Google Customer Reviews OPT IN AT CHECKOUT

gistfile1.txt

/**
 * Adds the Google Customer Reviews opt-in form to the checkout confirmation page
 * Add your merchant ID where the placeholder "123456789" is.
 *
 * @param int|string $order_id WooCommerce order id
 *
 */
function google_customer_reviews_optin( $order_id ) {

	$order = new WC_Order( $order_id );

	?>
	<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": 123456789, // mywebsite.com
					  "order_id": "<?php echo esc_attr( $order->get_order_number() ); ?>",
					  "email": "<?php echo esc_attr( $order->get_billing_email() ); ?>",
					  "delivery_country": "<?php echo esc_attr( $order->get_billing_country() ); ?>",
					  "estimated_delivery_date": "<?php echo esc_attr( date( 'Y-m-d', strtotime( '+7 day', strtotime( $order->get_date_created() ) ) ) ); ?>",  // replace "5 day" with the estimated delivery time of your orders
					  "opt_in_style": "CENTER_DIALOG"
					});
				});
			  }</script>

	<?php
}
add_action( 'woocommerce_thankyou', 'google_customer_reviews_optin' );