WooCommerce Subscriptions – 在查看 WooCommerce 订阅相关订单时出现致命错误

问题概述

在启用 WPML 的情况下查看与 WooCommerce Subscriptions 相关的订单时，用户可能会遇到 PHP 致命错误：

PHP Fatal error:  Uncaught TypeError: Illegal offset type in isset or empty in .../wp-content/plugins/sitepress-multilingual-cms/classes/core-abstract-classes/class-wpml-element-translation.php:259

临时解决方法

在继续操作之前，请确保已对您的站点进行了完整备份。

• 打开 …/wp-content/plugins/woocommerce-subscriptions/vendor/woocommerce/subscriptions-core/includes/wcs-helper-functions.php 文件。
• 将：

  function wcs_get_edit_post_link( $post_id ) {
  	$object = wc_get_order( $post_id ); // works for both WC Order and WC Subscription objects.
  
  	if ( ! $object || ! in_array( $object->get_type(), array( 'shop_order', 'shop_subscription' ), true ) ) {
  		return;
  	}
  
  	return apply_filters( 'get_edit_post_link', $object->get_edit_order_url(), $post_id, '' );
  }

• 更改为：

  function wcs_get_edit_post_link( $post_id ) {
  	if ($post_id instanceof('WC_Subscription')){
  		$post_id = $post_id->id;
  		}
  	$object = wc_get_order( $post_id ); // works for both WC Order and WC Subscription objects.
  
  	if ( ! $object || ! in_array( $object->get_type(), array( 'shop_order', 'shop_subscription' ), true ) ) {
  		return;
  	}
  
  	return apply_filters( 'get_edit_post_link', $object->get_edit_order_url(), $post_id, '' );
  }

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