function strtolower_tr($deger){ 
$deger = str_replace("Ç","ç",$deger); 
$deger = str_replace("Ğ","ğ",$deger); 
$deger = str_replace("İ","i",$deger); 
$deger = str_replace("I","ı",$deger); 
$deger = str_replace("Ö","ö",$deger); 
$deger = str_replace("Ü","ü",$deger); 
$deger = str_replace("Ş","ş",$deger); 
$deger = strtolower($deger); 
$deger = trim($deger); 
return $deger; 
}
'baslik'=>yf(ucwords(strtolower_tr($yoku['baslik'])))