Не получается, выдает ошибку:
Fatal error: Uncaught Error: Call to undefined function mysql_insert_id() in D:\OpenServer\OSPanel\domains\localhost\order.loc\vendor\delete_item.php:9 Stack trace: #0 {main} thrown in D:\OpenServer\OSPanel\domains\localhost\order.loc\vendor\delete_item.php on line 9
Строка 9, это header('Location: ../order.php?id=' . mysql_insert_id());
Fatal error: Uncaught Error: Call to undefined function mysql_insert_id() in D:\OpenServer\OSPanel\domains\localhost\order.loc\vendor\delete_item.php:9 Stack trace: #0 {main} thrown in D:\OpenServer\OSPanel\domains\localhost\order.loc\vendor\delete_item.php on line 9
Строка 9, это header('Location: ../order.php?id=' . mysql_insert_id());