Nette\Http\Url::getAbsoluteUrl PHP Method

    public function getAbsoluteUrl()
    {
        return $this->getHostUrl() . $this->path . (($tmp = $this->getQuery()) ? '?' . $tmp : '') . ($this->fragment === '' ? '' : '#' . $this->fragment);
    }

 /**
  * @param Payment $payment
  * @return Payment
  */
 public static function addTrackingParameters(Payment $payment)
 {
     $resURL = $payment->getResURL();
     $url = new Url($resURL);
     $url->setQueryParameter('utm_nooverride', 1);
     $payment->setResURL($url->getAbsoluteUrl());
     return $payment;
 }