使用回调挂钩，我可以获得除到期日期之外的所有订阅信息。有没有想过如何抓住这个机会。这就是我所拥有的：

function mmd_woointerface_ProcessOrder($order_id) 
{
$order           = new WC_Order( $order_id );                  
$OrderNumber     = $order->parent_id;
$ParentOrder     = new WC_Order( $OrderNumber );
$TransactionId   = $ParentOrder->get_transaction_id();

$DatePaid                   = $order->date_created;
$SubscriptionNumber         = $order->get_order_number();
$PaymentDate                = $order->get_date_created()->format (\'Y-m-d\');
$ProductId                  = $product->get_product_id();  
$subscriptions              = wcs_get_users_subscriptions( $UserId );
foreach ($subscriptions as $sub)
  {
  if($sub->ID == $SubscriptionNumber)                              
  $ExpireDate = $sub->get_expiration_date( \'next_payment\' ); <<NOT ACCURATE
  $ExpireDate = WC_Subscriptions_Order::get_next_payment_date ( $ParentOrder, $ProductId  );   << SAME PROBLEM
  }
 }

这些电话：

 $ExpireDate = $sub->get_expiration_date( \'next_payment\' ); 

 $ExpireDate = WC_Subscriptions_Order::get_next_payment_date ( $ParentOrder, $ProductId  ); 

如果用户手动提前付款，则无效。它只返回下一个付款日期，而不是实际存储的到期日期

woocommerce_thankyou
woocommerce_payment_complete
woocommerce_checkout_order_processed
woocommerce_order_status_completed
woocommerce_subscription_payment_complete

WC_Subscriptions_Product::get_expiration_date( $ProductId );

WC_Subscription::get_date( \'end\' );