//替換關鍵字function ReplaceKey($newstext,$classid=0){    global $empire,$dbtbpre,$public_r,$class_r;    if(empty($newstext)||$class_r[$classid]['keycid']==-1)    {return $newstext;}    $where='';    if(!empty($class_r[$classid]['keycid']))    {        $where=" where cid='".$class_r[$classid]['keycid']."'";    }    $newstext=stripslashes($newstext);    preg_match_all('/<a[^>](.*)a>|<img[^>](.*)>/isU',stripslashes($newstext),$rs);       if($rs[0]){        foreach($rs[0] as $k=>$v){            $newstext=str_replace($v,"[!--{$k}--]",$newstext);         }    }    $sql=$empire->query("select keyname,keyurl from {$dbtbpre}enewskey".$where);    while($r=$empire->fetch($sql))    {        if(STR_IREPLACE)        {            $newstext=empty($public_r[repkeynum])?str_ireplace($r[keyname],'<a href='.$r[keyurl].' target=_blank class=infotextkey>'.$r[keyname].'</a>',$newstext):preg_replace('/'.$r[keyname].'/i','<a href='.$r[keyurl].' target=_blank class=infotextkey>'.$r[keyname].'</a>',$newstext,$public_r[repkeynum]);        }        else        {            $newstext=empty($public_r[repkeynum])?str_replace($r[keyname],'<a href='.$r[keyurl].' target=_blank class=infotextkey>'.$r[keyname].'</a>',$newstext):preg_replace('/'.$r[keyname].'/i','<a href='.$r[keyurl].' target=_blank class=infotextkey>'.$r[keyname].'</a>',$newstext,$public_r[repkeynum]);        }    }    if($rs[0]){        foreach($rs[0] as $k=>$v){            $newstext=str_replace("[!--{$k}--]",$v,$newstext);         }    }    return $newstext;}