所有复选框都在退房

Question

我有一个问题。

我有一个带有数据库生成的复选框的页面。当我们按下复选框并提交它时，它工作正常，它正在数据库中更新。但是当我试图取消选中＆＃34; 1＆＃34;复选框，它会检出所有选中的复选框。

查询：

if(isset($_POST['submit'])){
                foreach ($_POST['untrain'] as $room_id => $user_id) {
                    // This query needs protection from SQL Injection!
                    $user_id;
                $untrainQuery = "UPDATE room_users SET trained = '1'  WHERE user_id = $user_id AND room_id = $room_id";
                $db->update($untrainQuery);

                }

                }

if(isset($_POST['submit'])){
                foreach ($_POST['amk'] as $room_id => $user_id) {
                    // This query needs protection from SQL Injection!
                    $user_id;
                $untrainedQuery = "UPDATE room_users SET trained = '0'  WHERE user_id = $user_id AND room_id = $room_id";
                $db->update($untrainedQuery);

                }

                }

复选框：

<?php if($room->trained == 1) { ?> <input type='hidden' value="<?php echo $room->user_id; ?>" name="amk[<?php echo $room->room_id; ?>]"> <input type='checkbox' value="<?php echo $room->user_id; ?>" name="trained[<?php echo $room->room_id; ?>]" checked> <?php echo "Y"; } else{ ?> <input type='checkbox' value="<?php echo $room->user_id; ?>" name="untrain[<?php echo $room->room_id; ?>]"> <?php echo "N"; }?> </td>
                <Td><?php if($room->active == 1) { ?> <input type='checkbox' name="<?php echo $room->room_id; ?>" checked> <?php echo "Active"; } else { ?> <input type='checkbox' name="<?php echo $room->room_id; ?>"  <?php echo "Inactive"; } ?>

我使用了＆＃34;技巧＆＃34;输入类型隐藏，但它检查所有选中的复选框..

提前致谢！