⚠️ Please note that the V8 is an important (with small BC breaking) update of PhpFastCache !

As the V8 is relatively not compatible with previous versions, please read carefully the migration guide to ensure you the smoothest migration possible. One of the biggest change is the configuration system which is now an object that replace the primitive array that we used to implement back then. Also please note that the V8 requires at least PHP7.3 or higher to work properly.

❗ Be aware that the V8 is an LTS release, this means this version will be supported and maintained for at least 4 years.

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Simple Yet Powerful PHP Caching Class

More information in Wiki The simplicity of abstraction: One class for many backend cache. You don't need to rewrite your code many times again.

PHP7 Strict types enforced

As of the V7 PhpFastCache enforces the php7 strict types to make sure that it's completely php7 compatible and is type aware. This ensure you that the library is completely reliable when it come to manipulate variable types.

Supported drivers at this day *

💡 Feel free to propose a driver by making a new Pull Request, they are welcome !

Regular drivers	High performances drivers	Development drivers	Cluster-Aggregated drivers
Apcu (APC support removed)	Cassandra	Devnull	FullReplicationCluster
Cookie	CouchBase	Devfalse	SemiReplicationCluster
Files	Couchdb	Devtrue	MasterSlaveReplicationCluster
Leveldb	Mongodb	Memstatic	RandomReplicationCluster
Memcache(d)	Predis
Sqlite	Redis
Wincache	Riak
Zend Disk Cache	Ssdb
	Zend Memory Cache

* Driver descriptions available in DOCS/DRIVERS.md

Please note that as of PHP7 some php extensions were not yet updated (and will may not), we keep the code here but there's no guarantee that they are still working especially due to the cores changes introduced by Opcache. As of the V8 every abandoned backend drivers have been removed definitely from Phpfastcache.

Symfony/Drupal developers are not forgotten !

Starting with v5, Phpfastcache comes with a Symfony Bundle. It is now a mature project Flex -ready, so feel free to give at try and report any bug (if any). The Phpfastcache V8 is compatible as of the v4 of the phpfastcache bundle.

Also a Drupal 8 Module is currently in (a slow) development, add it to your starred projects to get notified of the first public release.

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Because caching does not means weaken your code

Phpfastcache has been developed over the years with 3 main goals:

• Performance: We optimized and still optimize the code to provide you the lightest library as possible
• Security: Because caching strategies can sometimes comes with unwanted vulnerabilities, we do our best to provide you a sage & strong library as possible
• Portability: No matter what operating system you're working on, we did our best to provide you the most cross-platform code as possible

---

Rich Development API

PhpFastCache provides you a lot of useful APIs:

Item API (ExtendedCacheItemInterface)

Method	Return	Description
addTag($tagName)	ExtendedCacheItemInterface	Adds a tag
addTags(array $tagNames)	ExtendedCacheItemInterface	Adds multiple tags
append($data)	ExtendedCacheItemInterface	Appends data to a string or an array (push)
decrement($step = 1)	ExtendedCacheItemInterface	Redundant joke...
expiresAfter($ttl)	ExtendedCacheItemInterface	Allows you to extends the lifetime of an entry without altering its value (formerly known as touch())
expiresAt($expiration)	ExtendedCacheItemInterface	Sets the expiration time for this cache item (as a DateTimeInterface object)
get()	mixed	The getter, obviously, returns your cache object
getCreationDate()	\DatetimeInterface	Gets the creation date for this cache item (as a DateTimeInterface object) *
getDataAsJsonString()	string	Return the data as a well-formatted json string
getEncodedKey()	string	Returns the final and internal item identifier (key), generally used for debug purposes
getExpirationDate()	ExtendedCacheItemInterface	Gets the expiration date as a Datetime object
getKey()	string	Returns the item identifier (key)
getLength()	int	Gets the data length if the data is a string, array, or objects that implement \Countable interface.
getModificationDate()	\DatetimeInterface	Gets the modification date for this cache item (as a DateTimeInterface object) *
getTags()	string[]	Gets the tags
getTagsAsString($separator = ', ')	string	Gets the data as a string separated by $separator
getTtl()	int	Gets the remaining Time To Live as an integer
increment($step = 1)	ExtendedCacheItemInterface	To allow us to count on an integer item
isEmpty()	bool	Checks if the data is empty or not despite the hit/miss status.
isExpired()	bool	Checks if your cache entry is expired
isHit()	bool	Checks if your cache entry exists and is still valid, it's the equivalent of isset()
isNull()	bool	Checks if the data is null or not despite the hit/miss status.
prepend($data)	ExtendedCacheItemInterface	Prepends data to a string or an array (unshift)
removeTag($tagName)	ExtendedCacheItemInterface	Removes a tag
removeTags(array $tagNames)	ExtendedCacheItemInterface	Removes multiple tags
set($value)	ExtendedCacheItemInterface	The setter, for those who missed it, can be anything except resources or non-serializer object (ex: PDO objects, file pointers, etc).
setCreationDate($expiration)	\DatetimeInterface	Sets the creation date for this cache item (as a DateTimeInterface object) *
setEventManager($evtMngr)	ExtendedCacheItemInterface	Sets the event manager
setExpirationDate()	ExtendedCacheItemInterface	Alias of expireAt() (for more code logic)
setModificationDate($expiration)	\DatetimeInterface	Sets the modification date for this cache item (as a DateTimeInterface object) *
setTags(array $tags)	ExtendedCacheItemInterface	Sets multiple tags

