++ b/apps/files_external/lib/Settings/Admin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Settings/Personal.php b/apps/files_external/lib/Settings/Personal.php
index f691c14270e1e..4ae5e2288136a 100644
--- a/apps/files_external/lib/Settings/Personal.php
+++ b/apps/files_external/lib/Settings/Personal.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Settings/PersonalSection.php b/apps/files_external/lib/Settings/PersonalSection.php
index df494edce2768..fce0e99a67c40 100644
--- a/apps/files_external/lib/Settings/PersonalSection.php
+++ b/apps/files_external/lib/Settings/PersonalSection.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/lib/Settings/Section.php b/apps/files_external/lib/Settings/Section.php
index 8bc0814bb67a1..2fca049d1522b 100644
--- a/apps/files_external/lib/Settings/Section.php
+++ b/apps/files_external/lib/Settings/Section.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/templates/settings.php b/apps/files_external/templates/settings.php
index 0ebb5800d29e0..be0f96580cb29 100644
--- a/apps/files_external/templates/settings.php
+++ b/apps/files_external/templates/settings.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2012-2016 ownCloud, Inc.
@@ -170,7 +172,7 @@ function writeParameterInput($parameter, $options, $classes = []) {
 								continue;
 							} // ignore deprecated backends?>
 							<option value="<?php p($backend->getIdentifier()); ?>"><?php p($backend->getText()); ?></option>
-						<?php endforeach; ?>
+<?php endforeach; ?>
 					</select>
 				</td>
 				<td class="authentication" data-mechanisms='<?php p(json_encode($_['authMechanisms'])); ?>'></td>
diff --git a/apps/files_external/tests/Auth/AuthMechanismTest.php b/apps/files_external/tests/Auth/AuthMechanismTest.php
index 682d2e1326fd2..d2990ee130e6a 100644
--- a/apps/files_external/tests/Auth/AuthMechanismTest.php
+++ b/apps/files_external/tests/Auth/AuthMechanismTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Auth/Password/GlobalAuth.php b/apps/files_external/tests/Auth/Password/GlobalAuth.php
index 998db198b53ef..0ddab9aea2879 100644
--- a/apps/files_external/tests/Auth/Password/GlobalAuth.php
+++ b/apps/files_external/tests/Auth/Password/GlobalAuth.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Backend/BackendTest.php b/apps/files_external/tests/Backend/BackendTest.php
index 26aa5ebe6af7c..0d4d217bb5465 100644
--- a/apps/files_external/tests/Backend/BackendTest.php
+++ b/apps/files_external/tests/Backend/BackendTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Backend/LegacyBackendTest.php b/apps/files_external/tests/Backend/LegacyBackendTest.php
index 303700c661102..7d96547b1af33 100644
--- a/apps/files_external/tests/Backend/LegacyBackendTest.php
+++ b/apps/files_external/tests/Backend/LegacyBackendTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Command/ApplicableTest.php b/apps/files_external/tests/Command/ApplicableTest.php
index 8854e4ad485f6..6753fa2a17f4a 100644
--- a/apps/files_external/tests/Command/ApplicableTest.php
+++ b/apps/files_external/tests/Command/ApplicableTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Command/CommandTest.php b/apps/files_external/tests/Command/CommandTest.php
index ed991fd784df0..a60e5fbddd2c1 100644
--- a/apps/files_external/tests/Command/CommandTest.php
+++ b/apps/files_external/tests/Command/CommandTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Command/ListCommandTest.php b/apps/files_external/tests/Command/ListCommandTest.php
index bd4430b41167b..b8b11fa7f5709 100644
--- a/apps/files_external/tests/Command/ListCommandTest.php
+++ b/apps/files_external/tests/Command/ListCommandTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Config/UserPlaceholderHandlerTest.php b/apps/files_external/tests/Config/UserPlaceholderHandlerTest.php
index b3c7db9306f22..0a6d1cf832f4c 100644
--- a/apps/files_external/tests/Config/UserPlaceholderHandlerTest.php
+++ b/apps/files_external/tests/Config/UserPlaceholderHandlerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/tests/Controller/AjaxControllerTest.php b/apps/files_external/tests/Controller/AjaxControllerTest.php
index dc9661732cc2a..8686913901557 100644
--- a/apps/files_external/tests/Controller/AjaxControllerTest.php
+++ b/apps/files_external/tests/Controller/AjaxControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/tests/Controller/GlobalStoragesControllerTest.php b/apps/files_external/tests/Controller/GlobalStoragesControllerTest.php
index 4c318951d1bb9..98237a0fc9fa7 100644
--- a/apps/files_external/tests/Controller/GlobalStoragesControllerTest.php
+++ b/apps/files_external/tests/Controller/GlobalStoragesControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Controller/StoragesControllerTest.php b/apps/files_external/tests/Controller/StoragesControllerTest.php
index 0d604ff2d47a4..c40255c6df555 100644
--- a/apps/files_external/tests/Controller/StoragesControllerTest.php
+++ b/apps/files_external/tests/Controller/StoragesControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Controller/UserStoragesControllerTest.php b/apps/files_external/tests/Controller/UserStoragesControllerTest.php
index c15ded48ea7cb..016cdbc5006a1 100644
--- a/apps/files_external/tests/Controller/UserStoragesControllerTest.php
+++ b/apps/files_external/tests/Controller/UserStoragesControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/DefinitionParameterTest.php b/apps/files_external/tests/DefinitionParameterTest.php
index 0b1d11bbf0cf2..f580767a87d58 100644
--- a/apps/files_external/tests/DefinitionParameterTest.php
+++ b/apps/files_external/tests/DefinitionParameterTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/FrontendDefinitionTraitTest.php b/apps/files_external/tests/FrontendDefinitionTraitTest.php
index bc5d88ff3f0f5..0d79e2c5a6e1e 100644
--- a/apps/files_external/tests/FrontendDefinitionTraitTest.php
+++ b/apps/files_external/tests/FrontendDefinitionTraitTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/LegacyDependencyCheckPolyfillTest.php b/apps/files_external/tests/LegacyDependencyCheckPolyfillTest.php
index 5fcfe1dd1e6c9..a3c050c555e5a 100644
--- a/apps/files_external/tests/LegacyDependencyCheckPolyfillTest.php
+++ b/apps/files_external/tests/LegacyDependencyCheckPolyfillTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/OwnCloudFunctionsTest.php b/apps/files_external/tests/OwnCloudFunctionsTest.php
index 3488195d3e87a..ac7c9c06c042a 100644
--- a/apps/files_external/tests/OwnCloudFunctionsTest.php
+++ b/apps/files_external/tests/OwnCloudFunctionsTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/PersonalMountTest.php b/apps/files_external/tests/PersonalMountTest.php
index b268d3b51428a..968510073e8fc 100644
--- a/apps/files_external/tests/PersonalMountTest.php
+++ b/apps/files_external/tests/PersonalMountTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Service/BackendServiceTest.php b/apps/files_external/tests/Service/BackendServiceTest.php
index e7644d8e5232e..a0a7c08a10646 100644
--- a/apps/files_external/tests/Service/BackendServiceTest.php
+++ b/apps/files_external/tests/Service/BackendServiceTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Service/DBConfigServiceTest.php b/apps/files_external/tests/Service/DBConfigServiceTest.php
index 968c166a50587..e8caf68e54b05 100644
--- a/apps/files_external/tests/Service/DBConfigServiceTest.php
+++ b/apps/files_external/tests/Service/DBConfigServiceTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Service/GlobalStoragesServiceTest.php b/apps/files_external/tests/Service/GlobalStoragesServiceTest.php
index b4907f7f00f8e..13278a0eb5820 100644
--- a/apps/files_external/tests/Service/GlobalStoragesServiceTest.php
+++ b/apps/files_external/tests/Service/GlobalStoragesServiceTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Service/StoragesServiceTest.php b/apps/files_external/tests/Service/StoragesServiceTest.php
index 797d4382ae90f..144334d0b8935 100644
--- a/apps/files_external/tests/Service/StoragesServiceTest.php
+++ b/apps/files_external/tests/Service/StoragesServiceTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Service/UserGlobalStoragesServiceTest.php b/apps/files_external/tests/Service/UserGlobalStoragesServiceTest.php
index 571664b32c8f0..1989fdeb64afc 100644
--- a/apps/files_external/tests/Service/UserGlobalStoragesServiceTest.php
+++ b/apps/files_external/tests/Service/UserGlobalStoragesServiceTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Service/UserStoragesServiceTest.php b/apps/files_external/tests/Service/UserStoragesServiceTest.php
index 7bf101ebfc4b3..9c3f362a38692 100644
--- a/apps/files_external/tests/Service/UserStoragesServiceTest.php
+++ b/apps/files_external/tests/Service/UserStoragesServiceTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Settings/AdminTest.php b/apps/files_external/tests/Settings/AdminTest.php
index aceb8d2e915bd..172ed799cd953 100644
--- a/apps/files_external/tests/Settings/AdminTest.php
+++ b/apps/files_external/tests/Settings/AdminTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/tests/Settings/SectionTest.php b/apps/files_external/tests/Settings/SectionTest.php
index 9154106ff8a84..5da737adec725 100644
--- a/apps/files_external/tests/Settings/SectionTest.php
+++ b/apps/files_external/tests/Settings/SectionTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/tests/Storage/Amazons3MultiPartTest.php b/apps/files_external/tests/Storage/Amazons3MultiPartTest.php
index 1ac18406d2417..cdbd939007f9b 100644
--- a/apps/files_external/tests/Storage/Amazons3MultiPartTest.php
+++ b/apps/files_external/tests/Storage/Amazons3MultiPartTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_external/tests/Storage/Amazons3Test.php b/apps/files_external/tests/Storage/Amazons3Test.php
index fd7fd9225c930..76e280d22005b 100644
--- a/apps/files_external/tests/Storage/Amazons3Test.php
+++ b/apps/files_external/tests/Storage/Amazons3Test.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Storage/FtpTest.php b/apps/files_external/tests/Storage/FtpTest.php
index c6a1d8f77ba79..02fc34aa67b37 100644
--- a/apps/files_external/tests/Storage/FtpTest.php
+++ b/apps/files_external/tests/Storage/FtpTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Storage/OwncloudTest.php b/apps/files_external/tests/Storage/OwncloudTest.php
index 28041a665f845..74e543726cc99 100644
--- a/apps/files_external/tests/Storage/OwncloudTest.php
+++ b/apps/files_external/tests/Storage/OwncloudTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Storage/SFTP_KeyTest.php b/apps/files_external/tests/Storage/SFTP_KeyTest.php
index 9be3cb7d3e841..a54e58daea130 100644
--- a/apps/files_external/tests/Storage/SFTP_KeyTest.php
+++ b/apps/files_external/tests/Storage/SFTP_KeyTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Storage/SftpTest.php b/apps/files_external/tests/Storage/SftpTest.php
index cc29486f4268b..5b266264ee95f 100644
--- a/apps/files_external/tests/Storage/SftpTest.php
+++ b/apps/files_external/tests/Storage/SftpTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Storage/SmbTest.php b/apps/files_external/tests/Storage/SmbTest.php
index d5a83905112f6..bb2cc9e044b42 100644
--- a/apps/files_external/tests/Storage/SmbTest.php
+++ b/apps/files_external/tests/Storage/SmbTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Storage/SwiftTest.php b/apps/files_external/tests/Storage/SwiftTest.php
index c21c8c6f5064b..0fe9472506385 100644
--- a/apps/files_external/tests/Storage/SwiftTest.php
+++ b/apps/files_external/tests/Storage/SwiftTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/Storage/WebdavTest.php b/apps/files_external/tests/Storage/WebdavTest.php
index 872f1b5d0e295..c93e910b61dfd 100644
--- a/apps/files_external/tests/Storage/WebdavTest.php
+++ b/apps/files_external/tests/Storage/WebdavTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/StorageConfigTest.php b/apps/files_external/tests/StorageConfigTest.php
index b67d69a3ce7cf..603ed3b81a559 100644
--- a/apps/files_external/tests/StorageConfigTest.php
+++ b/apps/files_external/tests/StorageConfigTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/config.php b/apps/files_external/tests/config.php
index 13fc0c2401e9b..286224be7a3d3 100644
--- a/apps/files_external/tests/config.php
+++ b/apps/files_external/tests/config.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2012-2016 ownCloud, Inc.
diff --git a/apps/files_external/tests/sso-setup/apps.config.php b/apps/files_external/tests/sso-setup/apps.config.php
index b3889956a5330..8480a4e390f1f 100644
--- a/apps/files_external/tests/sso-setup/apps.config.php
+++ b/apps/files_external/tests/sso-setup/apps.config.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/appinfo/routes.php b/apps/files_sharing/appinfo/routes.php
index 91f8271c143bb..0e13f9e1b7771 100644
--- a/apps/files_sharing/appinfo/routes.php
+++ b/apps/files_sharing/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Activity/Filter.php b/apps/files_sharing/lib/Activity/Filter.php
index 7dc2a46e70f79..6e1110e6f2958 100644
--- a/apps/files_sharing/lib/Activity/Filter.php
+++ b/apps/files_sharing/lib/Activity/Filter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Providers/Base.php b/apps/files_sharing/lib/Activity/Providers/Base.php
index 464cb336042d9..99c0d086a1ef5 100644
--- a/apps/files_sharing/lib/Activity/Providers/Base.php
+++ b/apps/files_sharing/lib/Activity/Providers/Base.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Providers/Downloads.php b/apps/files_sharing/lib/Activity/Providers/Downloads.php
index ac9522ef93b91..ef9aa4a0cddc8 100644
--- a/apps/files_sharing/lib/Activity/Providers/Downloads.php
+++ b/apps/files_sharing/lib/Activity/Providers/Downloads.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Providers/Groups.php b/apps/files_sharing/lib/Activity/Providers/Groups.php
index b64104739db45..04492d594a20c 100644
--- a/apps/files_sharing/lib/Activity/Providers/Groups.php
+++ b/apps/files_sharing/lib/Activity/Providers/Groups.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Providers/PublicLinks.php b/apps/files_sharing/lib/Activity/Providers/PublicLinks.php
index 6cf5c05d8741b..0c09fb341ca90 100644
--- a/apps/files_sharing/lib/Activity/Providers/PublicLinks.php
+++ b/apps/files_sharing/lib/Activity/Providers/PublicLinks.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Providers/RemoteShares.php b/apps/files_sharing/lib/Activity/Providers/RemoteShares.php
index 1971f935d303f..51ba9165edcdd 100644
--- a/apps/files_sharing/lib/Activity/Providers/RemoteShares.php
+++ b/apps/files_sharing/lib/Activity/Providers/RemoteShares.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Providers/Users.php b/apps/files_sharing/lib/Activity/Providers/Users.php
index 6c136d1f38357..6c25775a02738 100644
--- a/apps/files_sharing/lib/Activity/Providers/Users.php
+++ b/apps/files_sharing/lib/Activity/Providers/Users.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Settings/PublicLinks.php b/apps/files_sharing/lib/Activity/Settings/PublicLinks.php
index 12a543f1e7f32..3e6d7224a88d3 100644
--- a/apps/files_sharing/lib/Activity/Settings/PublicLinks.php
+++ b/apps/files_sharing/lib/Activity/Settings/PublicLinks.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Settings/PublicLinksUpload.php b/apps/files_sharing/lib/Activity/Settings/PublicLinksUpload.php
index bcdc4a4ff971d..1e75cb201024a 100644
--- a/apps/files_sharing/lib/Activity/Settings/PublicLinksUpload.php
+++ b/apps/files_sharing/lib/Activity/Settings/PublicLinksUpload.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Settings/RemoteShare.php b/apps/files_sharing/lib/Activity/Settings/RemoteShare.php
index 339e634638b20..c9666e3d7eaad 100644
--- a/apps/files_sharing/lib/Activity/Settings/RemoteShare.php
+++ b/apps/files_sharing/lib/Activity/Settings/RemoteShare.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Activity/Settings/Shared.php b/apps/files_sharing/lib/Activity/Settings/Shared.php
index 30b5e68b04c68..60f837efd5c11 100644
--- a/apps/files_sharing/lib/Activity/Settings/Shared.php
+++ b/apps/files_sharing/lib/Activity/Settings/Shared.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/AppInfo/Application.php b/apps/files_sharing/lib/AppInfo/Application.php
index 6c0d5ca078148..f5773a8a2a8fe 100644
--- a/apps/files_sharing/lib/AppInfo/Application.php
+++ b/apps/files_sharing/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Cache.php b/apps/files_sharing/lib/Cache.php
index 372dde198a0ab..07c5afbe4d01b 100644
--- a/apps/files_sharing/lib/Cache.php
+++ b/apps/files_sharing/lib/Cache.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Capabilities.php b/apps/files_sharing/lib/Capabilities.php
index 1f4219ed1a57d..0e88f7b89160f 100644
--- a/apps/files_sharing/lib/Capabilities.php
+++ b/apps/files_sharing/lib/Capabilities.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Collaboration/ShareRecipientSorter.php b/apps/files_sharing/lib/Collaboration/ShareRecipientSorter.php
index 993dba6488859..41eebc810c075 100644
--- a/apps/files_sharing/lib/Collaboration/ShareRecipientSorter.php
+++ b/apps/files_sharing/lib/Collaboration/ShareRecipientSorter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Command/CleanupRemoteStorages.php b/apps/files_sharing/lib/Command/CleanupRemoteStorages.php
index 7e21768afeed6..cb8e569a3312b 100644
--- a/apps/files_sharing/lib/Command/CleanupRemoteStorages.php
+++ b/apps/files_sharing/lib/Command/CleanupRemoteStorages.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
diff --git a/apps/files_sharing/lib/Controller/ExternalSharesController.php b/apps/files_sharing/lib/Controller/ExternalSharesController.php
index 70e9eb5c46514..a7a3b9ecd2c5e 100644
--- a/apps/files_sharing/lib/Controller/ExternalSharesController.php
+++ b/apps/files_sharing/lib/Controller/ExternalSharesController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Controller/PublicPreviewController.php b/apps/files_sharing/lib/Controller/PublicPreviewController.php
index 9678aa67888bc..211ccdf2407e1 100644
--- a/apps/files_sharing/lib/Controller/PublicPreviewController.php
+++ b/apps/files_sharing/lib/Controller/PublicPreviewController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Controller/RemoteController.php b/apps/files_sharing/lib/Controller/RemoteController.php
index cdac35e0d9ccb..1f3112ccd106e 100644
--- a/apps/files_sharing/lib/Controller/RemoteController.php
+++ b/apps/files_sharing/lib/Controller/RemoteController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Controller/ShareController.php b/apps/files_sharing/lib/Controller/ShareController.php
index 1c3c9534dde60..15c05ec124fd1 100644
--- a/apps/files_sharing/lib/Controller/ShareController.php
+++ b/apps/files_sharing/lib/Controller/ShareController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Controller/ShareInfoController.php b/apps/files_sharing/lib/Controller/ShareInfoController.php
index 05816a986f72f..3c6f6b13a2589 100644
--- a/apps/files_sharing/lib/Controller/ShareInfoController.php
+++ b/apps/files_sharing/lib/Controller/ShareInfoController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Exceptions/BrokenPath.php b/apps/files_sharing/lib/Exceptions/BrokenPath.php
index 11b3599d609d7..1bd0c9cc8ab66 100644
--- a/apps/files_sharing/lib/Exceptions/BrokenPath.php
+++ b/apps/files_sharing/lib/Exceptions/BrokenPath.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Exceptions/S2SException.php b/apps/files_sharing/lib/Exceptions/S2SException.php
index fb60b20774a4a..00c66a55655ef 100644
--- a/apps/files_sharing/lib/Exceptions/S2SException.php
+++ b/apps/files_sharing/lib/Exceptions/S2SException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/files_sharing/lib/Exceptions/SharingRightsException.php b/apps/files_sharing/lib/Exceptions/SharingRightsException.php
index 548873cfbfdfc..e1144bc6a1758 100644
--- a/apps/files_sharing/lib/Exceptions/SharingRightsException.php
+++ b/apps/files_sharing/lib/Exceptions/SharingRightsException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/ExpireSharesJob.php b/apps/files_sharing/lib/ExpireSharesJob.php
index 8ea6fee8a5c3f..1b8f172abd2ee 100644
--- a/apps/files_sharing/lib/ExpireSharesJob.php
+++ b/apps/files_sharing/lib/ExpireSharesJob.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/External/Cache.php b/apps/files_sharing/lib/External/Cache.php
index 3bf6d09e68195..1c7e710a90ffd 100644
--- a/apps/files_sharing/lib/External/Cache.php
+++ b/apps/files_sharing/lib/External/Cache.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/External/Manager.php b/apps/files_sharing/lib/External/Manager.php
index e0d7f96cb90eb..7bb253cff5252 100644
--- a/apps/files_sharing/lib/External/Manager.php
+++ b/apps/files_sharing/lib/External/Manager.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files_Sharing\External;
 
