D7 и Ajax

index.php

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

use \Bitrix\Main\Application;
use \Bitrix\Main\Web\Json;

$request = Application::getInstance()->getContext()->getRequest();

if($request->isAjaxRequest() && check_bitrix_sessid()){

    $res = true;
    $res &= (bool) $request->getPost('NAME');
    $res &= (bool) $request->getPost('PHONE');
    $res &= (bool) $request->getPost('EMAIL');
    $res &= (bool) $request->getPost('MESSAGE');
    $res &= (bool) $request->getPost('AGREEMENT');

    if($res){

        $arFields = array(
            'NAME' => $request->getPost('NAME'),
            'PHONE' => $request->getPost('PHONE'),
            'EMAIL' => $request->getPost('EMAIL'),
            'MESSAGE' => $request->getPost('MESSAGE'),
            'AGREEMENT' => $request->getPost('AGREEMENT'),
        );

        $res &= (bool) \CEvent::Send('FEEDBACK_FORM','s1',$arFields);
    }

    echo Json::encode(array(
        'status' => $res
    ));
    exit;
}