prepare("SELECT * FROM orders WHERE order_no = ?"); $stmt->execute([$_GET['order_no']]); $search_order = $stmt->fetch(); if (!$search_order) { $error = '未找到该订单,请检查订单号是否正确'; } else { $stmt = db()->prepare("SELECT oi.*, p.name FROM order_items oi JOIN products p ON oi.product_id = p.id WHERE oi.order_id = ?"); $stmt->execute([$search_order['id']]); $search_order['items'] = $stmt->fetchAll(); } } ?>