result_rec.php

См. документацию.

<?if (!defined("B_PROLOG_INCLUDED") || B_PROLOG_INCLUDED !== true) die();?><?
 
use \Bitrix\Sale\Order;
 
$request = \Bitrix\Main\Application::getInstance()->getContext()->getRequest();
 
$entityId = ($request->get('custom') !== null) ? $request->get("custom") : $request->get("cm");
 
list($orderId, $paymentId) = \Bitrix\Sale\PaySystem\Manager::getIdsByPayment($entityId);
 
if ($orderId > 0)
{
    $order = Order::load($orderId);
    if ($order)
    {
        $paymentCollection = $order->getPaymentCollection();
        if ($paymentCollection && $paymentId > 0)
        {
            $payment = $paymentCollection->getItemById($paymentId);
            if ($payment)
            {
                $service = \Bitrix\Sale\PaySystem\Manager::getObjectById($payment->getPaymentSystemId());
                if ($service)
                    $service->processRequest($request);
            }
        }
    }
}