function replaceurl($newurl)
{
global $dsql,$id;
//獲取圖片附加表imgurls字段內(nèi)容進(jìn)行處
$row = $dsql->GetOne("SELECT title FROM dede_archives where id=$id");
//替換圖片Alt為文檔標(biāo)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;
}

//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(jìn)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(biāo)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;
 }