iframe.php

См. документацию.

<?php
use Bitrix\Main\Localization\Loc;
Loc::loadMessages(__FILE__);
?>
<div class="mb-4" >
    <p><?= Loc::getMessage('SALE_HANDLERS_PAY_SYSTEM_TEMPLATE_ROBOXCHANGE_IFRAME_DESCRIPTION') ?></p>
    <p><?= Loc::getMessage('SALE_HANDLERS_PAY_SYSTEM_TEMPLATE_ROBOXCHANGE_IFRAME_SUM',
            [
                '#SUM#' => SaleFormatCurrency($params['SUM'], $params['CURRENCY']),
            ]
        ) ?></p>
    <div class="d-flex align-items-center mb-3">
        <div class="col-auto pl-0">
            <a class="btn btn-lg btn-success pl-4 pr-4" style="border-radius: 32px;" id="paysystem-roboxchange-button-pay" href="#"><?= Loc::getMessage('SALE_HANDLERS_PAY_SYSTEM_TEMPLATE_ROBOXCHANGE_IFRAME_BUTTON_PAID') ?></a>
        </div>
    </div>
    <div class="alert alert-info"><?= Loc::getMessage('SALE_HANDLERS_PAY_SYSTEM_TEMPLATE_ROBOXCHANGE_IFRAME_WARNING_RETURN') ?></div>
</div>
 
<script src="https://auth.robokassa.ru/Merchant/bundle/robokassa_iframe.js"></script>
<script>
    function showPaymentFrame(params)
    {
        Robokassa.StartPayment(params);
    }
 
    BX.ready(function(){
        var params = {
            MerchantLogin: "<?= CUtil::JSEscape($params['ROBOXCHANGE_SHOPLOGIN']) ?>",
            OutSum: "<?= CUtil::JSEscape($params['SUM']) ?>",
            InvId: "<?= CUtil::JSEscape($params['PAYMENT_ID']) ?>",
            Description: "<?= CUtil::JSEscape($params['ROBOXCHANGE_ORDERDESCR']) ?>",
            Culture: "<?= LANGUAGE_ID ?>",
            Encoding: "utf-8",
            SignatureValue: "<?= CUtil::JSEscape($params['SIGNATURE_VALUE']) ?>",
        }
 
        <?php if (!empty($params['OUT_SUM_CURRENCY'])):?>
            params.OutSumCurrency = "<?= CUtil::JSEscape($params['OUT_SUM_CURRENCY']) ?>";
        <?php endif; ?>
 
        <?php if ($params['PS_MODE']):?>
            params.IncCurrLabel = "<?= CUtil::JSEscape($params['PS_MODE']) ?>";
        <?php endif; ?>
 
        <?php if ($params['RECEIPT']):?>
            params.Receipt = "<?= CUtil::JSEscape($params['RECEIPT']) ?>";
        <?php endif; ?>
 
        var email = "<?= CUtil::JSEscape($params['BUYER_PERSON_EMAIL']) ?>";
        if (email)
        {
            params.Email = email;
        }
 
        var additionalUserFields = <?= CUtil::PhpToJSObject($params['ADDITIONAL_USER_FIELDS']) ?>;
        params = Object.assign(params, additionalUserFields);
 
        var isTest = "<?= CUtil::JSEscape($params['PS_IS_TEST']) ?>";
        if (isTest === 'Y')
        {
            params.IsTest = 1;
        }
 
        showPaymentFrame(params);
 
        BX.bind(BX('paysystem-roboxchange-button-pay'), 'click', BX.proxy(function () {
            showPaymentFrame(params);
        }, this));
    });
</script>