Управление URL-адресами страниц в 1С-Битрикс D7

<?php
require_once($_SERVER['DOCUMENT_ROOT'].'/bitrix/modules/main/include/prolog_before.php');

use Bitrix\Main\Application;
use Bitrix\Main\Web\Uri;

$request = Application::getInstance()->getContext()->getRequest();
$uri = new Uri($request->getRequestUri());
$uri->addParams(['ref' => 'test']);
$uri->deleteParams(['utm_source']);

echo $uri->getUri();