public static function deleteAllCached() { foreach (self::$_cached as $url => $tempFile) { if (XenForo_Application::debugMode()) { $fileSize = @filesize($tempFile); } $deleted = @unlink($tempFile); if (XenForo_Application::debugMode()) { XenForo_Helper_File::log(__CLASS__, call_user_func_array('sprintf', array('delete %s -> %s, %s, %d bytes', $url, $tempFile, $deleted ? 'succeeded' : 'failed', !empty($fileSize) ? $fileSize : 0))); } } self::$_cached = array(); }