Woocommerce上的自定义跟踪代码感谢您的页面

所以我在实现提取订单信息的自定义跟踪代码时遇到问题 .

这是我到目前为止在我的functions.php文件中得到的内容，但是当我进行购买时它实际上并没有显示任何信息 .

add_action( 'woocommerce_thankyou', 'conversion_tracking' );
function conversion_tracking() {

$order = wc_get_order( $order_id );

$order_id = $order->get_id;
$order_parent_id = $order->get_parent_id;
$order_status = $order->get_status;
$order_currency = $order->get_currency;
$order_version = $order->get_version;
$order_payment_method = $order->get_payment_method;
$order_payment_method_title = $order->get_payment_method_title;
$order_payment_method = $order->get_payment_method;
$order_payment_method = $order->get_payment_method;


?>
  <script type = 'text/javascript'>
      window.sovIframes = window.sovIframes || [];
      window.sovIframes.push({
        trafficSourceNumber : '',
        trafficMediumNumber : '',       
        timestamp : '<?php echo $order_timestamp_created ?>',
        orderId : '<?php echo $order_id ?>',
        orderValue : '<?php echo $order_total ?>',
        orderCurrency : '<?php echo $order_currency ?>',
      });
<?php
}

当我尝试使用此代码提取订单数据时：

$order = wc_get_order( $order_id );
$order_data = $order->get_data();

$order_id = $order_data['id'];
$order_parent_id = $order_data['parent_id'];
$order_status = $order_data['status'];
$order_currency = $order_data['currency'];
$order_version = $order_data['version'];
$order_payment_method = $order_data['payment_method'];
$order_payment_method_title = $order_data['payment_method_title'];
$order_payment_method = $order_data['payment_method'];
$order_payment_method = $order_data['payment_method'];

我收到以下错误：

致命错误：未捕获错误：在/home/feratino/www/REMOVED/wp-content/themes/REMOVED/functions.php:28中调用boolean上的成员函数get_data（）堆栈跟踪：0 / home / feratino / www /REMOVED/wp-includes/class-wp-hook.php(298）：sovendus_conversion_tracking（109947）1 /home/REMOVED/wp-includes/class-wp-hook.php(323）：WP_Hook-> apply_filters（NULL，数组）2 /home/feratino/www/REMOVED/wp-includes/plugin.php(453）：WP_Hook-> do_action（Array）3 / home / feratino / www / REMOVED / wp-content / plugins / woocommerce / templates / checkout / thankyou.php（74）：do_action（'woocommerce_tha ...'，109947）4 /home/feratino/www/REMOVED/wp-content/plugins/woocommerce/includes/wc-core-functions.php(204） ：include（'/ home / feratino / ...'）5 /home/feratino/www/REMOVED/wp-content/plugins/woocommerce/includes/shortcodes/class-wc-shortcode-checkout.php(205):wc_get_template （'checkout / thanky ...'，数组）6 / home / feratino / www / REMOVED / wp-content / plugins / woocommerce / includes / shortcodes / class-wc -s in / home / feratino / www / REMOVED / wp -content /日第28行的emes / REMOVED / functions.php

我的functions.php中的第28行：

$order_data = $order->get_data();