Pagekit\Routing\Event\RouterListener::parametersToString PHP Method

    public function parametersToString(array $parameters)
    {
        $pieces = [];
        foreach ($parameters as $key => $val) {
            $pieces[] = sprintf('"%s": "%s"', $key, is_string($val) ? $val : json_encode($val));
        }
        return implode(', ', $pieces);
    }