 use Doctrine\DBAL\Driver\Exception;
diff --git a/apps/files_sharing/lib/External/Mount.php b/apps/files_sharing/lib/External/Mount.php
index d7ab61e0364b5..2855021eb60ed 100644
--- a/apps/files_sharing/lib/External/Mount.php
+++ b/apps/files_sharing/lib/External/Mount.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/External/MountProvider.php b/apps/files_sharing/lib/External/MountProvider.php
index a29fdd2d54498..c4d6abfbde7a7 100644
--- a/apps/files_sharing/lib/External/MountProvider.php
+++ b/apps/files_sharing/lib/External/MountProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/External/Scanner.php b/apps/files_sharing/lib/External/Scanner.php
index d3b54e0f0f6fc..8e8fe344780d8 100644
--- a/apps/files_sharing/lib/External/Scanner.php
+++ b/apps/files_sharing/lib/External/Scanner.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/External/Watcher.php b/apps/files_sharing/lib/External/Watcher.php
index ccd6bd179b3c6..e8c8637905f31 100644
--- a/apps/files_sharing/lib/External/Watcher.php
+++ b/apps/files_sharing/lib/External/Watcher.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Helper.php b/apps/files_sharing/lib/Helper.php
index 1e5c5c8abe5c3..34e550cf54264 100644
--- a/apps/files_sharing/lib/Helper.php
+++ b/apps/files_sharing/lib/Helper.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Hooks.php b/apps/files_sharing/lib/Hooks.php
index 6a297f1e87589..e5df7f094ab09 100644
--- a/apps/files_sharing/lib/Hooks.php
+++ b/apps/files_sharing/lib/Hooks.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/ISharedStorage.php b/apps/files_sharing/lib/ISharedStorage.php
index dfd8b134db19f..e611f0d918fb4 100644
--- a/apps/files_sharing/lib/ISharedStorage.php
+++ b/apps/files_sharing/lib/ISharedStorage.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Middleware/OCSShareAPIMiddleware.php b/apps/files_sharing/lib/Middleware/OCSShareAPIMiddleware.php
index ad34a1d2ab999..7f458b2b53b2d 100644
--- a/apps/files_sharing/lib/Middleware/OCSShareAPIMiddleware.php
+++ b/apps/files_sharing/lib/Middleware/OCSShareAPIMiddleware.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Middleware/ShareInfoMiddleware.php b/apps/files_sharing/lib/Middleware/ShareInfoMiddleware.php
index 1f29e855eb587..e4ba2c88b1761 100644
--- a/apps/files_sharing/lib/Middleware/ShareInfoMiddleware.php
+++ b/apps/files_sharing/lib/Middleware/ShareInfoMiddleware.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Migration/OwncloudGuestShareType.php b/apps/files_sharing/lib/Migration/OwncloudGuestShareType.php
index c9511eaa136df..3c3cb27dde0e8 100644
--- a/apps/files_sharing/lib/Migration/OwncloudGuestShareType.php
+++ b/apps/files_sharing/lib/Migration/OwncloudGuestShareType.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/Migration/SetPasswordColumn.php b/apps/files_sharing/lib/Migration/SetPasswordColumn.php
index 647e3bef8d3f2..1302834a31004 100644
--- a/apps/files_sharing/lib/Migration/SetPasswordColumn.php
+++ b/apps/files_sharing/lib/Migration/SetPasswordColumn.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/lib/MountProvider.php b/apps/files_sharing/lib/MountProvider.php
index ad9498371d33c..ccaf4e6842987 100644
--- a/apps/files_sharing/lib/MountProvider.php
+++ b/apps/files_sharing/lib/MountProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Scanner.php b/apps/files_sharing/lib/Scanner.php
index d346d34cb03b1..3ceeae4da4966 100644
--- a/apps/files_sharing/lib/Scanner.php
+++ b/apps/files_sharing/lib/Scanner.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files_Sharing;
 
 use OC\Files\ObjectStore\ObjectStoreScanner;
diff --git a/apps/files_sharing/lib/ShareBackend/File.php b/apps/files_sharing/lib/ShareBackend/File.php
index 56a4aa47e604c..f3e1bf536694f 100644
--- a/apps/files_sharing/lib/ShareBackend/File.php
+++ b/apps/files_sharing/lib/ShareBackend/File.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/ShareBackend/Folder.php b/apps/files_sharing/lib/ShareBackend/Folder.php
index fefdd7f667ce8..5439671918dfa 100644
--- a/apps/files_sharing/lib/ShareBackend/Folder.php
+++ b/apps/files_sharing/lib/ShareBackend/Folder.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/SharedMount.php b/apps/files_sharing/lib/SharedMount.php
index 5f7e8f376f150..804dd11524e2b 100644
--- a/apps/files_sharing/lib/SharedMount.php
+++ b/apps/files_sharing/lib/SharedMount.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files_Sharing;
 
 use OC\Files\Filesystem;
diff --git a/apps/files_sharing/lib/SharedStorage.php b/apps/files_sharing/lib/SharedStorage.php
index 335b18d1cd8a8..4722c2a96ef32 100644
--- a/apps/files_sharing/lib/SharedStorage.php
+++ b/apps/files_sharing/lib/SharedStorage.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/Updater.php b/apps/files_sharing/lib/Updater.php
index 82075fb9ba5ca..463a24d22fcc7 100644
--- a/apps/files_sharing/lib/Updater.php
+++ b/apps/files_sharing/lib/Updater.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/lib/ViewOnly.php b/apps/files_sharing/lib/ViewOnly.php
index 9cd18f968f6e0..5fc085e0ab911 100644
--- a/apps/files_sharing/lib/ViewOnly.php
+++ b/apps/files_sharing/lib/ViewOnly.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2019 ownCloud GmbH
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files_Sharing;
 
 use OCP\Files\File;
diff --git a/apps/files_sharing/templates/public.php b/apps/files_sharing/templates/public.php
index 7620d309ff605..2af5ae4abecf0 100644
--- a/apps/files_sharing/templates/public.php
+++ b/apps/files_sharing/templates/public.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2012-2016 ownCloud, Inc.
diff --git a/apps/files_sharing/templates/sharenotfound.php b/apps/files_sharing/templates/sharenotfound.php
index fe653d4ad5abd..c22ce3b295dc7 100644
--- a/apps/files_sharing/templates/sharenotfound.php
+++ b/apps/files_sharing/templates/sharenotfound.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/files_sharing/tests/ApiTest.php b/apps/files_sharing/tests/ApiTest.php
index ec76186c56681..7158b3ba8a960 100644
--- a/apps/files_sharing/tests/ApiTest.php
+++ b/apps/files_sharing/tests/ApiTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/ApplicationTest.php b/apps/files_sharing/tests/ApplicationTest.php
index b1a635406b2a7..46e967c71cb9f 100644
--- a/apps/files_sharing/tests/ApplicationTest.php
+++ b/apps/files_sharing/tests/ApplicationTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/tests/CacheTest.php b/apps/files_sharing/tests/CacheTest.php
index 6813accd9be1f..0fc70855ae0e6 100644
--- a/apps/files_sharing/tests/CacheTest.php
+++ b/apps/files_sharing/tests/CacheTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/CapabilitiesTest.php b/apps/files_sharing/tests/CapabilitiesTest.php
index c188cbfdfcc86..d7c2db238b204 100644
--- a/apps/files_sharing/tests/CapabilitiesTest.php
+++ b/apps/files_sharing/tests/CapabilitiesTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/Collaboration/ShareRecipientSorterTest.php b/apps/files_sharing/tests/Collaboration/ShareRecipientSorterTest.php
index 2bef0b0e922fe..6303461353b4a 100644
--- a/apps/files_sharing/tests/Collaboration/ShareRecipientSorterTest.php
+++ b/apps/files_sharing/tests/Collaboration/ShareRecipientSorterTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/tests/Command/CleanupRemoteStoragesTest.php b/apps/files_sharing/tests/Command/CleanupRemoteStoragesTest.php
index 81e2de72ec12b..6124c955b474d 100644
--- a/apps/files_sharing/tests/Command/CleanupRemoteStoragesTest.php
+++ b/apps/files_sharing/tests/Command/CleanupRemoteStoragesTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
diff --git a/apps/files_sharing/tests/Controller/ExternalShareControllerTest.php b/apps/files_sharing/tests/Controller/ExternalShareControllerTest.php
index eac37a3f3a5a3..a916d0b16aebf 100644
--- a/apps/files_sharing/tests/Controller/ExternalShareControllerTest.php
+++ b/apps/files_sharing/tests/Controller/ExternalShareControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/Controller/PublicPreviewControllerTest.php b/apps/files_sharing/tests/Controller/PublicPreviewControllerTest.php
index 700406c97ba17..76bc0a86e1c34 100644
--- a/apps/files_sharing/tests/Controller/PublicPreviewControllerTest.php
+++ b/apps/files_sharing/tests/Controller/PublicPreviewControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php b/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
index aeba8cb9aea0a..8e67c37ae5eb3 100644
--- a/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
+++ b/apps/files_sharing/tests/Controller/ShareAPIControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/Controller/ShareControllerTest.php b/apps/files_sharing/tests/Controller/ShareControllerTest.php
index 5d962dff4c008..550c6abc5d732 100644
--- a/apps/files_sharing/tests/Controller/ShareControllerTest.php
+++ b/apps/files_sharing/tests/Controller/ShareControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/Controller/ShareInfoControllerTest.php b/apps/files_sharing/tests/Controller/ShareInfoControllerTest.php
index f2df74fd01b0a..5067321e8b19e 100644
--- a/apps/files_sharing/tests/Controller/ShareInfoControllerTest.php
+++ b/apps/files_sharing/tests/Controller/ShareInfoControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/tests/Controller/ShareesAPIControllerTest.php b/apps/files_sharing/tests/Controller/ShareesAPIControllerTest.php
index b3b395da8c059..4694197d8762f 100644
--- a/apps/files_sharing/tests/Controller/ShareesAPIControllerTest.php
+++ b/apps/files_sharing/tests/Controller/ShareesAPIControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/DeleteOrphanedSharesJobTest.php b/apps/files_sharing/tests/DeleteOrphanedSharesJobTest.php
index ad3caa2d3f80b..ed70d36259206 100644
--- a/apps/files_sharing/tests/DeleteOrphanedSharesJobTest.php
+++ b/apps/files_sharing/tests/DeleteOrphanedSharesJobTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/EncryptedSizePropagationTest.php b/apps/files_sharing/tests/EncryptedSizePropagationTest.php
index af2cf379358e3..57f9794685379 100644
--- a/apps/files_sharing/tests/EncryptedSizePropagationTest.php
+++ b/apps/files_sharing/tests/EncryptedSizePropagationTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/EtagPropagationTest.php b/apps/files_sharing/tests/EtagPropagationTest.php
index cca19e7afd966..9e52b629790a9 100644
--- a/apps/files_sharing/tests/EtagPropagationTest.php
+++ b/apps/files_sharing/tests/EtagPropagationTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/ExpireSharesJobTest.php b/apps/files_sharing/tests/ExpireSharesJobTest.php
index b0f78d12eed26..62a8dccc8dc34 100644
--- a/apps/files_sharing/tests/ExpireSharesJobTest.php
+++ b/apps/files_sharing/tests/ExpireSharesJobTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/External/CacheTest.php b/apps/files_sharing/tests/External/CacheTest.php
index 5a862d8ddc0df..d3302a2bbcb5f 100644
--- a/apps/files_sharing/tests/External/CacheTest.php
+++ b/apps/files_sharing/tests/External/CacheTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/External/ManagerTest.php b/apps/files_sharing/tests/External/ManagerTest.php
index 2bd0a1e14bfd3..5c8f5705c51b8 100644
--- a/apps/files_sharing/tests/External/ManagerTest.php
+++ b/apps/files_sharing/tests/External/ManagerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/External/ScannerTest.php b/apps/files_sharing/tests/External/ScannerTest.php
index 6241174fb2845..dd018b7b81d4d 100644
--- a/apps/files_sharing/tests/External/ScannerTest.php
+++ b/apps/files_sharing/tests/External/ScannerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/ExternalStorageTest.php b/apps/files_sharing/tests/ExternalStorageTest.php
index ef69e85d71b98..2a8dd7ef517b7 100644
--- a/apps/files_sharing/tests/ExternalStorageTest.php
+++ b/apps/files_sharing/tests/ExternalStorageTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/GroupEtagPropagationTest.php b/apps/files_sharing/tests/GroupEtagPropagationTest.php
index f2c747896976a..ce3290b1bbaf4 100644
--- a/apps/files_sharing/tests/GroupEtagPropagationTest.php
+++ b/apps/files_sharing/tests/GroupEtagPropagationTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/HelperTest.php b/apps/files_sharing/tests/HelperTest.php
index fcbfc41b603e5..198de45ae1ea2 100644
--- a/apps/files_sharing/tests/HelperTest.php
+++ b/apps/files_sharing/tests/HelperTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/LockingTest.php b/apps/files_sharing/tests/LockingTest.php
index 1e822d6339ea8..3ecfb5cfd9680 100644
--- a/apps/files_sharing/tests/LockingTest.php
+++ b/apps/files_sharing/tests/LockingTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/Middleware/OCSShareAPIMiddlewareTest.php b/apps/files_sharing/tests/Middleware/OCSShareAPIMiddlewareTest.php
index 30bae45f5208c..4b9d26b7ae94f 100644
--- a/apps/files_sharing/tests/Middleware/OCSShareAPIMiddlewareTest.php
+++ b/apps/files_sharing/tests/Middleware/OCSShareAPIMiddlewareTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/tests/Middleware/ShareInfoMiddlewareTest.php b/apps/files_sharing/tests/Middleware/ShareInfoMiddlewareTest.php
index 44ef3bebdc896..dd48110a49ef0 100644
--- a/apps/files_sharing/tests/Middleware/ShareInfoMiddlewareTest.php
+++ b/apps/files_sharing/tests/Middleware/ShareInfoMiddlewareTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_sharing/tests/Middleware/SharingCheckMiddlewareTest.php b/apps/files_sharing/tests/Middleware/SharingCheckMiddlewareTest.php
index 5b4f4de33d7dd..44e325fe15f34 100644
--- a/apps/files_sharing/tests/Middleware/SharingCheckMiddlewareTest.php
+++ b/apps/files_sharing/tests/Middleware/SharingCheckMiddlewareTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/Migration/SetPasswordColumnTest.php b/apps/files_sharing/tests/Migration/SetPasswordColumnTest.php
index 9e46232aa3960..8ac6f32e77ea9 100644
--- a/apps/files_sharing/tests/Migration/SetPasswordColumnTest.php
+++ b/apps/files_sharing/tests/Migration/SetPasswordColumnTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2017 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/MountProviderTest.php b/apps/files_sharing/tests/MountProviderTest.php
index 1f67bdd01fab3..029cdffd93561 100644
--- a/apps/files_sharing/tests/MountProviderTest.php
+++ b/apps/files_sharing/tests/MountProviderTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/PropagationTestCase.php b/apps/files_sharing/tests/PropagationTestCase.php
index 04852e53e2113..05441a2d82fc7 100644
--- a/apps/files_sharing/tests/PropagationTestCase.php
+++ b/apps/files_sharing/tests/PropagationTestCase.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/ShareTest.php b/apps/files_sharing/tests/ShareTest.php
index b79235676e27a..db3a5135a2c94 100644
--- a/apps/files_sharing/tests/ShareTest.php
+++ b/apps/files_sharing/tests/ShareTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/SharedMountTest.php b/apps/files_sharing/tests/SharedMountTest.php
index 241b708f07e0f..3903004b888b8 100644
--- a/apps/files_sharing/tests/SharedMountTest.php
+++ b/apps/files_sharing/tests/SharedMountTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/SharedStorageTest.php b/apps/files_sharing/tests/SharedStorageTest.php
index a91931501b421..9bd270a584e97 100644
--- a/apps/files_sharing/tests/SharedStorageTest.php
+++ b/apps/files_sharing/tests/SharedStorageTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/SizePropagationTest.php b/apps/files_sharing/tests/SizePropagationTest.php
index 2c6eda0fb8e20..813d1bf06bd22 100644
--- a/apps/files_sharing/tests/SizePropagationTest.php
+++ b/apps/files_sharing/tests/SizePropagationTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/TestCase.php b/apps/files_sharing/tests/TestCase.php
index d12a6bf0ec2c3..1179954e8e790 100644
--- a/apps/files_sharing/tests/TestCase.php
+++ b/apps/files_sharing/tests/TestCase.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/UnshareChildrenTest.php b/apps/files_sharing/tests/UnshareChildrenTest.php
index 61c4aa94213c5..ca5b194c1c993 100644
--- a/apps/files_sharing/tests/UnshareChildrenTest.php
+++ b/apps/files_sharing/tests/UnshareChildrenTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/UpdaterTest.php b/apps/files_sharing/tests/UpdaterTest.php
index 62dd731559199..e32afa1a7dffc 100644
--- a/apps/files_sharing/tests/UpdaterTest.php
+++ b/apps/files_sharing/tests/UpdaterTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_sharing/tests/WatcherTest.php b/apps/files_sharing/tests/WatcherTest.php
index 2d1568e6a3115..ba6e9b22b5b11 100644
--- a/apps/files_sharing/tests/WatcherTest.php
+++ b/apps/files_sharing/tests/WatcherTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/AppInfo/Application.php b/apps/files_trashbin/lib/AppInfo/Application.php
index 115e6e418b4e8..514a47684ac01 100644
--- a/apps/files_trashbin/lib/AppInfo/Application.php
+++ b/apps/files_trashbin/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/BackgroundJob/ExpireTrash.php b/apps/files_trashbin/lib/BackgroundJob/ExpireTrash.php
index 4e1c1b95fde51..6fb367186b523 100644
--- a/apps/files_trashbin/lib/BackgroundJob/ExpireTrash.php
+++ b/apps/files_trashbin/lib/BackgroundJob/ExpireTrash.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/Capabilities.php b/apps/files_trashbin/lib/Capabilities.php
index 863d3692fb632..09ff32bf97e45 100644
--- a/apps/files_trashbin/lib/Capabilities.php
+++ b/apps/files_trashbin/lib/Capabilities.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/Command/CleanUp.php b/apps/files_trashbin/lib/Command/CleanUp.php
index daaa4003f7aed..9b25e7968b9ba 100644
--- a/apps/files_trashbin/lib/Command/CleanUp.php
+++ b/apps/files_trashbin/lib/Command/CleanUp.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/Command/Expire.php b/apps/files_trashbin/lib/Command/Expire.php
index f526438600eab..334c5c08a774a 100644
--- a/apps/files_trashbin/lib/Command/Expire.php
+++ b/apps/files_trashbin/lib/Command/Expire.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/Command/ExpireTrash.php b/apps/files_trashbin/lib/Command/ExpireTrash.php
index 37b356896665b..4f810ef7691f1 100644
--- a/apps/files_trashbin/lib/Command/ExpireTrash.php
+++ b/apps/files_trashbin/lib/Command/ExpireTrash.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
diff --git a/apps/files_trashbin/lib/Command/RestoreAllFiles.php b/apps/files_trashbin/lib/Command/RestoreAllFiles.php
index cb4e7f97ecd21..1d55dd30ac8cd 100644
--- a/apps/files_trashbin/lib/Command/RestoreAllFiles.php
+++ b/apps/files_trashbin/lib/Command/RestoreAllFiles.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/files_trashbin/lib/Events/MoveToTrashEvent.php b/apps/files_trashbin/lib/Events/MoveToTrashEvent.php
index 1596315dd2024..9deba9002017c 100644
--- a/apps/files_trashbin/lib/Events/MoveToTrashEvent.php
+++ b/apps/files_trashbin/lib/Events/MoveToTrashEvent.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/lib/Exceptions/CopyRecursiveException.php b/apps/files_trashbin/lib/Exceptions/CopyRecursiveException.php
index 9da2631c97ba8..cec6c92ce6f2f 100644
--- a/apps/files_trashbin/lib/Exceptions/CopyRecursiveException.php
+++ b/apps/files_trashbin/lib/Exceptions/CopyRecursiveException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/files_trashbin/lib/Expiration.php b/apps/files_trashbin/lib/Expiration.php
index ed5d62aa29406..6dd2c43f5740b 100644
--- a/apps/files_trashbin/lib/Expiration.php
+++ b/apps/files_trashbin/lib/Expiration.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/Helper.php b/apps/files_trashbin/lib/Helper.php
index 7aeb737a56c40..33db589480e8f 100644
--- a/apps/files_trashbin/lib/Helper.php
+++ b/apps/files_trashbin/lib/Helper.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/Storage.php b/apps/files_trashbin/lib/Storage.php
index a1247eaed78ba..8289884f1948f 100644
--- a/apps/files_trashbin/lib/Storage.php
+++ b/apps/files_trashbin/lib/Storage.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/lib/Trash/BackendNotFoundException.php b/apps/files_trashbin/lib/Trash/BackendNotFoundException.php
index 8e23a04851ab7..2e275c3b37613 100644
--- a/apps/files_trashbin/lib/Trash/BackendNotFoundException.php
+++ b/apps/files_trashbin/lib/Trash/BackendNotFoundException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/lib/Trash/ITrashBackend.php b/apps/files_trashbin/lib/Trash/ITrashBackend.php
index f5d4657bfbc1c..0e30c5972bda6 100644
--- a/apps/files_trashbin/lib/Trash/ITrashBackend.php
+++ b/apps/files_trashbin/lib/Trash/ITrashBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/lib/Trash/ITrashItem.php b/apps/files_trashbin/lib/Trash/ITrashItem.php
index f67276e6f54d0..c439ccee37e09 100644
--- a/apps/files_trashbin/lib/Trash/ITrashItem.php
+++ b/apps/files_trashbin/lib/Trash/ITrashItem.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/lib/Trash/ITrashManager.php b/apps/files_trashbin/lib/Trash/ITrashManager.php
index 4a2eaead11ba4..26877f6697ca6 100644
--- a/apps/files_trashbin/lib/Trash/ITrashManager.php
+++ b/apps/files_trashbin/lib/Trash/ITrashManager.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/lib/Trash/LegacyTrashBackend.php b/apps/files_trashbin/lib/Trash/LegacyTrashBackend.php
index 0fd370a6cf137..c68b3a71b8c6b 100644
--- a/apps/files_trashbin/lib/Trash/LegacyTrashBackend.php
+++ b/apps/files_trashbin/lib/Trash/LegacyTrashBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/lib/Trash/TrashItem.php b/apps/files_trashbin/lib/Trash/TrashItem.php
index 31dbb10def202..8859004ce4ffa 100644
--- a/apps/files_trashbin/lib/Trash/TrashItem.php
+++ b/apps/files_trashbin/lib/Trash/TrashItem.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/lib/Trash/TrashManager.php b/apps/files_trashbin/lib/Trash/TrashManager.php
index bf3eaebdc2a0c..8702e716d24d0 100644
--- a/apps/files_trashbin/lib/Trash/TrashManager.php
+++ b/apps/files_trashbin/lib/Trash/TrashManager.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/lib/Trashbin.php b/apps/files_trashbin/lib/Trashbin.php
index f6791f78a3858..af3f8244904b2 100644
--- a/apps/files_trashbin/lib/Trashbin.php
+++ b/apps/files_trashbin/lib/Trashbin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/tests/BackgroundJob/ExpireTrashTest.php b/apps/files_trashbin/tests/BackgroundJob/ExpireTrashTest.php
index b172f1f27154a..edb0f066d2881 100644
--- a/apps/files_trashbin/tests/BackgroundJob/ExpireTrashTest.php
+++ b/apps/files_trashbin/tests/BackgroundJob/ExpireTrashTest.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files_Trashbin\Tests\BackgroundJob;
 
 use OCA\Files_Trashbin\BackgroundJob\ExpireTrash;
diff --git a/apps/files_trashbin/tests/CapabilitiesTest.php b/apps/files_trashbin/tests/CapabilitiesTest.php
index a2a17ca349e9d..4e5ec476eccf7 100644
--- a/apps/files_trashbin/tests/CapabilitiesTest.php
+++ b/apps/files_trashbin/tests/CapabilitiesTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/tests/Command/CleanUpTest.php b/apps/files_trashbin/tests/Command/CleanUpTest.php
index fef57f44f24e8..17ab8954ff240 100644
--- a/apps/files_trashbin/tests/Command/CleanUpTest.php
+++ b/apps/files_trashbin/tests/Command/CleanUpTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/tests/Command/ExpireTest.php b/apps/files_trashbin/tests/Command/ExpireTest.php
index 4402e07bbb0c9..3441dddaadb43 100644
--- a/apps/files_trashbin/tests/Command/ExpireTest.php
+++ b/apps/files_trashbin/tests/Command/ExpireTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/tests/Controller/PreviewControllerTest.php b/apps/files_trashbin/tests/Controller/PreviewControllerTest.php
index 1076870bb9f3c..43c343d1a1e4e 100644
--- a/apps/files_trashbin/tests/Controller/PreviewControllerTest.php
+++ b/apps/files_trashbin/tests/Controller/PreviewControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_trashbin/tests/ExpirationTest.php b/apps/files_trashbin/tests/ExpirationTest.php
index 7f026c168067a..9778dfd84bdc7 100644
--- a/apps/files_trashbin/tests/ExpirationTest.php
+++ b/apps/files_trashbin/tests/ExpirationTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/tests/StorageTest.php b/apps/files_trashbin/tests/StorageTest.php
index ec01e16b16ab5..eb04389419f69 100644
--- a/apps/files_trashbin/tests/StorageTest.php
+++ b/apps/files_trashbin/tests/StorageTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_trashbin/tests/TrashbinTest.php b/apps/files_trashbin/tests/TrashbinTest.php
index ea9abedd14489..f3677daedc382 100644
--- a/apps/files_trashbin/tests/TrashbinTest.php
+++ b/apps/files_trashbin/tests/TrashbinTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/appinfo/routes.php b/apps/files_versions/appinfo/routes.php
index 09aa3c7a3ec94..d477ebf373760 100644
--- a/apps/files_versions/appinfo/routes.php
+++ b/apps/files_versions/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/lib/AppInfo/Application.php b/apps/files_versions/lib/AppInfo/Application.php
index a31e9823efdaa..f60749f4f0373 100644
--- a/apps/files_versions/lib/AppInfo/Application.php
+++ b/apps/files_versions/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/lib/BackgroundJob/ExpireVersions.php b/apps/files_versions/lib/BackgroundJob/ExpireVersions.php
index 6de2936483566..ef0ab1d14ef6f 100644
--- a/apps/files_versions/lib/BackgroundJob/ExpireVersions.php
+++ b/apps/files_versions/lib/BackgroundJob/ExpireVersions.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/lib/Capabilities.php b/apps/files_versions/lib/Capabilities.php
index 4919006bce3d0..248231c69be7b 100644
--- a/apps/files_versions/lib/Capabilities.php
+++ b/apps/files_versions/lib/Capabilities.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/lib/Command/CleanUp.php b/apps/files_versions/lib/Command/CleanUp.php
index 1cd3dccc4dd2d..e84444250a6a7 100644
--- a/apps/files_versions/lib/Command/CleanUp.php
+++ b/apps/files_versions/lib/Command/CleanUp.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/lib/Command/Expire.php b/apps/files_versions/lib/Command/Expire.php
index 6ec7a4fd32a24..f99d57f1bbdcd 100644
--- a/apps/files_versions/lib/Command/Expire.php
+++ b/apps/files_versions/lib/Command/Expire.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/lib/Command/ExpireVersions.php b/apps/files_versions/lib/Command/ExpireVersions.php
index fd0118549c6ce..d84e2bfab0d41 100644
--- a/apps/files_versions/lib/Command/ExpireVersions.php
+++ b/apps/files_versions/lib/Command/ExpireVersions.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
diff --git a/apps/files_versions/lib/Controller/PreviewController.php b/apps/files_versions/lib/Controller/PreviewController.php
index e1d87b4b9f517..6372ddc79898f 100644
--- a/apps/files_versions/lib/Controller/PreviewController.php
+++ b/apps/files_versions/lib/Controller/PreviewController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_versions/lib/Events/CreateVersionEvent.php b/apps/files_versions/lib/Events/CreateVersionEvent.php
index 1399cdbb98801..775c01d8ac695 100644
--- a/apps/files_versions/lib/Events/CreateVersionEvent.php
+++ b/apps/files_versions/lib/Events/CreateVersionEvent.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_versions/lib/Expiration.php b/apps/files_versions/lib/Expiration.php
index b84756212e4c6..4e785dc5553ea 100644
--- a/apps/files_versions/lib/Expiration.php
+++ b/apps/files_versions/lib/Expiration.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/lib/Listener/FileEventsListener.php b/apps/files_versions/lib/Listener/FileEventsListener.php
index c078f4bc34755..0018a7e0e1076 100644
--- a/apps/files_versions/lib/Listener/FileEventsListener.php
+++ b/apps/files_versions/lib/Listener/FileEventsListener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/lib/Sabre/RootCollection.php b/apps/files_versions/lib/Sabre/RootCollection.php
index ded4f3dda7b93..ac3b04dd71f9c 100644
--- a/apps/files_versions/lib/Sabre/RootCollection.php
+++ b/apps/files_versions/lib/Sabre/RootCollection.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_versions/lib/Sabre/VersionHome.php b/apps/files_versions/lib/Sabre/VersionHome.php
index 7f182958d94f7..bd8e46bda3d2d 100644
--- a/apps/files_versions/lib/Sabre/VersionHome.php
+++ b/apps/files_versions/lib/Sabre/VersionHome.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_versions/lib/Storage.php b/apps/files_versions/lib/Storage.php
index 813b5267be270..434e08358e99f 100644
--- a/apps/files_versions/lib/Storage.php
+++ b/apps/files_versions/lib/Storage.php
@@ -1,10 +1,12 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\Files_Versions;
 
 use OC\Files\Filesystem;
diff --git a/apps/files_versions/lib/Versions/BackendNotFoundException.php b/apps/files_versions/lib/Versions/BackendNotFoundException.php
index af903e9abeb13..abed50a388b78 100644
--- a/apps/files_versions/lib/Versions/BackendNotFoundException.php
+++ b/apps/files_versions/lib/Versions/BackendNotFoundException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_versions/tests/BackgroundJob/ExpireVersionsTest.php b/apps/files_versions/tests/BackgroundJob/ExpireVersionsTest.php
index 7a35e9f5f39b1..46d610a6a4605 100644
--- a/apps/files_versions/tests/BackgroundJob/ExpireVersionsTest.php
+++ b/apps/files_versions/tests/BackgroundJob/ExpireVersionsTest.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\Files_Versions\Tests\BackgroundJob;
 
 use OCA\Files_Versions\BackgroundJob\ExpireVersions;
diff --git a/apps/files_versions/tests/Command/CleanupTest.php b/apps/files_versions/tests/Command/CleanupTest.php
index 62d9576e9c505..c2426179a3264 100644
--- a/apps/files_versions/tests/Command/CleanupTest.php
+++ b/apps/files_versions/tests/Command/CleanupTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/tests/Command/ExpireTest.php b/apps/files_versions/tests/Command/ExpireTest.php
index 11f4eb2e2be37..1cf2b00384757 100644
--- a/apps/files_versions/tests/Command/ExpireTest.php
+++ b/apps/files_versions/tests/Command/ExpireTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/tests/Controller/PreviewControllerTest.php b/apps/files_versions/tests/Controller/PreviewControllerTest.php
index 9899836bb8882..5638a8505b29a 100644
--- a/apps/files_versions/tests/Controller/PreviewControllerTest.php
+++ b/apps/files_versions/tests/Controller/PreviewControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/files_versions/tests/ExpirationTest.php b/apps/files_versions/tests/ExpirationTest.php
index ac8af7c093ae0..6f5f84286262d 100644
--- a/apps/files_versions/tests/ExpirationTest.php
+++ b/apps/files_versions/tests/ExpirationTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/files_versions/tests/VersioningTest.php b/apps/files_versions/tests/VersioningTest.php
index 20a0a783ecc87..b98ffbeb63680 100644
--- a/apps/files_versions/tests/VersioningTest.php
+++ b/apps/files_versions/tests/VersioningTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/oauth2/appinfo/routes.php b/apps/oauth2/appinfo/routes.php
index f40eaf964061a..eadac04f47f4b 100644
--- a/apps/oauth2/appinfo/routes.php
+++ b/apps/oauth2/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/lib/Db/AccessToken.php b/apps/oauth2/lib/Db/AccessToken.php
index f9c0e6de51e6f..2027371892588 100644
--- a/apps/oauth2/lib/Db/AccessToken.php
+++ b/apps/oauth2/lib/Db/AccessToken.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/lib/Db/Client.php b/apps/oauth2/lib/Db/Client.php
index 458d85b24ab25..b121951993cd4 100644
--- a/apps/oauth2/lib/Db/Client.php
+++ b/apps/oauth2/lib/Db/Client.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/templates/admin.php b/apps/oauth2/templates/admin.php
index 3f6f879b7e156..fd1daaae6fe4e 100644
--- a/apps/oauth2/templates/admin.php
+++ b/apps/oauth2/templates/admin.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/tests/Controller/LoginRedirectorControllerTest.php b/apps/oauth2/tests/Controller/LoginRedirectorControllerTest.php
index 3080685457455..22917ed9392e1 100644
--- a/apps/oauth2/tests/Controller/LoginRedirectorControllerTest.php
+++ b/apps/oauth2/tests/Controller/LoginRedirectorControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/tests/Controller/OauthApiControllerTest.php b/apps/oauth2/tests/Controller/OauthApiControllerTest.php
index 8d13265ec9e8d..c7a05a720cb41 100644
--- a/apps/oauth2/tests/Controller/OauthApiControllerTest.php
+++ b/apps/oauth2/tests/Controller/OauthApiControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/tests/Controller/SettingsControllerTest.php b/apps/oauth2/tests/Controller/SettingsControllerTest.php
index 5b8a57a4062ab..973ac0d3b4863 100644
--- a/apps/oauth2/tests/Controller/SettingsControllerTest.php
+++ b/apps/oauth2/tests/Controller/SettingsControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/tests/Db/AccessTokenMapperTest.php b/apps/oauth2/tests/Db/AccessTokenMapperTest.php
index d1d595ef00317..f5d1da864506b 100644
--- a/apps/oauth2/tests/Db/AccessTokenMapperTest.php
+++ b/apps/oauth2/tests/Db/AccessTokenMapperTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/tests/Db/ClientMapperTest.php b/apps/oauth2/tests/Db/ClientMapperTest.php
index 7c11470d09668..555ea4d9fcb0f 100644
--- a/apps/oauth2/tests/Db/ClientMapperTest.php
+++ b/apps/oauth2/tests/Db/ClientMapperTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/oauth2/tests/Settings/AdminTest.php b/apps/oauth2/tests/Settings/AdminTest.php
index ca9100669dfec..94c587ad2de08 100644
--- a/apps/oauth2/tests/Settings/AdminTest.php
+++ b/apps/oauth2/tests/Settings/AdminTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/provisioning_api/appinfo/routes.php b/apps/provisioning_api/appinfo/routes.php
index 78526ce640234..91e9b6ecd9c78 100644
--- a/apps/provisioning_api/appinfo/routes.php
+++ b/apps/provisioning_api/appinfo/routes.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/provisioning_api/lib/AppInfo/Application.php b/apps/provisioning_api/lib/AppInfo/Application.php
index b13f2b0eba52e..43835ebf9eec6 100644
--- a/apps/provisioning_api/lib/AppInfo/Application.php
+++ b/apps/provisioning_api/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/provisioning_api/lib/Capabilities.php b/apps/provisioning_api/lib/Capabilities.php
index 1c2a7b867fa07..87fda098f7b08 100644
--- a/apps/provisioning_api/lib/Capabilities.php
+++ b/apps/provisioning_api/lib/Capabilities.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/provisioning_api/lib/Middleware/Exceptions/NotSubAdminException.php b/apps/provisioning_api/lib/Middleware/Exceptions/NotSubAdminException.php
index c7be073b8af0f..771d29bbafbb3 100644
--- a/apps/provisioning_api/lib/Middleware/Exceptions/NotSubAdminException.php
+++ b/apps/provisioning_api/lib/Middleware/Exceptions/NotSubAdminException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/provisioning_api/tests/CapabilitiesTest.php b/apps/provisioning_api/tests/CapabilitiesTest.php
index e3c14f37ed793..7c086942aab77 100644
--- a/apps/provisioning_api/tests/CapabilitiesTest.php
+++ b/apps/provisioning_api/tests/CapabilitiesTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/provisioning_api/tests/Controller/AppConfigControllerTest.php b/apps/provisioning_api/tests/Controller/AppConfigControllerTest.php
index 41739b6283fe6..d2336369c1c53 100644
--- a/apps/provisioning_api/tests/Controller/AppConfigControllerTest.php
+++ b/apps/provisioning_api/tests/Controller/AppConfigControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/provisioning_api/tests/Controller/AppsControllerTest.php b/apps/provisioning_api/tests/Controller/AppsControllerTest.php
index 51980ce7ed201..5721bc49384fd 100644
--- a/apps/provisioning_api/tests/Controller/AppsControllerTest.php
+++ b/apps/provisioning_api/tests/Controller/AppsControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/provisioning_api/tests/Controller/GroupsControllerTest.php b/apps/provisioning_api/tests/Controller/GroupsControllerTest.php
index b1a708b9aa2fd..24a025b18b656 100644
--- a/apps/provisioning_api/tests/Controller/GroupsControllerTest.php
+++ b/apps/provisioning_api/tests/Controller/GroupsControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/provisioning_api/tests/Controller/UsersControllerTest.php b/apps/provisioning_api/tests/Controller/UsersControllerTest.php
index 2d339205fae6f..81c0e4d211d39 100644
--- a/apps/provisioning_api/tests/Controller/UsersControllerTest.php
+++ b/apps/provisioning_api/tests/Controller/UsersControllerTest.php
@@ -1,5 +1,6 @@
 <?php
 
+declare(strict_types=1);
 
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
diff --git a/apps/provisioning_api/tests/Middleware/ProvisioningApiMiddlewareTest.php b/apps/provisioning_api/tests/Middleware/ProvisioningApiMiddlewareTest.php
index d097febb04fe7..3a86c34ae070d 100644
--- a/apps/provisioning_api/tests/Middleware/ProvisioningApiMiddlewareTest.php
+++ b/apps/provisioning_api/tests/Middleware/ProvisioningApiMiddlewareTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/provisioning_api/tests/TestCase.php b/apps/provisioning_api/tests/TestCase.php
index de2a01201848c..c790c0b0ee0b0 100644
--- a/apps/provisioning_api/tests/TestCase.php
+++ b/apps/provisioning_api/tests/TestCase.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/settings/lib/Activity/GroupProvider.php b/apps/settings/lib/Activity/GroupProvider.php
index 72c9ca0d719f5..74c52d37f52e3 100644
--- a/apps/settings/lib/Activity/GroupProvider.php
+++ b/apps/settings/lib/Activity/GroupProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Activity/GroupSetting.php b/apps/settings/lib/Activity/GroupSetting.php
index 9433bdb25d244..a97c233e6d918 100644
--- a/apps/settings/lib/Activity/GroupSetting.php
+++ b/apps/settings/lib/Activity/GroupSetting.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Activity/SecurityFilter.php b/apps/settings/lib/Activity/SecurityFilter.php
index 5ff6685f44998..283b0862ae69f 100644
--- a/apps/settings/lib/Activity/SecurityFilter.php
+++ b/apps/settings/lib/Activity/SecurityFilter.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Activity/SecuritySetting.php b/apps/settings/lib/Activity/SecuritySetting.php
index 997e63a97b104..5a42db555f283 100644
--- a/apps/settings/lib/Activity/SecuritySetting.php
+++ b/apps/settings/lib/Activity/SecuritySetting.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Activity/Setting.php b/apps/settings/lib/Activity/Setting.php
index 621dadda11d2a..dcc308e29501c 100644
--- a/apps/settings/lib/Activity/Setting.php
+++ b/apps/settings/lib/Activity/Setting.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Controller/AdminSettingsController.php b/apps/settings/lib/Controller/AdminSettingsController.php
index 2b731c5cddebb..e76b27f9f3be6 100644
--- a/apps/settings/lib/Controller/AdminSettingsController.php
+++ b/apps/settings/lib/Controller/AdminSettingsController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Controller/AppSettingsController.php b/apps/settings/lib/Controller/AppSettingsController.php
index 7a1e5dd71571e..1277f7a7aea78 100644
--- a/apps/settings/lib/Controller/AppSettingsController.php
+++ b/apps/settings/lib/Controller/AppSettingsController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/settings/lib/Controller/AuthSettingsController.php b/apps/settings/lib/Controller/AuthSettingsController.php
index 8652a49fb1d6e..eb11ef9551146 100644
--- a/apps/settings/lib/Controller/AuthSettingsController.php
+++ b/apps/settings/lib/Controller/AuthSettingsController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/settings/lib/Controller/AuthorizedGroupController.php b/apps/settings/lib/Controller/AuthorizedGroupController.php
index ad01b5904402a..b21c708d72026 100644
--- a/apps/settings/lib/Controller/AuthorizedGroupController.php
+++ b/apps/settings/lib/Controller/AuthorizedGroupController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Controller/ChangePasswordController.php b/apps/settings/lib/Controller/ChangePasswordController.php
index 2154a9ab11b56..513ac1c3d4f01 100644
--- a/apps/settings/lib/Controller/ChangePasswordController.php
+++ b/apps/settings/lib/Controller/ChangePasswordController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
@@ -6,7 +9,6 @@
 // FIXME: disabled for now to be able to inject IGroupManager and also use
 // getSubAdmin()
 //declare(strict_types=1);
-
 namespace OCA\Settings\Controller;
 
 use OC\Group\Manager as GroupManager;
diff --git a/apps/settings/lib/Controller/CheckSetupController.php b/apps/settings/lib/Controller/CheckSetupController.php
index 2a189a37ce6ee..3a07775942747 100644
--- a/apps/settings/lib/Controller/CheckSetupController.php
+++ b/apps/settings/lib/Controller/CheckSetupController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/settings/lib/Controller/CommonSettingsTrait.php b/apps/settings/lib/Controller/CommonSettingsTrait.php
index 56760c10f8147..5346432fa2344 100644
--- a/apps/settings/lib/Controller/CommonSettingsTrait.php
+++ b/apps/settings/lib/Controller/CommonSettingsTrait.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\Settings\Controller;
 
 use InvalidArgumentException;
diff --git a/apps/settings/lib/Controller/LogSettingsController.php b/apps/settings/lib/Controller/LogSettingsController.php
index aa5ac9b2cc9fd..85460cb769111 100644
--- a/apps/settings/lib/Controller/LogSettingsController.php
+++ b/apps/settings/lib/Controller/LogSettingsController.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/settings/lib/Controller/MailSettingsController.php b/apps/settings/lib/Controller/MailSettingsController.php
index ca037f409b3c1..0c68687f02ec1 100644
--- a/apps/settings/lib/Controller/MailSettingsController.php
+++ b/apps/settings/lib/Controller/MailSettingsController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/settings/lib/Controller/PersonalSettingsController.php b/apps/settings/lib/Controller/PersonalSettingsController.php
index 0a87181c7d754..610da9434e1fe 100644
--- a/apps/settings/lib/Controller/PersonalSettingsController.php
+++ b/apps/settings/lib/Controller/PersonalSettingsController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Hooks.php b/apps/settings/lib/Hooks.php
index 8a68aed106ed4..1815079405ab3 100644
--- a/apps/settings/lib/Hooks.php
+++ b/apps/settings/lib/Hooks.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Listener/GroupRemovedListener.php b/apps/settings/lib/Listener/GroupRemovedListener.php
index c1b3f888ea8f4..ae73944660734 100644
--- a/apps/settings/lib/Listener/GroupRemovedListener.php
+++ b/apps/settings/lib/Listener/GroupRemovedListener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Mailer/NewUserMailHelper.php b/apps/settings/lib/Mailer/NewUserMailHelper.php
index bd4de2b20875e..6e4872aff402e 100644
--- a/apps/settings/lib/Mailer/NewUserMailHelper.php
+++ b/apps/settings/lib/Mailer/NewUserMailHelper.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Middleware/SubadminMiddleware.php b/apps/settings/lib/Middleware/SubadminMiddleware.php
index fe92661d24eb6..8688ce9fbe2fb 100644
--- a/apps/settings/lib/Middleware/SubadminMiddleware.php
+++ b/apps/settings/lib/Middleware/SubadminMiddleware.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors/**
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/settings/lib/Sections/Admin/Delegation.php b/apps/settings/lib/Sections/Admin/Delegation.php
index 2a455f1e54989..24bb555eae8c7 100644
--- a/apps/settings/lib/Sections/Admin/Delegation.php
+++ b/apps/settings/lib/Sections/Admin/Delegation.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\Settings\Sections\Admin;
 
 use OCP\IL10N;
diff --git a/apps/settings/lib/Service/AuthorizedGroupService.php b/apps/settings/lib/Service/AuthorizedGroupService.php
index 20966446d6187..3e207cec40816 100644
--- a/apps/settings/lib/Service/AuthorizedGroupService.php
+++ b/apps/settings/lib/Service/AuthorizedGroupService.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Service/NotFoundException.php b/apps/settings/lib/Service/NotFoundException.php
index 3abdcf72cd459..b72779349a967 100644
--- a/apps/settings/lib/Service/NotFoundException.php
+++ b/apps/settings/lib/Service/NotFoundException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Service/ServiceException.php b/apps/settings/lib/Service/ServiceException.php
index 79c848779ca1f..a9ef5f8762733 100644
--- a/apps/settings/lib/Service/ServiceException.php
+++ b/apps/settings/lib/Service/ServiceException.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Settings/Admin/Delegation.php b/apps/settings/lib/Settings/Admin/Delegation.php
index 59a26d1ac04af..9cce4c5da321d 100644
--- a/apps/settings/lib/Settings/Admin/Delegation.php
+++ b/apps/settings/lib/Settings/Admin/Delegation.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Settings/Admin/Mail.php b/apps/settings/lib/Settings/Admin/Mail.php
index ca0f4ef33ad7e..95f10f60581f0 100644
--- a/apps/settings/lib/Settings/Admin/Mail.php
+++ b/apps/settings/lib/Settings/Admin/Mail.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Settings/Admin/Overview.php b/apps/settings/lib/Settings/Admin/Overview.php
index 83027326a359b..fca3eccb7499d 100644
--- a/apps/settings/lib/Settings/Admin/Overview.php
+++ b/apps/settings/lib/Settings/Admin/Overview.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Settings/Admin/Security.php b/apps/settings/lib/Settings/Admin/Security.php
index 72485b8f8f31b..b6065d045dba6 100644
--- a/apps/settings/lib/Settings/Admin/Security.php
+++ b/apps/settings/lib/Settings/Admin/Security.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Settings/Admin/Server.php b/apps/settings/lib/Settings/Admin/Server.php
index 0f253ddf6b1f3..84dcfab266a69 100644
--- a/apps/settings/lib/Settings/Admin/Server.php
+++ b/apps/settings/lib/Settings/Admin/Server.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Settings/Admin/Sharing.php b/apps/settings/lib/Settings/Admin/Sharing.php
index c9ad58250c9ac..c96ee30c69846 100644
--- a/apps/settings/lib/Settings/Admin/Sharing.php
+++ b/apps/settings/lib/Settings/Admin/Sharing.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Settings/Personal/Additional.php b/apps/settings/lib/Settings/Personal/Additional.php
index c8b3fc66450d9..52b2a33a05d87 100644
--- a/apps/settings/lib/Settings/Personal/Additional.php
+++ b/apps/settings/lib/Settings/Personal/Additional.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/lib/Settings/Personal/ServerDevNotice.php b/apps/settings/lib/Settings/Personal/ServerDevNotice.php
index 71c83740b9291..b788635cde47e 100644
--- a/apps/settings/lib/Settings/Personal/ServerDevNotice.php
+++ b/apps/settings/lib/Settings/Personal/ServerDevNotice.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/help.php b/apps/settings/templates/help.php
index 1488399679122..604344b009e39 100644
--- a/apps/settings/templates/help.php
+++ b/apps/settings/templates/help.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/additional.php b/apps/settings/templates/settings/additional.php
index 9e0b61ef65aad..a3d7dfa995126 100644
--- a/apps/settings/templates/settings/additional.php
+++ b/apps/settings/templates/settings/additional.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/admin/additional-mail.php b/apps/settings/templates/settings/admin/additional-mail.php
index ecc2973f085f6..02bfbaaf46898 100644
--- a/apps/settings/templates/settings/admin/additional-mail.php
+++ b/apps/settings/templates/settings/admin/additional-mail.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/admin/ai.php b/apps/settings/templates/settings/admin/ai.php
index 3f1d7b7be17b7..0460987ac58be 100644
--- a/apps/settings/templates/settings/admin/ai.php
+++ b/apps/settings/templates/settings/admin/ai.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/admin/delegation.php b/apps/settings/templates/settings/admin/delegation.php
index 80298a6672597..9cdeac05f8582 100644
--- a/apps/settings/templates/settings/admin/delegation.php
+++ b/apps/settings/templates/settings/admin/delegation.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/admin/overview.php b/apps/settings/templates/settings/admin/overview.php
index c6d3ffa40bae1..acbcaa781e9d5 100644
--- a/apps/settings/templates/settings/admin/overview.php
+++ b/apps/settings/templates/settings/admin/overview.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/admin/security.php b/apps/settings/templates/settings/admin/security.php
index 8f305c4dbc696..73e420740cbde 100644
--- a/apps/settings/templates/settings/admin/security.php
+++ b/apps/settings/templates/settings/admin/security.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/admin/server.php b/apps/settings/templates/settings/admin/server.php
index aa320a03a2bdd..b0da5581d66b7 100644
--- a/apps/settings/templates/settings/admin/server.php
+++ b/apps/settings/templates/settings/admin/server.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/admin/sharing.php b/apps/settings/templates/settings/admin/sharing.php
index e9a44217d2e04..45b94b189e6f7 100644
--- a/apps/settings/templates/settings/admin/sharing.php
+++ b/apps/settings/templates/settings/admin/sharing.php
@@ -1,8 +1,10 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
 ?>
 
