Fixed bug with opcode caches

src/MadeYourDay/Contao/CustomElements.php

@@ -16,6 +16,8 @@
  * Provide miscellaneous methods that are used by the data configuration arrays.
  *
  * @author Martin Auswöger <[email protected]>
+ * @todo   Create cache files with different names to be able to drop the
+ *         refreshOpcodeCache method
  */
 class CustomElements extends \Backend
 {
@@ -657,6 +659,7 @@ public static function purgeCache()
 			$file = new \File($filePath, true);
 			$file->write('');
 			$file->close();
+			static::refreshOpcodeCache($fileFullPath);
 		}
 	}
 
@@ -759,6 +762,7 @@ public static function loadConfig()
 		$file = new \File($filePath, true);
 		$file->write(implode("\n", $contents));
 		$file->close();
+		static::refreshOpcodeCache($fileFullPath);
 
 		if (file_exists($fileFullPath)) {
 			include $fileFullPath;
@@ -781,4 +785,56 @@ public static function reloadConfig()
 
 		return static::loadConfig();
 	}
+
+	/**
+	 * Refreshes all active opcode caches for the specified file
+	 *
+	 * @param  string $path Path to the file
+	 * @return boolean      True on success, false on failure
+	 */
+	protected static function refreshOpcodeCache($path)
+	{
+		try {
+
+			// Zend OPcache
+			if (function_exists('opcache_invalidate')) {
+				opcache_invalidate($path, true);
+			}
+
+			// Zend Optimizer+
+			if (function_exists('accelerator_reset')) {
+				accelerator_reset();
+			}
+
+			// APC
+			if (function_exists('apc_compile_file') && !ini_get('apc.stat')) {
+				apc_compile_file($path);
+			}
+
+			// eAccelerator
+			if (function_exists('eaccelerator_purge') && !ini_get('eaccelerator.check_mtime')) {
+				@eaccelerator_purge();
+			}
+
+			// XCache
+			if (function_exists('xcache_count') && !ini_get('xcache.stat')) {
+				if (($count = xcache_count(XC_TYPE_PHP)) > 0) {
+					for ($id = 0; $id < $count; $id++) {
+						xcache_clear_cache(XC_TYPE_PHP, $id);
+					}
+				}
+			}
+
+			// WinCache
+			if (function_exists('wincache_refresh_if_changed')) {
+				wincache_refresh_if_changed(array($path));
+			}
+
+		}
+		catch(\Exception $exception) {
+			return false;
+		}
+
+		return true;
+	}
 }