Orsdxy

Below is my code-

<?php

/**

* Copyright © Magento, Inc. All rights reserved.

 * See COPYING.txt for license details.

*/



// @codingStandardsIgnoreFile



?>

<?php /** @var $block MagentoCheckoutBlockOnepageSuccess */ ?>

<div class="checkout-success">

<?php if ($block->getOrderId()):?>

    <?php if ($block->getCanViewOrder()) :?>

        <p><?= __('Your order number is: %1.', sprintf('<a href="%s" class="order-number"><strong>%s</strong></a>', $block->escapeHtml($block->getViewOrderUrl()), $block->escapeHtml($block->getOrderId()))) ?></p>

    <?php  else :?>

        <p><?= __('Your order # is: <span>%1</span>.', $block->escapeHtml($block->getOrderId())) ?></p>

    <?php endif;?>

        <p><?= /* @escapeNotVerified */ __('We'll email you an order confirmation with details and tracking info.') ?></p>

<?php endif;?>

<?= $block->getAdditionalInfoHtml() ?>

<div class="actions-toolbar">

    <div class="primary">

        <a class="action primary continue" href="<?= /* @escapeNotVerified */ $block->getContinueUrl() ?>"><span><?= /* @escapeNotVerified */ __('Continue Shopping') ?></span></a>

    </div>

</div>

</div>

<script src="https://apis.google.com/js/platform.js?onload=renderOptIn" async defer></script>



<script>

window.renderOptIn = function() {

    window.gapi.load('surveyoptin', function() {

        window.gapi.surveyoptin.render(

            {

                // REQUIRED FIELDS

                "merchant_id": xxxxxx,

                "order_id": "<?= $data['orderid']; ?>",

                "email": "<?= $data['email']; ?>",

                "delivery_country": "<?= $data['country_id']; ?>",

                "estimated_delivery_date": "<?= $data['delivery_date']; ?>",



                // OPTIONAL FIELDS

                "products": [{"gtin":"GTIN1"}, {"gtin":"GTIN2"}]

            });

    });

}

I based it off of Cross-origin problem: Google Customer Reviews is not displaying on success page

And I get this error- Exception #0 (Exception): Notice: Undefined variable: data in /chroot/home/html/app/design/frontend/Magento_Checkout/templates/success.phtml on line 36

At the bottom I changed it out to this-

         "merchant_id": xxxxx,

         "order_id": "<?php echo $order->getIncrementId() ?>",

         "email": "<?php echo $order->getCustomerEmail() ?>",

         "delivery_country": "<?php echo $order->getShippingAddress()->getCountryId() ?>",

          "estimated_delivery_date": "YYYY-MM-DD"

Based on Magento 2 : Google Customer Reviews

I get the same error. What is the proper code?