public static function getMethod() {
        $method = self::getVar('REQUEST_METHOD', 'GET');

        if (isset($_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'])) {
            $method = $_SERVER['HTTP_X_HTTP_METHOD_OVERRIDE'];
        }
        elseif (isset($_REQUEST['_method'])) {
            $method = $_REQUEST['_method'];
        }

        return strtoupper($method);
    }