dedecms会员系统提示请不要发布重复文档解决方法

{     $row = $dsql->GetOne("Select * From `mydiy_archives` where title like '$title' ");     if(is_array($row))     {         ShowMsg("对不起，请不要发布重复文档！","-1","0",5000);         exit();     } } 

$row = $dsql->GetOne("Select * From `mydiy_archives` where title like '$title' and mid = '".$cfg_ml->M_ID."'");