-<div id="vue-admin-settings-sharing"></div>
\ No newline at end of file
+<div id="vue-admin-settings-sharing"></div>
diff --git a/apps/settings/templates/settings/empty.php b/apps/settings/templates/settings/empty.php
index f7ae4113ac632..d88ff5f02be53 100644
--- a/apps/settings/templates/settings/empty.php
+++ b/apps/settings/templates/settings/empty.php
@@ -1,7 +1,9 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 // Empty template as Vue will take over the `id="conent"` of the base template element
diff --git a/apps/settings/templates/settings/frame.php b/apps/settings/templates/settings/frame.php
index 30d74efdc7d51..6acaa414977db 100644
--- a/apps/settings/templates/settings/frame.php
+++ b/apps/settings/templates/settings/frame.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/personal/development.notice.php b/apps/settings/templates/settings/personal/development.notice.php
index 723f954ecc51a..9894b42014425 100644
--- a/apps/settings/templates/settings/personal/development.notice.php
+++ b/apps/settings/templates/settings/personal/development.notice.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/personal/personal.info.php b/apps/settings/templates/settings/personal/personal.info.php
index e622663fba7d1..6ee0957c54df5 100644
--- a/apps/settings/templates/settings/personal/personal.info.php
+++ b/apps/settings/templates/settings/personal/personal.info.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/templates/settings/personal/security/password.php b/apps/settings/templates/settings/personal/security/password.php
index 0531468913a69..e544e934aeefa 100644
--- a/apps/settings/templates/settings/personal/security/password.php
+++ b/apps/settings/templates/settings/personal/security/password.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Activity/SecurityFilterTest.php b/apps/settings/tests/Activity/SecurityFilterTest.php
index f3f94df3d2183..d94dcfae6e933 100644
--- a/apps/settings/tests/Activity/SecurityFilterTest.php
+++ b/apps/settings/tests/Activity/SecurityFilterTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Activity/SecurityProviderTest.php b/apps/settings/tests/Activity/SecurityProviderTest.php
index 35526995a6740..f9e5564e7bd7f 100644
--- a/apps/settings/tests/Activity/SecurityProviderTest.php
+++ b/apps/settings/tests/Activity/SecurityProviderTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Activity/SecuritySettingTest.php b/apps/settings/tests/Activity/SecuritySettingTest.php
index 1b2b0e3361c4a..bf81eea5c42e4 100644
--- a/apps/settings/tests/Activity/SecuritySettingTest.php
+++ b/apps/settings/tests/Activity/SecuritySettingTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/AppInfo/ApplicationTest.php b/apps/settings/tests/AppInfo/ApplicationTest.php
index 677efdc64bf01..c656b4c7d32df 100644
--- a/apps/settings/tests/AppInfo/ApplicationTest.php
+++ b/apps/settings/tests/AppInfo/ApplicationTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Controller/AdminSettingsControllerTest.php b/apps/settings/tests/Controller/AdminSettingsControllerTest.php
index 445e3971cf8ff..d26f142845d86 100644
--- a/apps/settings/tests/Controller/AdminSettingsControllerTest.php
+++ b/apps/settings/tests/Controller/AdminSettingsControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Controller/AppSettingsControllerTest.php b/apps/settings/tests/Controller/AppSettingsControllerTest.php
index c219ee2fc9fda..820aad7bf4f97 100644
--- a/apps/settings/tests/Controller/AppSettingsControllerTest.php
+++ b/apps/settings/tests/Controller/AppSettingsControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2015 ownCloud, Inc.
diff --git a/apps/settings/tests/Controller/AuthSettingsControllerTest.php b/apps/settings/tests/Controller/AuthSettingsControllerTest.php
index 13213992d9474..7971cefa1c021 100644
--- a/apps/settings/tests/Controller/AuthSettingsControllerTest.php
+++ b/apps/settings/tests/Controller/AuthSettingsControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/settings/tests/Controller/CheckSetupControllerTest.php b/apps/settings/tests/Controller/CheckSetupControllerTest.php
index 27f7aa1b6969f..07fee247b47a2 100644
--- a/apps/settings/tests/Controller/CheckSetupControllerTest.php
+++ b/apps/settings/tests/Controller/CheckSetupControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2015 ownCloud, Inc.
diff --git a/apps/settings/tests/Controller/DelegationControllerTest.php b/apps/settings/tests/Controller/DelegationControllerTest.php
index 5994ddf298d7a..9774372d46928 100644
--- a/apps/settings/tests/Controller/DelegationControllerTest.php
+++ b/apps/settings/tests/Controller/DelegationControllerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Controller/MailSettingsControllerTest.php b/apps/settings/tests/Controller/MailSettingsControllerTest.php
index d4d1e319a8e2b..73e879ab63707 100644
--- a/apps/settings/tests/Controller/MailSettingsControllerTest.php
+++ b/apps/settings/tests/Controller/MailSettingsControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Controller/TwoFactorSettingsControllerTest.php b/apps/settings/tests/Controller/TwoFactorSettingsControllerTest.php
index c34b2907dfd92..7560eb44743ff 100644
--- a/apps/settings/tests/Controller/TwoFactorSettingsControllerTest.php
+++ b/apps/settings/tests/Controller/TwoFactorSettingsControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Controller/UsersControllerTest.php b/apps/settings/tests/Controller/UsersControllerTest.php
index 96823e5ceed0e..0e74febdb9682 100644
--- a/apps/settings/tests/Controller/UsersControllerTest.php
+++ b/apps/settings/tests/Controller/UsersControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2014-2015 ownCloud, Inc.
diff --git a/apps/settings/tests/Mailer/NewUserMailHelperTest.php b/apps/settings/tests/Mailer/NewUserMailHelperTest.php
index 87ad301dee71a..84761a65f0884 100644
--- a/apps/settings/tests/Mailer/NewUserMailHelperTest.php
+++ b/apps/settings/tests/Mailer/NewUserMailHelperTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Middleware/SubadminMiddlewareTest.php b/apps/settings/tests/Middleware/SubadminMiddlewareTest.php
index dc725e2d377d9..06a19c19d4736 100644
--- a/apps/settings/tests/Middleware/SubadminMiddlewareTest.php
+++ b/apps/settings/tests/Middleware/SubadminMiddlewareTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2014 ownCloud, Inc.
diff --git a/apps/settings/tests/Settings/Admin/MailTest.php b/apps/settings/tests/Settings/Admin/MailTest.php
index f5c5b91aad7fe..aad9d50705343 100644
--- a/apps/settings/tests/Settings/Admin/MailTest.php
+++ b/apps/settings/tests/Settings/Admin/MailTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Settings/Admin/SecurityTest.php b/apps/settings/tests/Settings/Admin/SecurityTest.php
index 95b5e9883975a..59cdfbaba2c19 100644
--- a/apps/settings/tests/Settings/Admin/SecurityTest.php
+++ b/apps/settings/tests/Settings/Admin/SecurityTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/settings/tests/Settings/Admin/SharingTest.php b/apps/settings/tests/Settings/Admin/SharingTest.php
index 9db7a25780694..241e6dd22a700 100644
--- a/apps/settings/tests/Settings/Admin/SharingTest.php
+++ b/apps/settings/tests/Settings/Admin/SharingTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/sharebymail/lib/Activity.php b/apps/sharebymail/lib/Activity.php
index ae3407c1e2bdf..92e5d759c15ec 100644
--- a/apps/sharebymail/lib/Activity.php
+++ b/apps/sharebymail/lib/Activity.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/sharebymail/lib/Settings/Admin.php b/apps/sharebymail/lib/Settings/Admin.php
index 2bd58f7307feb..560d94154ccf6 100644
--- a/apps/sharebymail/lib/Settings/Admin.php
+++ b/apps/sharebymail/lib/Settings/Admin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/sharebymail/lib/ShareByMailProvider.php b/apps/sharebymail/lib/ShareByMailProvider.php
index 9efc0ec2513a8..822779995bb06 100644
--- a/apps/sharebymail/lib/ShareByMailProvider.php
+++ b/apps/sharebymail/lib/ShareByMailProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/sharebymail/templates/settings-admin.php b/apps/sharebymail/templates/settings-admin.php
index 1db46617fb3d9..d736348f8577d 100644
--- a/apps/sharebymail/templates/settings-admin.php
+++ b/apps/sharebymail/templates/settings-admin.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/sharebymail/tests/CapabilitiesTest.php b/apps/sharebymail/tests/CapabilitiesTest.php
index d38618650b311..8d7327825ae49 100644
--- a/apps/sharebymail/tests/CapabilitiesTest.php
+++ b/apps/sharebymail/tests/CapabilitiesTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/sharebymail/tests/ShareByMailProviderTest.php b/apps/sharebymail/tests/ShareByMailProviderTest.php
index 9f5434dbe5abd..096b5a098acdb 100644
--- a/apps/sharebymail/tests/ShareByMailProviderTest.php
+++ b/apps/sharebymail/tests/ShareByMailProviderTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/systemtags/appinfo/routes.php b/apps/systemtags/appinfo/routes.php
index d61a35ef6302f..82151690fa75b 100644
--- a/apps/systemtags/appinfo/routes.php
+++ b/apps/systemtags/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/systemtags/lib/Activity/Listener.php b/apps/systemtags/lib/Activity/Listener.php
index d255ef2b91f8b..12e3e3e892466 100644
--- a/apps/systemtags/lib/Activity/Listener.php
+++ b/apps/systemtags/lib/Activity/Listener.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/systemtags/lib/Activity/Provider.php b/apps/systemtags/lib/Activity/Provider.php
index e2abebab20849..5749bd6b7ea1f 100644
--- a/apps/systemtags/lib/Activity/Provider.php
+++ b/apps/systemtags/lib/Activity/Provider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/systemtags/lib/Activity/Setting.php b/apps/systemtags/lib/Activity/Setting.php
index 95001e95cf3ab..84e5bc0f66a56 100644
--- a/apps/systemtags/lib/Activity/Setting.php
+++ b/apps/systemtags/lib/Activity/Setting.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/systemtags/lib/Controller/LastUsedController.php b/apps/systemtags/lib/Controller/LastUsedController.php
index c1919290de058..0ca7bc83a96b4 100644
--- a/apps/systemtags/lib/Controller/LastUsedController.php
+++ b/apps/systemtags/lib/Controller/LastUsedController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/systemtags/lib/Settings/Admin.php b/apps/systemtags/lib/Settings/Admin.php
index b032e6b769458..335181cbe27c3 100644
--- a/apps/systemtags/lib/Settings/Admin.php
+++ b/apps/systemtags/lib/Settings/Admin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/systemtags/templates/admin.php b/apps/systemtags/templates/admin.php
index 16193c62edadf..e2475a90636b3 100644
--- a/apps/systemtags/templates/admin.php
+++ b/apps/systemtags/templates/admin.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/systemtags/tests/Activity/SettingTest.php b/apps/systemtags/tests/Activity/SettingTest.php
index 7ef46705e0261..51696350b0164 100644
--- a/apps/systemtags/tests/Activity/SettingTest.php
+++ b/apps/systemtags/tests/Activity/SettingTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/systemtags/tests/Settings/AdminTest.php b/apps/systemtags/tests/Settings/AdminTest.php
index 78f19475fae97..e0165790197ed 100644
--- a/apps/systemtags/tests/Settings/AdminTest.php
+++ b/apps/systemtags/tests/Settings/AdminTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/testing/appinfo/routes.php b/apps/testing/appinfo/routes.php
index 862f63ef4c2fb..912d4c7982a4a 100644
--- a/apps/testing/appinfo/routes.php
+++ b/apps/testing/appinfo/routes.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2015-2016 ownCloud, Inc.
diff --git a/apps/testing/clean_opcode_cache.php b/apps/testing/clean_opcode_cache.php
index d87388a05fd57..7ca7af3ab5123 100644
--- a/apps/testing/clean_opcode_cache.php
+++ b/apps/testing/clean_opcode_cache.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/testing/lib/AlternativeHomeUserBackend.php b/apps/testing/lib/AlternativeHomeUserBackend.php
index 730b11bcf74b7..90ed5c498be7e 100644
--- a/apps/testing/lib/AlternativeHomeUserBackend.php
+++ b/apps/testing/lib/AlternativeHomeUserBackend.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH.
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/testing/lib/AppInfo/Application.php b/apps/testing/lib/AppInfo/Application.php
index 02e37a4511b2e..c41a1d917db44 100644
--- a/apps/testing/lib/AppInfo/Application.php
+++ b/apps/testing/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud GmbH
diff --git a/apps/testing/lib/Controller/ConfigController.php b/apps/testing/lib/Controller/ConfigController.php
index 36cc4fff9aad3..3e27c642da0fe 100644
--- a/apps/testing/lib/Controller/ConfigController.php
+++ b/apps/testing/lib/Controller/ConfigController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/testing/lib/Controller/LockingController.php b/apps/testing/lib/Controller/LockingController.php
index e226126630fa5..bbd0e252d5484 100644
--- a/apps/testing/lib/Controller/LockingController.php
+++ b/apps/testing/lib/Controller/LockingController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/testing/lib/Controller/RateLimitTestController.php b/apps/testing/lib/Controller/RateLimitTestController.php
index b1df0d1d7b508..7eedef98dd2cd 100644
--- a/apps/testing/lib/Controller/RateLimitTestController.php
+++ b/apps/testing/lib/Controller/RateLimitTestController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/testing/lib/Locking/FakeDBLockingProvider.php b/apps/testing/lib/Locking/FakeDBLockingProvider.php
index 6e2fd9a77d822..f3f1f71ee292c 100644
--- a/apps/testing/lib/Locking/FakeDBLockingProvider.php
+++ b/apps/testing/lib/Locking/FakeDBLockingProvider.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/testing/lib/Provider/FakeText2ImageProvider.php b/apps/testing/lib/Provider/FakeText2ImageProvider.php
index 8e7ceca02f1de..1384f1a49f306 100644
--- a/apps/testing/lib/Provider/FakeText2ImageProvider.php
+++ b/apps/testing/lib/Provider/FakeText2ImageProvider.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\Testing\Provider;
 
 use OCP\TextToImage\IProvider;
diff --git a/apps/testing/lib/Provider/FakeTextProcessingProvider.php b/apps/testing/lib/Provider/FakeTextProcessingProvider.php
index ffa7d16ef242e..991d0c605c86e 100644
--- a/apps/testing/lib/Provider/FakeTextProcessingProvider.php
+++ b/apps/testing/lib/Provider/FakeTextProcessingProvider.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\Testing\Provider;
 
 use OCP\TextProcessing\FreePromptTaskType;
diff --git a/apps/testing/lib/Provider/FakeTextProcessingProviderSync.php b/apps/testing/lib/Provider/FakeTextProcessingProviderSync.php
index 55c0cfef3bfe7..01fc200be525a 100644
--- a/apps/testing/lib/Provider/FakeTextProcessingProviderSync.php
+++ b/apps/testing/lib/Provider/FakeTextProcessingProviderSync.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\Testing\Provider;
 
 use OCP\TextProcessing\FreePromptTaskType;
diff --git a/apps/testing/lib/Provider/FakeTranslationProvider.php b/apps/testing/lib/Provider/FakeTranslationProvider.php
index 91d82272231af..8315cb0960f31 100644
--- a/apps/testing/lib/Provider/FakeTranslationProvider.php
+++ b/apps/testing/lib/Provider/FakeTranslationProvider.php
@@ -1,9 +1,11 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\Testing\Provider;
 
