当我运行此代码时：
$req = $conn->query('SELECT max(id_work) FROM work');
$res = $req->fetchColumn();
$current_id = $res['id_work'];
$desired_dir="images/work/" . $max . "-" . $_POST['title'] . "/";
$req = $conn->prepare('INSERT INTO screenshot(link_screenshot, id_work)
VALUES (:link, :id_work)');
$req->execute(array(
'link_screenshot' => $desired_dir . "/" . $file_name,
'id_work' => $current_id)); //Line where I get from the error
我收到此错误：
警告：PDOStatement :: execute（）[pdostatement.execute]：SQLSTATE [HY093]：参数号无效：参数未在C：\ wamp \ www \ pcqsp-scratch \ admin.php中定义82
第82行：'id_work' => $current_id));
你对此有任何想法吗？谢谢:)）