MemberPress footer tracking scripts on the thank you page

memberpress-footer-tracking-script-thank-you-page.php

<?php
function echo_mepr_tracking_script() {
  if(isset($_GET['membership']) && isset($_GET['trans_num'])) {
    $txn = MeprTransaction::get_one_by_trans_num($_GET['trans_num']);
    
    if(isset($txn->id) && $txn->id > 0) {
      $trans_id = $txn->id;
      $total = $txn->total;

      // Update total if recurring
      if($txn->subscription_id > 0) {
        $sub = new MeprSubscription($txn->subscription_id);

        if(isset($sub->id) && $sub->id > 0) {
          $trans_id = $sub->id; // Use subscription ID as the payment id for recurring subscriptions

          //Trial period?
          if($sub->trial) {
            $total = $sub->trial_amount;
          } else {
            $total = $sub->total;
          }
        }
      }

      ?>
        <script>
          var fh5coMeprTxnNum = '<?php echo urlencode($trans_id); ?>';
          var fh5coMeprTxnAmount = '<?php echo floatval($total); ?>';
          fbq('track', 'Purchase', {currency: "USD", value: fh5coMeprTxnAmount});
          ga('require', 'ecommerce');
          ga('ecommerce:addTransaction', {
            'id': fh5coMeprTxnNum,
            'revenue': fh5coMeprTxnAmount
          });
          ga('ecommerce:send');
        </script>
      <?php
    }
  }
}
add_action('wp_footer', 'echo_mepr_tracking_script');