Türkçe karakter sorunu için değişiklik yapmıştık hocam substr(niphell[post_content],0,?) şuan yok var olan .mb_substr(strip_tags($niphell[post_content],0,150) koduna ekleme yaptım hata verdi

en son hali

<?php
echo '<!-- Wordpress Manset Eklentisi NipHeLL Tarafindan Kodlanmistir. bozlak216@gmail.com -->';
        $manset = mysql_query("SELECT * FROM ".$table_prefix."postmeta LEFT OUTER JOIN ".$table_prefix."posts ON ".$table_prefix."postmeta.post_id = ".$table_prefix."posts.id Where ".$table_prefix."postmeta.meta_key='manset' ORDER By ".$table_prefix."postmeta.post_id DESC Limit 8");
        for ($j=0; $niphell=mysql_fetch_array($manset); $j++){
        if ($j==0){ $durum = 'block'; }else{ $durum = 'none'; }
        if ($j%2==0){ $back = 'e9eaef'; }else{ $back = 'ffffff'; }
        $baslik .= '<div id=manset'.$j.'a style="DISPLAY: '.$durum.'">&nbsp;&nbsp;'.$niphell[post_title].'</div>
        ';
        $resim .= '<div id=manset'.$j.'c style="DISPLAY: '.$durum.'"><img width="190" height="150" alt="'.$niphell[post_title].'" style="padding:3px; border:1px solid #CACACA;" hspace="5" src="'.$niphell[meta_value].'"/></div>
        ';
        $baslik2 .= '<tr><td><div class="haber10" style="background-color:#'.$back.'"><a href="'.get_permalink($niphell[post_id]).'" target="_blank" onmouseover=showManset('.$j.')>&nbsp;<b>'.$niphell[post_title].'</b></a></div></td></tr>
		';
        $icerik .= '<div id=manset'.$j.'b style="DISPLAY: '.$durum.'"><font face="Arial" style="font-size:12px; "></font><br>'.mb_substr($niphell[post_content],0,150).' ...</div>
        ';
		
        $js .= "hide('manset".$j."a');hide('manset".$j."b');hide('manset".$j."c');
        ";
        }
?>

<script type="text/javascript">   
function showManset(divID)
    {
    //alert("aa");
    
    <?php echo $js; ?>
        


    document.getElementById('manset'+divID+'a').style.display = 'block';
    document.getElementById('manset'+divID+'b').style.display = 'block';
    document.getElementById('manset'+divID+'c').style.display = 'block';
    }

function hide(divID)
    {

    document.getElementById(''+divID+'').style.display = 'none';
    }
</script>

<table width="100%" border="0" cellspacing="0" cellpadding="2" class="haber_anasayfa">
  <tr>
    <td colspan="2" class="haber_baslik" align="justify" style="padding:5px 5px 5px 10px;">
        
<?php echo $baslik; ?>
    
    </td>
    
  </tr>
  <tr>
    <td width="190" align="center" valign="top">
<?php echo $resim; ?>

    </td>
    <td width="330" rowspan="2" valign="top">
    <table border="0" cellpadding="0" cellspacing="0" width="98%">
     
     <?php echo $baslik2; ?>

     </table>

    </td>
  </tr>
  <tr>
    <td background="<?php bloginfo('template_url'); ?>/images/tadaltbg.gif" />
    <?php echo $icerik; ?>
   
    </td>

  </tr>
</table>