WP Simple Pay: Google GA4 Payment Conversion Tracking

<?php

/**

 * @link https://library.wpcode.com/snippet/j57gxn45/

 */

add_action(

'simpay_payment_receipt_viewed',

/**

	 * Runs the first time the payment confirmation page is viewed.

	 * 

	 * @param array<string, mixed> $payment_confirmation_data

	 */

function( $payment_confirmation_data ) {

// Payment customer data (not used in this example).

$customer = $payment_confirmation_data['customer'];

// One-time payment data.

$payment = current( $payment_confirmation_data['paymentintents'] );

		printf(

'<script>

				gtag("event", "purchase", {

					transaction_id: "%s",

					value: %s,

					currency: "%s"

				} );

			</script>',

$payment->id,

$payment->amount / 100,

$payment->currency

		);

	}

);

// From: https://developers.google.com/analytics/devguides/collection/ga4/ecommerce?client_type=gtag#make_a_purchase_or_issue_a_refund