 use OCP\Translation\ITranslationProvider;
diff --git a/apps/theming/appinfo/routes.php b/apps/theming/appinfo/routes.php
index 21cc6aa6c2ed1..ee83fa5bc17ea 100644
--- a/apps/theming/appinfo/routes.php
+++ b/apps/theming/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/AppInfo/Application.php b/apps/theming/lib/AppInfo/Application.php
index c031243361f4a..c0a69e5189ad0 100644
--- a/apps/theming/lib/AppInfo/Application.php
+++ b/apps/theming/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Capabilities.php b/apps/theming/lib/Capabilities.php
index b6145298d956b..423adfb89340f 100644
--- a/apps/theming/lib/Capabilities.php
+++ b/apps/theming/lib/Capabilities.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Command/UpdateConfig.php b/apps/theming/lib/Command/UpdateConfig.php
index 89e4768837230..ebbf1be31883b 100644
--- a/apps/theming/lib/Command/UpdateConfig.php
+++ b/apps/theming/lib/Command/UpdateConfig.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2020 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Controller/IconController.php b/apps/theming/lib/Controller/IconController.php
index acb59c9a86f57..11a3e820ce300 100644
--- a/apps/theming/lib/Controller/IconController.php
+++ b/apps/theming/lib/Controller/IconController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Controller/ThemingController.php b/apps/theming/lib/Controller/ThemingController.php
index 1b02595fa39a6..dc65a70128ba8 100644
--- a/apps/theming/lib/Controller/ThemingController.php
+++ b/apps/theming/lib/Controller/ThemingController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/IconBuilder.php b/apps/theming/lib/IconBuilder.php
index 4ab9857e2cef4..9bd62601b4ca1 100644
--- a/apps/theming/lib/IconBuilder.php
+++ b/apps/theming/lib/IconBuilder.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/ImageManager.php b/apps/theming/lib/ImageManager.php
index 83828130425a4..19fd9807c1c66 100644
--- a/apps/theming/lib/ImageManager.php
+++ b/apps/theming/lib/ImageManager.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Service/ThemeInjectionService.php b/apps/theming/lib/Service/ThemeInjectionService.php
index f780f5484bd06..651527910fb43 100644
--- a/apps/theming/lib/Service/ThemeInjectionService.php
+++ b/apps/theming/lib/Service/ThemeInjectionService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Service/ThemesService.php b/apps/theming/lib/Service/ThemesService.php
index ef8d1ff44ffcf..4f641375bf225 100644
--- a/apps/theming/lib/Service/ThemesService.php
+++ b/apps/theming/lib/Service/ThemesService.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Settings/Admin.php b/apps/theming/lib/Settings/Admin.php
index 24ac0729de5df..23360b27d3870 100644
--- a/apps/theming/lib/Settings/Admin.php
+++ b/apps/theming/lib/Settings/Admin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Settings/AdminSection.php b/apps/theming/lib/Settings/AdminSection.php
index a659204e72278..007b3e904dee1 100644
--- a/apps/theming/lib/Settings/AdminSection.php
+++ b/apps/theming/lib/Settings/AdminSection.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Settings/Personal.php b/apps/theming/lib/Settings/Personal.php
index 9f78f2cbc3576..9b4756e6a0334 100644
--- a/apps/theming/lib/Settings/Personal.php
+++ b/apps/theming/lib/Settings/Personal.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Settings/PersonalSection.php b/apps/theming/lib/Settings/PersonalSection.php
index 851f122eed175..e325c8bb84aeb 100644
--- a/apps/theming/lib/Settings/PersonalSection.php
+++ b/apps/theming/lib/Settings/PersonalSection.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/ThemingDefaults.php b/apps/theming/lib/ThemingDefaults.php
index 42c96557ba76e..268334e0572b0 100644
--- a/apps/theming/lib/ThemingDefaults.php
+++ b/apps/theming/lib/ThemingDefaults.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/lib/Util.php b/apps/theming/lib/Util.php
index fbb465505ac0a..a692a1bda6357 100644
--- a/apps/theming/lib/Util.php
+++ b/apps/theming/lib/Util.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/templates/settings-admin.php b/apps/theming/templates/settings-admin.php
index 05bbd3684b540..3f69003e5b846 100644
--- a/apps/theming/templates/settings-admin.php
+++ b/apps/theming/templates/settings-admin.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/templates/settings-personal.php b/apps/theming/templates/settings-personal.php
index 494a466c84072..0a46dc9bb69a3 100644
--- a/apps/theming/templates/settings-personal.php
+++ b/apps/theming/templates/settings-personal.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
@@ -6,4 +8,4 @@
 
 ?>
 
-<span id="theming"></span>
\ No newline at end of file
+<span id="theming"></span>
diff --git a/apps/theming/tests/CapabilitiesTest.php b/apps/theming/tests/CapabilitiesTest.php
index 1274be929efb8..84007d839ff61 100644
--- a/apps/theming/tests/CapabilitiesTest.php
+++ b/apps/theming/tests/CapabilitiesTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Controller/IconControllerTest.php b/apps/theming/tests/Controller/IconControllerTest.php
index 42e841e9a0f9f..3b40d9ee1949e 100644
--- a/apps/theming/tests/Controller/IconControllerTest.php
+++ b/apps/theming/tests/Controller/IconControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Controller/ThemingControllerTest.php b/apps/theming/tests/Controller/ThemingControllerTest.php
index eead85d1ca314..a381a381ba5b5 100644
--- a/apps/theming/tests/Controller/ThemingControllerTest.php
+++ b/apps/theming/tests/Controller/ThemingControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Controller/UserThemeControllerTest.php b/apps/theming/tests/Controller/UserThemeControllerTest.php
index 7d369463c0db0..194262751bccc 100644
--- a/apps/theming/tests/Controller/UserThemeControllerTest.php
+++ b/apps/theming/tests/Controller/UserThemeControllerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/IconBuilderTest.php b/apps/theming/tests/IconBuilderTest.php
index ec7bd8bcc55b6..5963a4c68b8bd 100644
--- a/apps/theming/tests/IconBuilderTest.php
+++ b/apps/theming/tests/IconBuilderTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/ImageManagerTest.php b/apps/theming/tests/ImageManagerTest.php
index 68c8a06ee2ffd..dcb7aed789f30 100644
--- a/apps/theming/tests/ImageManagerTest.php
+++ b/apps/theming/tests/ImageManagerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Service/ThemesServiceTest.php b/apps/theming/tests/Service/ThemesServiceTest.php
index 77371cfe34c6f..daef1751ec8e4 100644
--- a/apps/theming/tests/Service/ThemesServiceTest.php
+++ b/apps/theming/tests/Service/ThemesServiceTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/ServicesTest.php b/apps/theming/tests/ServicesTest.php
index 516a1fca7764d..e0c9817f736f4 100644
--- a/apps/theming/tests/ServicesTest.php
+++ b/apps/theming/tests/ServicesTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Settings/AdminSectionTest.php b/apps/theming/tests/Settings/AdminSectionTest.php
index a73eca1cc5a42..1e745bc497055 100644
--- a/apps/theming/tests/Settings/AdminSectionTest.php
+++ b/apps/theming/tests/Settings/AdminSectionTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Settings/AdminTest.php b/apps/theming/tests/Settings/AdminTest.php
index 189a91bae3a9c..eec37cebd9311 100644
--- a/apps/theming/tests/Settings/AdminTest.php
+++ b/apps/theming/tests/Settings/AdminTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Settings/PersonalTest.php b/apps/theming/tests/Settings/PersonalTest.php
index 4630ef48c8a8e..2b083939f8061 100644
--- a/apps/theming/tests/Settings/PersonalTest.php
+++ b/apps/theming/tests/Settings/PersonalTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Themes/AccessibleThemeTestCase.php b/apps/theming/tests/Themes/AccessibleThemeTestCase.php
index a1327a04f0b83..6fec70789324b 100644
--- a/apps/theming/tests/Themes/AccessibleThemeTestCase.php
+++ b/apps/theming/tests/Themes/AccessibleThemeTestCase.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Themes/DarkHighContrastThemeTest.php b/apps/theming/tests/Themes/DarkHighContrastThemeTest.php
index 16f7e86d217b3..df762166e90ba 100644
--- a/apps/theming/tests/Themes/DarkHighContrastThemeTest.php
+++ b/apps/theming/tests/Themes/DarkHighContrastThemeTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Themes/DarkThemeTest.php b/apps/theming/tests/Themes/DarkThemeTest.php
index ea570adf21d55..0ce9a996d62dc 100644
--- a/apps/theming/tests/Themes/DarkThemeTest.php
+++ b/apps/theming/tests/Themes/DarkThemeTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Themes/DefaultThemeTest.php b/apps/theming/tests/Themes/DefaultThemeTest.php
index b463cf4567c50..8df789b4b2b5c 100644
--- a/apps/theming/tests/Themes/DefaultThemeTest.php
+++ b/apps/theming/tests/Themes/DefaultThemeTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Themes/DyslexiaFontTest.php b/apps/theming/tests/Themes/DyslexiaFontTest.php
index 4bd8b329f2dcc..b10739d23515f 100644
--- a/apps/theming/tests/Themes/DyslexiaFontTest.php
+++ b/apps/theming/tests/Themes/DyslexiaFontTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/Themes/HighContrastThemeTest.php b/apps/theming/tests/Themes/HighContrastThemeTest.php
index 71576caf84188..8be35d7ef601e 100644
--- a/apps/theming/tests/Themes/HighContrastThemeTest.php
+++ b/apps/theming/tests/Themes/HighContrastThemeTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/ThemingDefaultsTest.php b/apps/theming/tests/ThemingDefaultsTest.php
index b8b6c6869cd51..2f5b825add2ed 100644
--- a/apps/theming/tests/ThemingDefaultsTest.php
+++ b/apps/theming/tests/ThemingDefaultsTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/theming/tests/UtilTest.php b/apps/theming/tests/UtilTest.php
index f664a46733daa..2bea20e55aa68 100644
--- a/apps/theming/tests/UtilTest.php
+++ b/apps/theming/tests/UtilTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/updatenotification/templates/empty.php b/apps/updatenotification/templates/empty.php
index 47473ebab9dad..cb4d4403a825c 100644
--- a/apps/updatenotification/templates/empty.php
+++ b/apps/updatenotification/templates/empty.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/ajax/clearMappings.php b/apps/user_ldap/ajax/clearMappings.php
index 7df622f5e377d..fdfd79741a769 100644
--- a/apps/user_ldap/ajax/clearMappings.php
+++ b/apps/user_ldap/ajax/clearMappings.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/ajax/deleteConfiguration.php b/apps/user_ldap/ajax/deleteConfiguration.php
index 09899a7c6c642..cb2f7e04fbef1 100644
--- a/apps/user_ldap/ajax/deleteConfiguration.php
+++ b/apps/user_ldap/ajax/deleteConfiguration.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use OCA\User_LDAP\Helper;
 use OCP\Util;
 
diff --git a/apps/user_ldap/ajax/getConfiguration.php b/apps/user_ldap/ajax/getConfiguration.php
index 79a7372813c6e..4be5e3f93449c 100644
--- a/apps/user_ldap/ajax/getConfiguration.php
+++ b/apps/user_ldap/ajax/getConfiguration.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use OCA\User_LDAP\LDAP;
 
 /**
diff --git a/apps/user_ldap/ajax/getNewServerConfigPrefix.php b/apps/user_ldap/ajax/getNewServerConfigPrefix.php
index 9ee225ddaa02e..5940d938d1f33 100644
--- a/apps/user_ldap/ajax/getNewServerConfigPrefix.php
+++ b/apps/user_ldap/ajax/getNewServerConfigPrefix.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use OCA\User_LDAP\Configuration;
 use OCA\User_LDAP\Helper;
 
diff --git a/apps/user_ldap/ajax/setConfiguration.php b/apps/user_ldap/ajax/setConfiguration.php
index 815ef04025729..c03e8c3b7e2b4 100644
--- a/apps/user_ldap/ajax/setConfiguration.php
+++ b/apps/user_ldap/ajax/setConfiguration.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use OCA\User_LDAP\LDAP;
 
 /**
diff --git a/apps/user_ldap/ajax/testConfiguration.php b/apps/user_ldap/ajax/testConfiguration.php
index 16f0c583ae0d2..c517959657c6e 100644
--- a/apps/user_ldap/ajax/testConfiguration.php
+++ b/apps/user_ldap/ajax/testConfiguration.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use OCA\User_LDAP\LDAP;
 use OCP\Util;
 
diff --git a/apps/user_ldap/ajax/wizard.php b/apps/user_ldap/ajax/wizard.php
index fa6ed9d3a5ac7..d517926144ec0 100644
--- a/apps/user_ldap/ajax/wizard.php
+++ b/apps/user_ldap/ajax/wizard.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 use OCA\User_LDAP\AccessFactory;
 use OCA\User_LDAP\Configuration;
 use OCA\User_LDAP\LDAP;
diff --git a/apps/user_ldap/lib/Access.php b/apps/user_ldap/lib/Access.php
index ba62239138d5f..4ef21c5d16c90 100644
--- a/apps/user_ldap/lib/Access.php
+++ b/apps/user_ldap/lib/Access.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/AccessFactory.php b/apps/user_ldap/lib/AccessFactory.php
index c5c8ca17e417d..eecee3c719602 100644
--- a/apps/user_ldap/lib/AccessFactory.php
+++ b/apps/user_ldap/lib/AccessFactory.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/AppInfo/Application.php b/apps/user_ldap/lib/AppInfo/Application.php
index 3c1cb5daa123b..662bb0ae0d344 100644
--- a/apps/user_ldap/lib/AppInfo/Application.php
+++ b/apps/user_ldap/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/BackendUtility.php b/apps/user_ldap/lib/BackendUtility.php
index 88d7311cde0b4..65512fc2cf807 100644
--- a/apps/user_ldap/lib/BackendUtility.php
+++ b/apps/user_ldap/lib/BackendUtility.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Command/CheckUser.php b/apps/user_ldap/lib/Command/CheckUser.php
index 8bb26ce3d0ed7..1eed2ee5cee90 100644
--- a/apps/user_ldap/lib/Command/CheckUser.php
+++ b/apps/user_ldap/lib/Command/CheckUser.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Command/CreateEmptyConfig.php b/apps/user_ldap/lib/Command/CreateEmptyConfig.php
index 7c381cf431fb4..c9e03c942f254 100644
--- a/apps/user_ldap/lib/Command/CreateEmptyConfig.php
+++ b/apps/user_ldap/lib/Command/CreateEmptyConfig.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Command/DeleteConfig.php b/apps/user_ldap/lib/Command/DeleteConfig.php
index 7604e229bedbd..a7b16fe3496b1 100644
--- a/apps/user_ldap/lib/Command/DeleteConfig.php
+++ b/apps/user_ldap/lib/Command/DeleteConfig.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Command/ResetGroup.php b/apps/user_ldap/lib/Command/ResetGroup.php
index 89d3f31f69dfe..d73bec1eef391 100644
--- a/apps/user_ldap/lib/Command/ResetGroup.php
+++ b/apps/user_ldap/lib/Command/ResetGroup.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Command/ResetUser.php b/apps/user_ldap/lib/Command/ResetUser.php
index 58dfbf685198f..11ca3d665836c 100644
--- a/apps/user_ldap/lib/Command/ResetUser.php
+++ b/apps/user_ldap/lib/Command/ResetUser.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2021 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Command/Search.php b/apps/user_ldap/lib/Command/Search.php
index fe1b9f3498835..40b93ade493fa 100644
--- a/apps/user_ldap/lib/Command/Search.php
+++ b/apps/user_ldap/lib/Command/Search.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Command/SetConfig.php b/apps/user_ldap/lib/Command/SetConfig.php
index 3a2bc4437e302..09ed5bdad95ff 100644
--- a/apps/user_ldap/lib/Command/SetConfig.php
+++ b/apps/user_ldap/lib/Command/SetConfig.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Command/ShowConfig.php b/apps/user_ldap/lib/Command/ShowConfig.php
index fa021192ac4bc..b2b3928801363 100644
--- a/apps/user_ldap/lib/Command/ShowConfig.php
+++ b/apps/user_ldap/lib/Command/ShowConfig.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Command/ShowRemnants.php b/apps/user_ldap/lib/Command/ShowRemnants.php
index d255aac136896..cb107880ed3e9 100644
--- a/apps/user_ldap/lib/Command/ShowRemnants.php
+++ b/apps/user_ldap/lib/Command/ShowRemnants.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Command/TestConfig.php b/apps/user_ldap/lib/Command/TestConfig.php
index 77eaac91d8590..edb4f3688121d 100644
--- a/apps/user_ldap/lib/Command/TestConfig.php
+++ b/apps/user_ldap/lib/Command/TestConfig.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Configuration.php b/apps/user_ldap/lib/Configuration.php
index 77f8ed0575f1f..963242b5dd0ef 100644
--- a/apps/user_ldap/lib/Configuration.php
+++ b/apps/user_ldap/lib/Configuration.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Connection.php b/apps/user_ldap/lib/Connection.php
index f0b1fa17ee64e..dd36bdbd1abb5 100644
--- a/apps/user_ldap/lib/Connection.php
+++ b/apps/user_ldap/lib/Connection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/ConnectionFactory.php b/apps/user_ldap/lib/ConnectionFactory.php
index fbc30f6b73f9f..904a202ad755c 100644
--- a/apps/user_ldap/lib/ConnectionFactory.php
+++ b/apps/user_ldap/lib/ConnectionFactory.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Controller/ConfigAPIController.php b/apps/user_ldap/lib/Controller/ConfigAPIController.php
index 8ce2486c153ab..6e96d9e968cf5 100644
--- a/apps/user_ldap/lib/Controller/ConfigAPIController.php
+++ b/apps/user_ldap/lib/Controller/ConfigAPIController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Controller/RenewPasswordController.php b/apps/user_ldap/lib/Controller/RenewPasswordController.php
index 275e2671bf764..b4834608fd74f 100644
--- a/apps/user_ldap/lib/Controller/RenewPasswordController.php
+++ b/apps/user_ldap/lib/Controller/RenewPasswordController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Exceptions/AttributeNotSet.php b/apps/user_ldap/lib/Exceptions/AttributeNotSet.php
index 35df63518b4ab..73465c1daad25 100644
--- a/apps/user_ldap/lib/Exceptions/AttributeNotSet.php
+++ b/apps/user_ldap/lib/Exceptions/AttributeNotSet.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Exceptions/ConstraintViolationException.php b/apps/user_ldap/lib/Exceptions/ConstraintViolationException.php
index f468abd228206..22ce85da354cb 100644
--- a/apps/user_ldap/lib/Exceptions/ConstraintViolationException.php
+++ b/apps/user_ldap/lib/Exceptions/ConstraintViolationException.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Exceptions/NotOnLDAP.php b/apps/user_ldap/lib/Exceptions/NotOnLDAP.php
index 8f3d8fc3499bb..4c4301130f231 100644
--- a/apps/user_ldap/lib/Exceptions/NotOnLDAP.php
+++ b/apps/user_ldap/lib/Exceptions/NotOnLDAP.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/FilesystemHelper.php b/apps/user_ldap/lib/FilesystemHelper.php
index eea7ec62ad8de..58014195b2d19 100644
--- a/apps/user_ldap/lib/FilesystemHelper.php
+++ b/apps/user_ldap/lib/FilesystemHelper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/GroupPluginManager.php b/apps/user_ldap/lib/GroupPluginManager.php
index 6bdb5559a0224..10eb78d474d19 100644
--- a/apps/user_ldap/lib/GroupPluginManager.php
+++ b/apps/user_ldap/lib/GroupPluginManager.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Group_LDAP.php b/apps/user_ldap/lib/Group_LDAP.php
index 2c99fadfcc94d..d4c4e72e970a9 100644
--- a/apps/user_ldap/lib/Group_LDAP.php
+++ b/apps/user_ldap/lib/Group_LDAP.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Group_Proxy.php b/apps/user_ldap/lib/Group_Proxy.php
index 11b7498fbed7e..58e81b380f62a 100644
--- a/apps/user_ldap/lib/Group_Proxy.php
+++ b/apps/user_ldap/lib/Group_Proxy.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Handler/ExtStorageConfigHandler.php b/apps/user_ldap/lib/Handler/ExtStorageConfigHandler.php
index d4a8f332362ae..8c2fd09b54f90 100644
--- a/apps/user_ldap/lib/Handler/ExtStorageConfigHandler.php
+++ b/apps/user_ldap/lib/Handler/ExtStorageConfigHandler.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Helper.php b/apps/user_ldap/lib/Helper.php
index 09be9e081e584..7e6a799ee6211 100644
--- a/apps/user_ldap/lib/Helper.php
+++ b/apps/user_ldap/lib/Helper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/IGroupLDAP.php b/apps/user_ldap/lib/IGroupLDAP.php
index 764e0c88e643e..e10e4fe10b435 100644
--- a/apps/user_ldap/lib/IGroupLDAP.php
+++ b/apps/user_ldap/lib/IGroupLDAP.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/ILDAPGroupPlugin.php b/apps/user_ldap/lib/ILDAPGroupPlugin.php
index d601e3a6548b1..bb9a5a6066e89 100644
--- a/apps/user_ldap/lib/ILDAPGroupPlugin.php
+++ b/apps/user_ldap/lib/ILDAPGroupPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/ILDAPUserPlugin.php b/apps/user_ldap/lib/ILDAPUserPlugin.php
index 3dbda1f6a99c5..1490378410221 100644
--- a/apps/user_ldap/lib/ILDAPUserPlugin.php
+++ b/apps/user_ldap/lib/ILDAPUserPlugin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/ILDAPWrapper.php b/apps/user_ldap/lib/ILDAPWrapper.php
index de2b9c502412b..e2798092d4a9b 100644
--- a/apps/user_ldap/lib/ILDAPWrapper.php
+++ b/apps/user_ldap/lib/ILDAPWrapper.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/IUserLDAP.php b/apps/user_ldap/lib/IUserLDAP.php
index 6fcd68c0c014a..b1a4f9ac586a1 100644
--- a/apps/user_ldap/lib/IUserLDAP.php
+++ b/apps/user_ldap/lib/IUserLDAP.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Jobs/CleanUp.php b/apps/user_ldap/lib/Jobs/CleanUp.php
index 6e62441942468..fdb0d37e79558 100644
--- a/apps/user_ldap/lib/Jobs/CleanUp.php
+++ b/apps/user_ldap/lib/Jobs/CleanUp.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Jobs/Sync.php b/apps/user_ldap/lib/Jobs/Sync.php
index 26888ae96aeb1..9154e2d1fad62 100644
--- a/apps/user_ldap/lib/Jobs/Sync.php
+++ b/apps/user_ldap/lib/Jobs/Sync.php
@@ -1,10 +1,11 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\User_LDAP\Jobs;
 
