Proper Caching for Profile Images

dropplets/functions.php

@@ -299,14 +299,23 @@ function count_premium_templates($type = 'all') {
 define('IS_HOME', $is_home);
 
 /*-----------------------------------------------------------------------------------*/
-/* Get Profile Image (This Needs to be Cached)
+/* Get Profile Image
 /*-----------------------------------------------------------------------------------*/
 
 function get_twitter_profile_img($username) {
-
-    // Temporary fix for profile images.
-    $image_url = 'http://dropplets.com/profiles/?id='.$username.'';
-	return $image_url;
+
+	// Get the cached profile image.
+	$profile_image = './cache/'.$username.'.jpg';
+
+	// Cache the image if it doesn't already exist.
+	if (!file_exists($profile_image)) {
+	    $image_url = 'http://dropplets.com/profiles/?id='.$username.'';
+	    $image = file_get_contents($image_url);
+	    file_put_contents('./cache/'.$username.'.jpg', $image);
+	}
+
+	// Return the image URL.
+	return $profile_image;
 }
 
 /*-----------------------------------------------------------------------------------*/