Question

我正在尝试升级我的代码以删除所选邮件。下面是我现有的代码，我想改变它，

<input type="hidden" name="action" value="delete" />
<input type="submit" name="deletebtn" value="Delete" onclick="if(!confirm('Are you sure you want to delete selected messages?')) return false;" />

$template->assign('script', 'messages');
if(isset($_POST['action']))
{
  $action = makesafe($_POST['action']);
  $ids = $_POST['msgid'];
  if(!empty($ids))
  {
  if($action == 'delete')
  {
          foreach($ids as $k => $v)
          {
                 if(!empty($v))
                 {

                    if(mysql_num_rows(mysql_query("SELECT * FROM messages WHERE receiver = '"logged id"' AND msg_id = '$v' LIMIT 1")))
                        {
                            if(mysql_query("DELETE FROM messages WHERE msg_id = $v AND receiver = '"logged id"' LIMIT 1"))
                                {
                                    $success_msg = "Message(s) Deleted.";
                                }
                        }
                 }
          }
  }
  }
}

我尝试使用此代码，但它不起作用，

<button type="submit" class="btn" name="delete" onclick="if(!confirm('Are you sure you want to delete selected links?')) return false;" > <i class="icol-cross"></i> Delete </button>

我还想验证用户是否单击了删除按钮而未选择任何消息（复选框）。

Answer 1

对于您的确认按钮，您应该使用以下代码：

<button type="submit" class="btn" name="delete" onclick="return confirm('Are you sure you want to delete selected links?')" > <i class="icol-cross"></i> Delete </button>

对于SQL语句，我不确定在两个查询中使用两个引号时你期望得到什么（又名＆＃39;＆＃34;登录＆＃34;＆＃39;），I认为你应该只使用一种，或者＃39;或\＆＃34;，因为您已经用双引号包装此查询。

祝你好运！

我更新的邮件删除按钮有什么问题？

1 个答案: