| 1 |  |  | <?php | 
            
                                                                                                            
                            
            
                                    
            
            
                | 2 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 3 |  |  | if ( ! class_exists( 'FooGallery_Extensions_Loader' ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 4 |  |  | 	class FooGallery_Extensions_Loader { | 
                            
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                | 5 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 6 |  |  | 		function __construct() { | 
                            
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                | 7 |  |  | 			add_action( 'plugins_loaded', array( $this, 'load_active_extensions' ) ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 8 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 9 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 10 |  |  | 		/** | 
            
                                                                                                            
                            
            
                                    
            
            
                | 11 |  |  | 		 * Load all FooGallery extensions that have been activated. | 
            
                                                                                                            
                            
            
                                    
            
            
                | 12 |  |  | 		 * For each extension, create an instance of the extension class and add it to a global extensions array | 
            
                                                                                                            
                            
            
                                    
            
            
                | 13 |  |  | 		 */ | 
            
                                                                                                            
                            
            
                                    
            
            
                | 14 |  |  | 		function load_active_extensions() { | 
                            
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                | 15 |  |  | 			$action = foo_safe_get( $_POST, 'action'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 16 |  |  | 			if ( 'deactivate' === $action || 'heartbeat' === $action ) { return; } | 
            
                                                                                                            
                            
            
                                    
            
            
                | 17 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 18 |  |  | 			if ( ! function_exists( 'get_current_screen' ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 19 |  |  | 				require_once(ABSPATH . 'wp-admin/includes/screen.php'); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 20 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 21 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 22 |  |  | 			$api               = new FooGallery_Extensions_API(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 23 |  |  | 			$active_extensions = $api->get_active_extensions(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 24 |  |  | 			foreach ( $active_extensions as $slug => $class ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 25 |  |  | 				try { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 26 |  |  | 					$this->load_extension( $slug, $class ); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 27 |  |  | 				} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 28 |  |  | 				catch (Exception $e) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 29 |  |  | 					$error = $e; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 30 |  |  | 					$something = $error; | 
                            
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                | 31 |  |  | 				} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 32 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 33 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 34 |  |  | 			//What if no extensions were loaded? | 
            
                                                                                                            
                            
            
                                    
            
            
                | 35 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 36 |  |  |  | 
            
                                                                                                            
                            
            
                                    
            
            
                | 37 |  |  | 		function load_extension( $slug, $class ) { | 
                            
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                | 38 |  |  | 			global $foogallery_extensions; | 
                            
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                | 39 |  |  | 			global $foogallery_currently_loading; | 
                            
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                | 40 |  |  | 			if ( is_null( $foogallery_extensions ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 41 |  |  | 				$foogallery_extensions = array(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 42 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 43 |  |  | 			if ( class_exists( $class ) && !array_key_exists( $slug, $foogallery_extensions ) ) { | 
            
                                                                                                            
                            
            
                                    
            
            
                | 44 |  |  | 				$foogallery_currently_loading = $slug; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 45 |  |  | 				$instance = new $class(); | 
            
                                                                                                            
                            
            
                                    
            
            
                | 46 |  |  | 				$foogallery_extensions[ $slug ] = $instance; | 
            
                                                                                                            
                            
            
                                    
            
            
                | 47 |  |  | 			} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 48 |  |  | 		} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 49 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 50 |  |  | 		function handle_load_exceptions( $errno, $errstr, $errfile, $errline ) { | 
                            
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                | 51 |  |  | 			global $foogallery_currently_loading; | 
                            
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                | 52 |  |  | 			$api = new FooGallery_Extensions_API(); | 
            
                                                                        
                            
            
                                    
            
            
                | 53 |  |  | 			$api->deactivate( $foogallery_currently_loading, false, true ); | 
            
                                                                        
                            
            
                                    
            
            
                | 54 |  |  |  | 
            
                                                                        
                            
            
                                    
            
            
                | 55 |  |  | 			//don't execute PHP internal error handler | 
            
                                                                        
                            
            
                                    
            
            
                | 56 |  |  | 			return true; | 
            
                                                                        
                            
            
                                    
            
            
                | 57 |  |  | 		} | 
            
                                                                                                            
                            
            
                                    
            
            
                | 58 |  |  | 	} | 
            
                                                                                                            
                                                                
            
                                    
            
            
                | 59 |  |  | } | 
            
                                                        
            
                                    
            
            
                | 60 |  |  |  | 
            
                        
You can fix this by adding a namespace to your class:
When choosing a vendor namespace, try to pick something that is not too generic to avoid conflicts with other libraries.