如何为dedecms织梦模板发布文章添加禁用词语过滤功能

if(!TestPurview('a_Check,a_AccCheck,a_MyCheck'))
    {
        $arcrank = -1;
    }

//词汇过滤检查
    if( $cfg_notallowstr != '' )
    {
        if(preg_match("#".$cfg_notallowstr."#i", $title))
        {
            ShowMsg("title has not allow words!","-1");
            exit();
        }
 
if(preg_match("#".$cfg_notallowstr."#i", $shorttitle))
        {
            ShowMsg("shorttitle has not allow words!！","-1");
            exit();
        }
 
if(preg_match("#".$cfg_notallowstr."#i", $description))
        {
            ShowMsg("description has not allow words!","-1");
            exit();
        }
        if(preg_match("#".$cfg_notallowstr."#i", $body))
        {
            ShowMsg("body has not allow words!","-1");
            exit();
        }
    }