 use OC\ServerNotAvailableException;
diff --git a/apps/user_ldap/lib/LDAP.php b/apps/user_ldap/lib/LDAP.php
index 44d8493b925c5..372246ae7064b 100644
--- a/apps/user_ldap/lib/LDAP.php
+++ b/apps/user_ldap/lib/LDAP.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/LDAPProvider.php b/apps/user_ldap/lib/LDAPProvider.php
index d9750ae3fcf3d..c5f1aa08d7cf1 100644
--- a/apps/user_ldap/lib/LDAPProvider.php
+++ b/apps/user_ldap/lib/LDAPProvider.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
diff --git a/apps/user_ldap/lib/LDAPProviderFactory.php b/apps/user_ldap/lib/LDAPProviderFactory.php
index 8fad9d52206ab..77d1188214b99 100644
--- a/apps/user_ldap/lib/LDAPProviderFactory.php
+++ b/apps/user_ldap/lib/LDAPProviderFactory.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
diff --git a/apps/user_ldap/lib/LDAPUtility.php b/apps/user_ldap/lib/LDAPUtility.php
index 39b517528e2be..b9cbc70a82dd6 100644
--- a/apps/user_ldap/lib/LDAPUtility.php
+++ b/apps/user_ldap/lib/LDAPUtility.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Mapping/AbstractMapping.php b/apps/user_ldap/lib/Mapping/AbstractMapping.php
index fa10312a915f4..072e3ca5a50f7 100644
--- a/apps/user_ldap/lib/Mapping/AbstractMapping.php
+++ b/apps/user_ldap/lib/Mapping/AbstractMapping.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Mapping/GroupMapping.php b/apps/user_ldap/lib/Mapping/GroupMapping.php
index d9ae5e749fc7d..bd8ed8d64fd32 100644
--- a/apps/user_ldap/lib/Mapping/GroupMapping.php
+++ b/apps/user_ldap/lib/Mapping/GroupMapping.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Mapping/UserMapping.php b/apps/user_ldap/lib/Mapping/UserMapping.php
index a030cd0ab52c6..2cd883f38fb75 100644
--- a/apps/user_ldap/lib/Mapping/UserMapping.php
+++ b/apps/user_ldap/lib/Mapping/UserMapping.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Migration/UUIDFix.php b/apps/user_ldap/lib/Migration/UUIDFix.php
index 309910cdf0cc6..5fbfd55516ad0 100644
--- a/apps/user_ldap/lib/Migration/UUIDFix.php
+++ b/apps/user_ldap/lib/Migration/UUIDFix.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Migration/UUIDFixGroup.php b/apps/user_ldap/lib/Migration/UUIDFixGroup.php
index 4d039a72ebc54..58e157eccbcec 100644
--- a/apps/user_ldap/lib/Migration/UUIDFixGroup.php
+++ b/apps/user_ldap/lib/Migration/UUIDFixGroup.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Migration/UUIDFixInsert.php b/apps/user_ldap/lib/Migration/UUIDFixInsert.php
index de777f6f01072..d24c77cfc75f6 100644
--- a/apps/user_ldap/lib/Migration/UUIDFixInsert.php
+++ b/apps/user_ldap/lib/Migration/UUIDFixInsert.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Migration/UUIDFixUser.php b/apps/user_ldap/lib/Migration/UUIDFixUser.php
index 0c292a2c2aec2..9ca028d1f8ac0 100644
--- a/apps/user_ldap/lib/Migration/UUIDFixUser.php
+++ b/apps/user_ldap/lib/Migration/UUIDFixUser.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Notification/Notifier.php b/apps/user_ldap/lib/Notification/Notifier.php
index 8d8bc8be5a3c3..08882f7f52b47 100644
--- a/apps/user_ldap/lib/Notification/Notifier.php
+++ b/apps/user_ldap/lib/Notification/Notifier.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Proxy.php b/apps/user_ldap/lib/Proxy.php
index ab8b9f451f050..ee33cf1eecadf 100644
--- a/apps/user_ldap/lib/Proxy.php
+++ b/apps/user_ldap/lib/Proxy.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Service/BirthdateParserService.php b/apps/user_ldap/lib/Service/BirthdateParserService.php
index 8234161b3d8a2..189b440843d76 100644
--- a/apps/user_ldap/lib/Service/BirthdateParserService.php
+++ b/apps/user_ldap/lib/Service/BirthdateParserService.php
@@ -1,10 +1,11 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\User_LDAP\Service;
 
 use DateTimeImmutable;
diff --git a/apps/user_ldap/lib/Settings/Admin.php b/apps/user_ldap/lib/Settings/Admin.php
index 80d1e6437f7e3..7fc501470f14f 100644
--- a/apps/user_ldap/lib/Settings/Admin.php
+++ b/apps/user_ldap/lib/Settings/Admin.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/Settings/Section.php b/apps/user_ldap/lib/Settings/Section.php
index 6e342279f46cb..8abc77cb328b1 100644
--- a/apps/user_ldap/lib/Settings/Section.php
+++ b/apps/user_ldap/lib/Settings/Section.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/User/DeletedUsersIndex.php b/apps/user_ldap/lib/User/DeletedUsersIndex.php
index 9ce78f15d8b66..a7c73e7d3df21 100644
--- a/apps/user_ldap/lib/User/DeletedUsersIndex.php
+++ b/apps/user_ldap/lib/User/DeletedUsersIndex.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
diff --git a/apps/user_ldap/lib/User/Manager.php b/apps/user_ldap/lib/User/Manager.php
index 2b09d42572139..003e7ebac21bc 100644
--- a/apps/user_ldap/lib/User/Manager.php
+++ b/apps/user_ldap/lib/User/Manager.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/User/OfflineUser.php b/apps/user_ldap/lib/User/OfflineUser.php
index ecaab7188ba37..8b4b3d9de24af 100644
--- a/apps/user_ldap/lib/User/OfflineUser.php
+++ b/apps/user_ldap/lib/User/OfflineUser.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/User/User.php b/apps/user_ldap/lib/User/User.php
index 7ef36ff1512f1..83a158c24ba93 100644
--- a/apps/user_ldap/lib/User/User.php
+++ b/apps/user_ldap/lib/User/User.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/UserPluginManager.php b/apps/user_ldap/lib/UserPluginManager.php
index bbcf4157016b4..b920984a67c7b 100644
--- a/apps/user_ldap/lib/UserPluginManager.php
+++ b/apps/user_ldap/lib/UserPluginManager.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/lib/User_LDAP.php b/apps/user_ldap/lib/User_LDAP.php
index 6970a52d3d7ed..0632fe8c219ef 100644
--- a/apps/user_ldap/lib/User_LDAP.php
+++ b/apps/user_ldap/lib/User_LDAP.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/User_Proxy.php b/apps/user_ldap/lib/User_Proxy.php
index 7786b8f0497df..800d8e321cb19 100644
--- a/apps/user_ldap/lib/User_Proxy.php
+++ b/apps/user_ldap/lib/User_Proxy.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/lib/Wizard.php b/apps/user_ldap/lib/Wizard.php
index 6df5aba4cac80..d5232c6ad130c 100644
--- a/apps/user_ldap/lib/Wizard.php
+++ b/apps/user_ldap/lib/Wizard.php
@@ -1,11 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
  * SPDX-License-Identifier: AGPL-3.0-only
  */
-
 namespace OCA\User_LDAP;
 
