创建订单时通过代码添加自定义订单项元数据遇阻

我试过多种代码方案都没奏效，最终通过自定义事件调用自定义钩子及函数，实现了创建包含已有产品且带有自定义订单项元数据的订单，相关代码如下：

function create_order($product_id, $customer_phone, $customer_email, $customer_name, $extra_service_id, $extra_service_name) {
    $args = array(
        'Service ID' => $extra_service_id,
        'Service Name' => $extra_service_name
    );
    $quantity = 1;
    $product = wc_get_product($product_id);
    $order = wc_create_order();
    $order->add_product( $product, $quantity, $args);
    
    $address = array(
        'first_name' => $customer_name,
        'email'      => $customer_email,
        'phone'      => $customer_phone
    );
    $order->set_address( $address, 'billing' );
    $order->set_status( 'wc-on-hold', 'Made in back-end' );
    $order->calculate_totals();
    $order->save();
}
add_action('create_order_hook', 'create_order', 10, 6);

关键说明 #

• 自定义钩子create_order_hook是触发订单创建的入口，调用时必须传入6个对应参数
• $args数组中的内容会作为订单项的自定义元数据绑定到对应产品条目上
• 订单默认设置为「待处理（wc-on-hold）」状态，备注标记为后台创建
• 调用calculate_totals()会自动计算订单的税费、运费等总额，确保订单数据完整

内容的提问来源于stack exchange，提问作者Pablo Savigne