/** * * @param mixed $key * @param mixed $default * @param int $sanitizeFilter * @return mixed */ public static function params($key = null, $default = null, $sanitizeFilter = FILTER_SANITIZE_STRING) { if (null === $key) { return self::$_instance->getFunction()->getParams(); } return filter_var(self::$_instance->getFunction()->getParam($key, $default), $sanitizeFilter); }