Goal: I need to include an event snippet for specific tracking on the Woocommerce Order Confirmation page (the page immediately following a purchase). I must pass order_id, currency and total to the tracker. Here is the code I’ve written:
function wh_CustomReadOrder($order_id)
{
//getting order object
$order = wc_get_order($order_id);
echo "<script> gtag('event', 'conversion', { 'send_to': 'AW-995109926/CWeECK-epPYBEKbYwNoD', 'value': '".$order->get_total()."', 'currency': '".$order->currency."', 'transaction_id': '".$order_id."' }); </script>";
}
add_action('woocommerce_thankyou', 'wh_CustomReadOrder');
This includes the code correctly on the page and passes the relevant info to the tracker. But this code does not appear in the <head> of the page; it appears in the body.
Per instructions this code must be placed in the <head>.
I have not found a snippet plugin that allows for this kind of control. Is there another way I can achieve this?
If I were to include this code on all pages in the <head> but wrap it in an if statement that checks for the url, /checkout/order-received/{order-id}/ and fires if true, is that possible or there another way?
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Answer
You can use the following to inject your Javascript code in the head on “Order received” page:
add_action( 'wp_head', 'wc_custom_redirect_after_purchase' );
function wc_custom_redirect_after_purchase() {
if ( ! is_wc_endpoint_url('order-received') ) return;
global $wp;
// If order_id is defined
if ( isset($wp->query_vars['order-received']) && absint($wp->query_vars['order-received']) > 0 ) :
$order_id = absint($wp->query_vars['order-received']); // The order ID
$order = wc_get_order($order_id ); // The WC_Order object
$send_to = 'AW-995109926/CWeECK-epPYBEKbYwNoD';
$transaction_id = empty($order->get_transaction_id()) ? $order_id : $order->get_transaction_id(); // The transaction ID
?>
<script type="text/javascript">
gtag('event', 'conversion', {
'send_to' : '<?php echo $send_to; ?>',
'value' : '<?php echo $order->get_total(); ?>',
'currency' : '<?php echo $order->get_currency(); ?>',
'transaction_id': '<?php echo $transaction_id; ?>'
});
</script>
<?php
endif;
}
Code goes in functions.php file of the active child theme (or active theme). It should work.