src/WorkerF/Http/Route.php
protected static function _isVariableRoute($path)
    {
        $matched = [];

        preg_match_all(self::$_variable_regexp, $path, $matched);

        if (empty($matched[0])) {
            return FALSE;
        }

        return TRUE;
    }
protected static function _isVariableRoute($path)
    {
        $matched = [];

        preg_match_all(self::$_variable_regexp, $path, $matched);

        if (empty($matched[0])) {
            return FALSE;
        }

        return TRUE;
    }
check route is variable route or not.

@param  string  $path
@return boolean