<?php
function tr($yazi)
{
$bir=array('ç','ö','ş','ı','i');
$iki=array('Ç','Ö','Ş','I','İ');
$yazi=str_replace($bir,$iki,$yazi);
return $yazi; 
}

$bul = mysql_fetch_array(mysql_query("SELECT * FROM wp_posts WHERE ID='".$post->ID."'"));
echo tr(strtoupper($bul['post_title']));

?>