* Require configuration directive "itemDetailedDate" to be enabled, else a \LogicException will be thrown

ItemPool API (ExtendedCacheItemPoolInterface)

Methods (By Alphabetic Order)	Return	Description
appendItemsByTag($tagName, $data)	bool	Appends items by a tag
appendItemsByTags(array $tagNames, $data)	bool	Appends items by one of multiple tag names
attachItem($item)	void	(Re-)attaches an item to the pool
clear()	bool	Allows you to completely empty the cache and restart from the beginning
commit()	bool	Persists any deferred cache items
decrementItemsByTag($tagName, $step = 1)	bool	Decrements items by a tag
decrementItemsByTags(array $tagNames, $step = 1)	bool	Decrements items by one of multiple tag names
deleteItem($key)	bool	Deletes an item
deleteItems(array $keys)	bool	Deletes one or more items
deleteItemsByTag($tagName)	bool	Deletes items by a tag
deleteItemsByTags(array $tagNames)	bool	Deletes items by one of multiple tag names
detachItem($item)	void	Detaches an item from the pool
getConfig()	ConfigurationOption	Returns the configuration object
getConfigOption($optionName);	mixed	Returns a configuration value by its key $optionName
getDefaultConfig()	ConfigurationOption	Returns the default configuration object (not altered by the object instance)
getDriverName()	string	Returns the current driver name (without the namespace)
getEventManager()	EventManagerInterface	Gets the event manager
getHelp()	string	Provides a very basic help for a specific driver
getInstanceId()	string	Returns the instance ID
getItem($key)	ExtendedCacheItemInterface	Retrieves an item and returns an empty item if not found
getItems(array $keys)	ExtendedCacheItemInterface[]	Retrieves one or more item and returns an array of items
getItemsAsJsonString(array $keys)	string	Returns A json string that represents an array of items
getItemsByTag($tagName, $strategy)	ExtendedCacheItemInterface[]	Returns items by a tag
getItemsByTags(array $tagNames, $strategy)	ExtendedCacheItemInterface[]	Returns items by one of multiple tag names
getItemsByTagsAsJsonString(array $tagNames, $strategy)	string	Returns A json string that represents an array of items corresponding
getStats()	DriverStatistic	Returns the cache statistics as an object, useful for checking disk space used by the cache etc.
hasEventManager()	bool	Check the event manager
hasItem($key)	bool	Tests if an item exists
incrementItemsByTag($tagName, $step = 1, $strategy)	bool	Increments items by a tag
incrementItemsByTags(array $tagNames, $step = 1, $strategy)	bool	Increments items by one of multiple tag names
isAttached($item)	bool	Verify if an item is (still) attached
prependItemsByTag($tagName, $data, $strategy)	bool	Prepends items by a tag
prependItemsByTags(array $tagNames, $data, $strategy)	bool	Prepends items by one of multiple tag names
save(CacheItemInterface $item)	bool	Persists a cache item immediately
saveDeferred(CacheItemInterface $item)	bool	Sets a cache item to be persisted later
saveMultiple(...$items)	bool	Persists multiple cache items immediately
setEventManager(EventManagerInterface $evtMngr)	ExtendedCacheItemPoolInterface	Sets the event manager

🆕 in V8: Multiple strategies ($strategy) are now supported for tagging:

• TaggableCacheItemPoolInterface::TAG_STRATEGY_ONE allows you to get cache item(s) by at least ONE of the specified matching tag(s). Default behavior.
• TaggableCacheItemPoolInterface::TAG_STRATEGY_ALL allows you to get cache item(s) by ALL of the specified matching tag(s) (the cache item can have additional tag(s))
• TaggableCacheItemPoolInterface::TAG_STRATEGY_ONLY allows you to get cache item(s) by ONLY the specified matching tag(s) (the cache item cannot have additional tag(s))

It also supports multiple calls, Tagging, Setup Folder for caching. Look at our examples folders for more information.

PhpFastCache versioning API

PhpFastCache provides a class that gives you basic information about your PhpFastCache installation

• Get the API version (Item+Pool interface) with Phpfastcache\Api::GetVersion();
• Get the API changelog (Item+Pool interface) Phpfastcache\Api::getChangelog();
• Get the PhpFastCache version with Phpfastcache\Api::getPhpFastCacheVersion();
• Get the PhpFastCache changelog Phpfastcache\Api::getPhpFastCacheChangelog();

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Want to keep it simple ?

