//文章body優(yōu)化替換
    function replaceurl($newurl)
     {
    global $dsql,$id;
    //獲取圖片附加表imgurls字段內(nèi)容進行處
    $row = $dsql->GetOne("SELECT title FROM dede_archives where id=$id");
    //去掉img的width和height
    $newurl=preg_replace('/style=/"width/:(.*)/"/','',$newurl);
    //替換圖片Alt為文檔標題
    $newurl=str_ireplace(array('alt=""','alt=/'/''),'',$newurl);
    $newurl=preg_replace("@ [/s]{0,}alt[/s]{0,}=[/"'/s]{0,}[/s/S]{0,}[/"'/s] @isU"," ",$newurl);
    $newurl=str_ireplace("<img " ,"<img  alt=/"".$row['title']."/"",$newurl);
    //去掉結(jié)尾空格
    $newurl=str_ireplace(" /","/",$newurl);
    $newurl=str_ireplace(" />","/>",$newurl);
    return $newurl;
     }