Facebook tracking pixel on Thank you page

wc-facebook-tracking-pixel-thank-you-page

// Facebook tracking pixel on Thank you page
function fb_pixeltracking( $order_id ) {
   $order = new WC_Order( $order_id );
   $order_total = $order->get_total();
 ?>

    <!-- Facebook Conversion Code -->
    <script>(function() {
     var _fbq = window._fbq || (window._fbq = []);
     if (!_fbq.loaded) {
       var fbds = document.createElement('script');
       fbds.async = true;
       fbds.src = '//connect.facebook.net/en_US/fbds.js';
       var s = document.getElementsByTagName('script')[0];
       s.parentNode.insertBefore(fbds, s);
       _fbq.loaded = true;
     }
    })();
    window._fbq = window._fbq || [];
    window._fbq.push(['track', 'XXXXXXXXXXX', {'value':'<?php echo $order_total ?>','currency':'SEK'}]);
    </script>
    <noscript>
    <img height="1" width="1" alt="" style="display:none" src="https://www.facebook.com/trev=XXXXXXXXXXX&amp;cd[value]=<?php echo $order_total ?>&amp;cd[currency]=SEK&amp;noscript=1" />
    </noscript>
     <!-- END FB Tracking -->

<?php
}
add_action( 'woocommerce_thankyou', 'fb_pixeltracking', 30 );