😅 Good news, as of the V6, a Psr16 adapter is provided to keep the cache simplest using very basic getters/setters:

• get($key, $default = null);
• set($key, $value, $ttl = null);
• delete($key);
• clear();
• getMultiple($keys, $default = null);
• setMultiple($values, $ttl = null);
• deleteMultiple($keys);
• has($key);

Basic usage:

<?php

use Phpfastcache\Helper\Psr16Adapter;

$defaultDriver = 'Files';
$Psr16Adapter = new Psr16Adapter($defaultDriver);

if(!$Psr16Adapter->has('test-key')){
    // Setter action
    $data = 'lorem ipsum';
    $Psr16Adapter->set('test-key', 'lorem ipsum', 300);// 5 minutes
}else{
    // Getter action
    $data = $Psr16Adapter->get('test-key');
}


/**
* Do your stuff with $data
*/

Internally, the Psr16 adapter calls the PhpFastCache Api via the cache manager.

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Introducing to events

📣 As of the V6, PhpFastCache provides an event mechanism. You can subscribe to an event by passing a Closure to an active event:

<?php

use Phpfastcache\EventManager;

/**
* Bind the event callback
*/
EventManager::getInstance()->onCacheGetItem(function(ExtendedCacheItemPoolInterface $itemPool, ExtendedCacheItemInterface $item){
    $item->set('[HACKED BY EVENT] ' . $item->get());
});

An event callback can get unbind but you MUST provide a name to the callback previously:

<?php
use Phpfastcache\EventManager;

/**
* Bind the event callback
*/
EventManager::getInstance()->onCacheGetItem(function(ExtendedCacheItemPoolInterface $itemPool, ExtendedCacheItemInterface $item){
    $item->set('[HACKED BY EVENT] ' . $item->get());
}, 'myCallbackName');


/**
* Unbind the event callback
*/
EventManager::getInstance()->unbindEventCallback('onCacheGetItem', 'myCallbackName');

🆕 As of the V8 you can simply subscribe to every events of Phpfastcache.

More information about the implementation and the events are available on the Wiki

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Introducing new helpers

📚 As of the V6, PhpFastCache provides some helpers to make your code easier.

• (:warning: Removed in v8, why ?) The ActOnAll Helper to help you to act on multiple instance at once.
• The CacheConditional Helper to help you to make the basic conditional statement more easier.
• The Psr16 adapter

May more will come in the future, feel free to contribute !

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Introducing aggregated cluster support

Check out the WIKI to learn how to implement aggregated cache clustering feature.

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As Fast To Implement As Opening a Beer

👍 Step 1: Include phpFastCache in your project with composer:

composer require phpfastcache/phpfastcache

🚧 Step 2: Setup your website code to implement the phpFastCache calls (with Composer)

<?php
use Phpfastcache\CacheManager;
use Phpfastcache\Config\ConfigurationOption;

// Setup File Path on your config files
// Please note that as of the V6.1 the "path" config 
// can also be used for Unix sockets (Redis, Memcache, etc)
CacheManager::setDefaultConfig(new ConfigurationOption([
    'path' => '/var/www/phpfastcache.com/dev/tmp', // or in windows "C:/tmp/"
]));

// In your class, function, you can call the Cache
$InstanceCache = CacheManager::getInstance('files');

/**
 * Try to get $products from Caching First
 * product_page is "identity keyword";
 */
$key = "product_page";
$CachedString = $InstanceCache->getItem($key);

$your_product_data = [
    'First product',
    'Second product',
    'Third product'
     /* ... */
];

if (!$CachedString->isHit()) {
    $CachedString->set($your_product_data)->expiresAfter(5);//in seconds, also accepts Datetime
	$InstanceCache->save($CachedString); // Save the cache item just like you do with doctrine and entities

    echo 'FIRST LOAD // WROTE OBJECT TO CACHE // RELOAD THE PAGE AND SEE // ';
    echo $CachedString->get();

} else {
    echo 'READ FROM CACHE // ';
    echo $CachedString->get()[0];// Will print 'First product'
}

/**
 * use your products here or return them;
 */
echo implode('<br />', $CachedString->get());// Will echo your product list

💾 Legacy support (Without Composer)

* See the file examples/withoutComposer.php for more information.
⚠️ The legacy autoload will be removed in the next major release ⚠️
Please include Phpfastcache through composer by running composer require phpfastcache/phpfastcache.

⚡ Step 3: Enjoy ! Your website is now faster than lightning !

For curious developers, there is a lot of other examples available here.

💥 Phpfastcache support

Found an issue or have an idea ? Come here and let us know !