 use OC\ServerNotAvailableException;
diff --git a/apps/user_ldap/lib/WizardResult.php b/apps/user_ldap/lib/WizardResult.php
index 09aadd2b781eb..afd64b81aa244 100644
--- a/apps/user_ldap/lib/WizardResult.php
+++ b/apps/user_ldap/lib/WizardResult.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/templates/part.settingcontrols.php b/apps/user_ldap/templates/part.settingcontrols.php
index 4105fa751b9e4..59d7a47d21272 100644
--- a/apps/user_ldap/templates/part.settingcontrols.php
+++ b/apps/user_ldap/templates/part.settingcontrols.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2013-2017 ownCloud, Inc.
diff --git a/apps/user_ldap/templates/part.wizard-groupfilter.php b/apps/user_ldap/templates/part.wizard-groupfilter.php
index bab08d85da8ca..45df86d7e50d9 100644
--- a/apps/user_ldap/templates/part.wizard-groupfilter.php
+++ b/apps/user_ldap/templates/part.wizard-groupfilter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2013-2015 ownCloud, Inc.
diff --git a/apps/user_ldap/templates/part.wizard-loginfilter.php b/apps/user_ldap/templates/part.wizard-loginfilter.php
index 541a5c06c8c76..55176ff569877 100644
--- a/apps/user_ldap/templates/part.wizard-loginfilter.php
+++ b/apps/user_ldap/templates/part.wizard-loginfilter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2013-2017 ownCloud, Inc.
diff --git a/apps/user_ldap/templates/part.wizard-server.php b/apps/user_ldap/templates/part.wizard-server.php
index 9fb67342247cc..0deaf4cc14790 100644
--- a/apps/user_ldap/templates/part.wizard-server.php
+++ b/apps/user_ldap/templates/part.wizard-server.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2013-2017 ownCloud, Inc.
diff --git a/apps/user_ldap/templates/part.wizard-userfilter.php b/apps/user_ldap/templates/part.wizard-userfilter.php
index ab505c65d4405..64bf180547111 100644
--- a/apps/user_ldap/templates/part.wizard-userfilter.php
+++ b/apps/user_ldap/templates/part.wizard-userfilter.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2013-2016 ownCloud, Inc.
diff --git a/apps/user_ldap/templates/part.wizardcontrols.php b/apps/user_ldap/templates/part.wizardcontrols.php
index 2c6b1f16d675a..8e5f4370bc259 100644
--- a/apps/user_ldap/templates/part.wizardcontrols.php
+++ b/apps/user_ldap/templates/part.wizardcontrols.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2022 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2013-2017 ownCloud, Inc.
diff --git a/apps/user_ldap/templates/renewpassword.php b/apps/user_ldap/templates/renewpassword.php
index 6f09230a88c6d..c3f735a979523 100644
--- a/apps/user_ldap/templates/renewpassword.php
+++ b/apps/user_ldap/templates/renewpassword.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/templates/settings.php b/apps/user_ldap/templates/settings.php
index 9117a9f533caa..512667d9e7b89 100644
--- a/apps/user_ldap/templates/settings.php
+++ b/apps/user_ldap/templates/settings.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2011-2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/AccessTest.php b/apps/user_ldap/tests/AccessTest.php
index 5bb4a4657cbed..8968d35e568fc 100644
--- a/apps/user_ldap/tests/AccessTest.php
+++ b/apps/user_ldap/tests/AccessTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/ConfigurationTest.php b/apps/user_ldap/tests/ConfigurationTest.php
index cced8334bf5be..14f334efd6d6d 100644
--- a/apps/user_ldap/tests/ConfigurationTest.php
+++ b/apps/user_ldap/tests/ConfigurationTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/ConnectionTest.php b/apps/user_ldap/tests/ConnectionTest.php
index 9cb19891b3dc4..87f437374d3cb 100644
--- a/apps/user_ldap/tests/ConnectionTest.php
+++ b/apps/user_ldap/tests/ConnectionTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/GroupLDAPPluginTest.php b/apps/user_ldap/tests/GroupLDAPPluginTest.php
index f67de32c2e9d6..ae8508c30fea2 100644
--- a/apps/user_ldap/tests/GroupLDAPPluginTest.php
+++ b/apps/user_ldap/tests/GroupLDAPPluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Group_LDAPTest.php b/apps/user_ldap/tests/Group_LDAPTest.php
index 13c5d35dce4aa..5cfb8092091db 100644
--- a/apps/user_ldap/tests/Group_LDAPTest.php
+++ b/apps/user_ldap/tests/Group_LDAPTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/HelperTest.php b/apps/user_ldap/tests/HelperTest.php
index 38c6a6393406c..391c8baa04f74 100644
--- a/apps/user_ldap/tests/HelperTest.php
+++ b/apps/user_ldap/tests/HelperTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Integration/AbstractIntegrationTest.php b/apps/user_ldap/tests/Integration/AbstractIntegrationTest.php
index 726342a88f772..623310d599a93 100644
--- a/apps/user_ldap/tests/Integration/AbstractIntegrationTest.php
+++ b/apps/user_ldap/tests/Integration/AbstractIntegrationTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/Bootstrap.php b/apps/user_ldap/tests/Integration/Bootstrap.php
index 1e270aa6f8a1f..5f2f50f95e3d2 100644
--- a/apps/user_ldap/tests/Integration/Bootstrap.php
+++ b/apps/user_ldap/tests/Integration/Bootstrap.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Integration/ExceptionOnLostConnection.php b/apps/user_ldap/tests/Integration/ExceptionOnLostConnection.php
index 78f6df9d7bcce..42faf2c96b1bb 100644
--- a/apps/user_ldap/tests/Integration/ExceptionOnLostConnection.php
+++ b/apps/user_ldap/tests/Integration/ExceptionOnLostConnection.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/Lib/IntegrationTestAttributeDetection.php b/apps/user_ldap/tests/Integration/Lib/IntegrationTestAttributeDetection.php
index 27d088617239a..69d6f70cfa176 100644
--- a/apps/user_ldap/tests/Integration/Lib/IntegrationTestAttributeDetection.php
+++ b/apps/user_ldap/tests/Integration/Lib/IntegrationTestAttributeDetection.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Integration/Lib/IntegrationTestCountUsersByLoginName.php b/apps/user_ldap/tests/Integration/Lib/IntegrationTestCountUsersByLoginName.php
index 8a1093e430424..2479e7b13ac58 100644
--- a/apps/user_ldap/tests/Integration/Lib/IntegrationTestCountUsersByLoginName.php
+++ b/apps/user_ldap/tests/Integration/Lib/IntegrationTestCountUsersByLoginName.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/Lib/IntegrationTestFetchUsersByLoginName.php b/apps/user_ldap/tests/Integration/Lib/IntegrationTestFetchUsersByLoginName.php
index fe7a3d2226a8c..a9660a3ffab52 100644
--- a/apps/user_ldap/tests/Integration/Lib/IntegrationTestFetchUsersByLoginName.php
+++ b/apps/user_ldap/tests/Integration/Lib/IntegrationTestFetchUsersByLoginName.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/Lib/IntegrationTestPaging.php b/apps/user_ldap/tests/Integration/Lib/IntegrationTestPaging.php
index e7b68735f6e52..2354d9f5031ce 100644
--- a/apps/user_ldap/tests/Integration/Lib/IntegrationTestPaging.php
+++ b/apps/user_ldap/tests/Integration/Lib/IntegrationTestPaging.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserAvatar.php b/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserAvatar.php
index 082c8ee46d49a..0c0e68546d592 100644
--- a/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserAvatar.php
+++ b/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserAvatar.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserCleanUp.php b/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserCleanUp.php
index ed637155e5a43..c5f0de931f810 100644
--- a/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserCleanUp.php
+++ b/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserCleanUp.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserDisplayName.php b/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserDisplayName.php
index e8f94dac4195f..06399f138db80 100644
--- a/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserDisplayName.php
+++ b/apps/user_ldap/tests/Integration/Lib/User/IntegrationTestUserDisplayName.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/setup-scripts/createExplicitGroups.php b/apps/user_ldap/tests/Integration/setup-scripts/createExplicitGroups.php
index 819c4c6e86082..ffdcdf001f8d2 100644
--- a/apps/user_ldap/tests/Integration/setup-scripts/createExplicitGroups.php
+++ b/apps/user_ldap/tests/Integration/setup-scripts/createExplicitGroups.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/setup-scripts/createExplicitGroupsDifferentOU.php b/apps/user_ldap/tests/Integration/setup-scripts/createExplicitGroupsDifferentOU.php
index b0a3cd46b4f1f..2ed5407b9c31b 100644
--- a/apps/user_ldap/tests/Integration/setup-scripts/createExplicitGroupsDifferentOU.php
+++ b/apps/user_ldap/tests/Integration/setup-scripts/createExplicitGroupsDifferentOU.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/setup-scripts/createExplicitUsers.php b/apps/user_ldap/tests/Integration/setup-scripts/createExplicitUsers.php
index 7137bd18a5876..f08152316a648 100644
--- a/apps/user_ldap/tests/Integration/setup-scripts/createExplicitUsers.php
+++ b/apps/user_ldap/tests/Integration/setup-scripts/createExplicitUsers.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Integration/setup-scripts/createUsersWithoutDisplayName.php b/apps/user_ldap/tests/Integration/setup-scripts/createUsersWithoutDisplayName.php
index 18584fbe7480d..481086b25c6dd 100644
--- a/apps/user_ldap/tests/Integration/setup-scripts/createUsersWithoutDisplayName.php
+++ b/apps/user_ldap/tests/Integration/setup-scripts/createUsersWithoutDisplayName.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Jobs/CleanUpTest.php b/apps/user_ldap/tests/Jobs/CleanUpTest.php
index 582b6fba5d78b..42716ce48da50 100644
--- a/apps/user_ldap/tests/Jobs/CleanUpTest.php
+++ b/apps/user_ldap/tests/Jobs/CleanUpTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Jobs/SyncTest.php b/apps/user_ldap/tests/Jobs/SyncTest.php
index 8277e7d48a9e4..ca1ed8869df8d 100644
--- a/apps/user_ldap/tests/Jobs/SyncTest.php
+++ b/apps/user_ldap/tests/Jobs/SyncTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/LDAPGroupPluginDummy.php b/apps/user_ldap/tests/LDAPGroupPluginDummy.php
index 0d47fbbd290c7..ac9ae2faf5762 100644
--- a/apps/user_ldap/tests/LDAPGroupPluginDummy.php
+++ b/apps/user_ldap/tests/LDAPGroupPluginDummy.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/LDAPProviderTest.php b/apps/user_ldap/tests/LDAPProviderTest.php
index 5888c6624f305..fa907357f8377 100644
--- a/apps/user_ldap/tests/LDAPProviderTest.php
+++ b/apps/user_ldap/tests/LDAPProviderTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/LDAPTest.php b/apps/user_ldap/tests/LDAPTest.php
index a29751555cbbb..e86c48375a509 100644
--- a/apps/user_ldap/tests/LDAPTest.php
+++ b/apps/user_ldap/tests/LDAPTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/LDAPUserPluginDummy.php b/apps/user_ldap/tests/LDAPUserPluginDummy.php
index f6edf3df63ba3..e023eb6868688 100644
--- a/apps/user_ldap/tests/LDAPUserPluginDummy.php
+++ b/apps/user_ldap/tests/LDAPUserPluginDummy.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Mapping/AbstractMappingTest.php b/apps/user_ldap/tests/Mapping/AbstractMappingTest.php
index b95856a0f4c09..9520bb7ee5a92 100644
--- a/apps/user_ldap/tests/Mapping/AbstractMappingTest.php
+++ b/apps/user_ldap/tests/Mapping/AbstractMappingTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Mapping/GroupMappingTest.php b/apps/user_ldap/tests/Mapping/GroupMappingTest.php
index efa42e478633b..7961488dbf7fa 100644
--- a/apps/user_ldap/tests/Mapping/GroupMappingTest.php
+++ b/apps/user_ldap/tests/Mapping/GroupMappingTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Mapping/UserMappingTest.php b/apps/user_ldap/tests/Mapping/UserMappingTest.php
index 07980ba470c79..9a3bbf83ecec2 100644
--- a/apps/user_ldap/tests/Mapping/UserMappingTest.php
+++ b/apps/user_ldap/tests/Mapping/UserMappingTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2019-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/Migration/AbstractUUIDFixTest.php b/apps/user_ldap/tests/Migration/AbstractUUIDFixTest.php
index f8abcaeb482c8..f2d9d0f2666d3 100644
--- a/apps/user_ldap/tests/Migration/AbstractUUIDFixTest.php
+++ b/apps/user_ldap/tests/Migration/AbstractUUIDFixTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Migration/UUIDFixGroupTest.php b/apps/user_ldap/tests/Migration/UUIDFixGroupTest.php
index ab8fe03d6d227..9db137cc73475 100644
--- a/apps/user_ldap/tests/Migration/UUIDFixGroupTest.php
+++ b/apps/user_ldap/tests/Migration/UUIDFixGroupTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Migration/UUIDFixInsertTest.php b/apps/user_ldap/tests/Migration/UUIDFixInsertTest.php
index f31da43c58434..6edeef3e19c66 100644
--- a/apps/user_ldap/tests/Migration/UUIDFixInsertTest.php
+++ b/apps/user_ldap/tests/Migration/UUIDFixInsertTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Migration/UUIDFixUserTest.php b/apps/user_ldap/tests/Migration/UUIDFixUserTest.php
index dfa1898450f4b..00364a7786473 100644
--- a/apps/user_ldap/tests/Migration/UUIDFixUserTest.php
+++ b/apps/user_ldap/tests/Migration/UUIDFixUserTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Service/BirthdateParserServiceTest.php b/apps/user_ldap/tests/Service/BirthdateParserServiceTest.php
index 79450d6913ed2..8a43e6b29d716 100644
--- a/apps/user_ldap/tests/Service/BirthdateParserServiceTest.php
+++ b/apps/user_ldap/tests/Service/BirthdateParserServiceTest.php
@@ -1,10 +1,11 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\user_ldap\tests\Service;
 
 use DateTimeImmutable;
diff --git a/apps/user_ldap/tests/Settings/AdminTest.php b/apps/user_ldap/tests/Settings/AdminTest.php
index 099cc09c06854..251c2b2a2193b 100644
--- a/apps/user_ldap/tests/Settings/AdminTest.php
+++ b/apps/user_ldap/tests/Settings/AdminTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/Settings/SectionTest.php b/apps/user_ldap/tests/Settings/SectionTest.php
index 722581713d1ba..17b18e6743fb0 100644
--- a/apps/user_ldap/tests/Settings/SectionTest.php
+++ b/apps/user_ldap/tests/Settings/SectionTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/User/DeletedUsersIndexTest.php b/apps/user_ldap/tests/User/DeletedUsersIndexTest.php
index 0e77f5023d561..c47907a33e38d 100644
--- a/apps/user_ldap/tests/User/DeletedUsersIndexTest.php
+++ b/apps/user_ldap/tests/User/DeletedUsersIndexTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/User/ManagerTest.php b/apps/user_ldap/tests/User/ManagerTest.php
index 449f159ec4d9d..8cc6db7441933 100644
--- a/apps/user_ldap/tests/User/ManagerTest.php
+++ b/apps/user_ldap/tests/User/ManagerTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/User/UserTest.php b/apps/user_ldap/tests/User/UserTest.php
index 3939c41c4ca0f..f20de3f809b83 100644
--- a/apps/user_ldap/tests/User/UserTest.php
+++ b/apps/user_ldap/tests/User/UserTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/UserLDAPPluginTest.php b/apps/user_ldap/tests/UserLDAPPluginTest.php
index 5f11f817771b0..5130816a51a53 100644
--- a/apps/user_ldap/tests/UserLDAPPluginTest.php
+++ b/apps/user_ldap/tests/UserLDAPPluginTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/User_LDAPTest.php b/apps/user_ldap/tests/User_LDAPTest.php
index 5b01b25109f3d..8ac703cac4f13 100644
--- a/apps/user_ldap/tests/User_LDAPTest.php
+++ b/apps/user_ldap/tests/User_LDAPTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/user_ldap/tests/User_ProxyTest.php b/apps/user_ldap/tests/User_ProxyTest.php
index 4544276a71413..9d7fb156c9793 100644
--- a/apps/user_ldap/tests/User_ProxyTest.php
+++ b/apps/user_ldap/tests/User_ProxyTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/user_ldap/tests/WizardTest.php b/apps/user_ldap/tests/WizardTest.php
index 31fd28e2fa128..78bb8aaa26bbd 100644
--- a/apps/user_ldap/tests/WizardTest.php
+++ b/apps/user_ldap/tests/WizardTest.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
diff --git a/apps/webhook_listeners/lib/Service/PHPMongoQuery.php b/apps/webhook_listeners/lib/Service/PHPMongoQuery.php
index d2668d1764487..4da36111a0c5f 100644
--- a/apps/webhook_listeners/lib/Service/PHPMongoQuery.php
+++ b/apps/webhook_listeners/lib/Service/PHPMongoQuery.php
@@ -1,11 +1,12 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2013 Akkroo Solutions Ltd
  * SPDX-FileCopyrightText: 2024 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
  */
-
 namespace OCA\WebhookListeners\Service;
 
 use Exception;
diff --git a/apps/workflowengine/appinfo/routes.php b/apps/workflowengine/appinfo/routes.php
index ffafd0b91a872..7937c65124c5c 100644
--- a/apps/workflowengine/appinfo/routes.php
+++ b/apps/workflowengine/appinfo/routes.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/AppInfo/Application.php b/apps/workflowengine/lib/AppInfo/Application.php
index 09aa4ed3896fc..ca4814a5c102a 100644
--- a/apps/workflowengine/lib/AppInfo/Application.php
+++ b/apps/workflowengine/lib/AppInfo/Application.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/BackgroundJobs/Rotate.php b/apps/workflowengine/lib/BackgroundJobs/Rotate.php
index fd3c76c524e1e..9d1ca75ff440c 100644
--- a/apps/workflowengine/lib/BackgroundJobs/Rotate.php
+++ b/apps/workflowengine/lib/BackgroundJobs/Rotate.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/AbstractStringCheck.php b/apps/workflowengine/lib/Check/AbstractStringCheck.php
index 4e56cda377e3c..a68f12f31bb78 100644
--- a/apps/workflowengine/lib/Check/AbstractStringCheck.php
+++ b/apps/workflowengine/lib/Check/AbstractStringCheck.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/FileMimeType.php b/apps/workflowengine/lib/Check/FileMimeType.php
index 3062994c6baf4..19e80eca6a0a6 100644
--- a/apps/workflowengine/lib/Check/FileMimeType.php
+++ b/apps/workflowengine/lib/Check/FileMimeType.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/FileSize.php b/apps/workflowengine/lib/Check/FileSize.php
index c1ee1d85ae965..20e2a4e4ce4aa 100644
--- a/apps/workflowengine/lib/Check/FileSize.php
+++ b/apps/workflowengine/lib/Check/FileSize.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/FileSystemTags.php b/apps/workflowengine/lib/Check/FileSystemTags.php
index bd1609e9aff89..69d5374d71aad 100644
--- a/apps/workflowengine/lib/Check/FileSystemTags.php
+++ b/apps/workflowengine/lib/Check/FileSystemTags.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/RequestRemoteAddress.php b/apps/workflowengine/lib/Check/RequestRemoteAddress.php
index 6fb5a3026d68f..781e9277f7bc7 100644
--- a/apps/workflowengine/lib/Check/RequestRemoteAddress.php
+++ b/apps/workflowengine/lib/Check/RequestRemoteAddress.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/RequestTime.php b/apps/workflowengine/lib/Check/RequestTime.php
index f4d2093dc5071..d82473dc5bba5 100644
--- a/apps/workflowengine/lib/Check/RequestTime.php
+++ b/apps/workflowengine/lib/Check/RequestTime.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/RequestURL.php b/apps/workflowengine/lib/Check/RequestURL.php
index 62d6dbc5c3800..cb57da4849e20 100644
--- a/apps/workflowengine/lib/Check/RequestURL.php
+++ b/apps/workflowengine/lib/Check/RequestURL.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/RequestUserAgent.php b/apps/workflowengine/lib/Check/RequestUserAgent.php
index 47db1bb0c68f1..2f5b7b2f37e4a 100644
--- a/apps/workflowengine/lib/Check/RequestUserAgent.php
+++ b/apps/workflowengine/lib/Check/RequestUserAgent.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Check/UserGroupMembership.php b/apps/workflowengine/lib/Check/UserGroupMembership.php
index 215557a75a9d3..94be748dd2c8e 100644
--- a/apps/workflowengine/lib/Check/UserGroupMembership.php
+++ b/apps/workflowengine/lib/Check/UserGroupMembership.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Controller/RequestTimeController.php b/apps/workflowengine/lib/Controller/RequestTimeController.php
index 1aca5d92d2ddf..121b169765513 100644
--- a/apps/workflowengine/lib/Controller/RequestTimeController.php
+++ b/apps/workflowengine/lib/Controller/RequestTimeController.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Manager.php b/apps/workflowengine/lib/Manager.php
index 7d14fc834491e..f6a86fcba14c7 100644
--- a/apps/workflowengine/lib/Manager.php
+++ b/apps/workflowengine/lib/Manager.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/lib/Settings/Section.php b/apps/workflowengine/lib/Settings/Section.php
index 5a13a9e4cec82..456bc12991584 100644
--- a/apps/workflowengine/lib/Settings/Section.php
+++ b/apps/workflowengine/lib/Settings/Section.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/templates/settings.php b/apps/workflowengine/templates/settings.php
index 2efd7fa17e7b2..03ef983ee4c06 100644
--- a/apps/workflowengine/templates/settings.php
+++ b/apps/workflowengine/templates/settings.php
@@ -1,4 +1,6 @@
 <?php
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/tests/Check/AbstractStringCheckTest.php b/apps/workflowengine/tests/Check/AbstractStringCheckTest.php
index 774f866bf127d..046a6c9be0eb1 100644
--- a/apps/workflowengine/tests/Check/AbstractStringCheckTest.php
+++ b/apps/workflowengine/tests/Check/AbstractStringCheckTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/tests/Check/RequestRemoteAddressTest.php b/apps/workflowengine/tests/Check/RequestRemoteAddressTest.php
index 47b9138819e7a..4c5fb46fbf3e1 100644
--- a/apps/workflowengine/tests/Check/RequestRemoteAddressTest.php
+++ b/apps/workflowengine/tests/Check/RequestRemoteAddressTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/tests/Check/RequestTimeTest.php b/apps/workflowengine/tests/Check/RequestTimeTest.php
index 6b56bb9427aab..705d34358f6cd 100644
--- a/apps/workflowengine/tests/Check/RequestTimeTest.php
+++ b/apps/workflowengine/tests/Check/RequestTimeTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/tests/Check/RequestUserAgentTest.php b/apps/workflowengine/tests/Check/RequestUserAgentTest.php
index cc5cf3209b3bf..da2f9396ddeb6 100644
--- a/apps/workflowengine/tests/Check/RequestUserAgentTest.php
+++ b/apps/workflowengine/tests/Check/RequestUserAgentTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2018 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/apps/workflowengine/tests/ManagerTest.php b/apps/workflowengine/tests/ManagerTest.php
index 610a7c60f1e71..03b37737ec334 100644
--- a/apps/workflowengine/tests/ManagerTest.php
+++ b/apps/workflowengine/tests/ManagerTest.php
@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2016 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
diff --git a/build/rector.php b/build/rector.php
index b6e46c1e53aaf..140380cf0ee8d 100644
--- a/build/rector.php
+++ b/build/rector.php
@@ -12,6 +12,7 @@
 use Rector\Config\RectorConfig;
 use Rector\Php80\Rector\Class_\ClassPropertyAssignToConstructorPromotionRector;
 use Rector\StaticTypeMapper\ValueObject\Type\FullyQualifiedObjectType;
+use Rector\TypeDeclaration\Rector\StmtsAwareInterface\DeclareStrictTypesRector;
 use Rector\ValueObject\Application\File;
 
 $nextcloudDir = dirname(__DIR__);
@@ -72,6 +73,8 @@ public function shouldSkip(File $file, FullyQualifiedObjectType $fullyQualifiedO
 	->withConfiguredRule(ClassPropertyAssignToConstructorPromotionRector::class, [
 		'inline_public' => true,
 		'rename_property' => true,
+	])->withRules([
+		DeclareStrictTypesRector::class,
 	]);
 
 $config->registerService(NextcloudNamespaceSkipVoter::class, tag:ClassNameImportSkipVoterInterface::class);