Büyük karakter Yapmak İstiyorum

<? 
function trle($linklink) {
$turkce = array('ş','Ş','ı','İ','ğ','Ğ','ü','Ü','ö','Ö','Ç','ç',' ','--','---');
$ingilizce = array('s','S','i','I','g','G','u','U','o','O','C','c','_','-','-');
$linklink = str_replace($turkce,$ingilizce,$linklink);
 $linklink=preg_replace("@[^A-Za-z0-9\-_]+@i","",$linklink);
return strtolower($linklink);
}


function tag($linklink) {
$turkce = array(' ','ş','Ş','ı','İ','ğ','Ğ','ü','Ü','ö','Ö','Ç','ç');
$ingilizce = array('','ş','Ş','ı','İ','ğ','Ğ','ü','Ü','ö','Ö','Ç','ç');
$linklink = str_replace($turkce,$ingilizce,$linklink);
return $linklink;
}
if (!function_exists("GetSQLValueString")) {
function GetSQLValueString($theValue, $theType, $theDefinedValue = "", $theNotDefinedValue = "") 
{
  $theValue = get_magic_quotes_gpc() ? stripslashes($theValue) : $theValue;

  $theValue = function_exists("mysql_real_escape_string") ? mysql_real_escape_string($theValue) : mysql_escape_string($theValue);

  switch ($theType) {
    case "text":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;    
    case "long":
    case "int":
      $theValue = ($theValue != "") ? intval($theValue) : "NULL";
      break;
    case "double":
      $theValue = ($theValue != "") ? "'" . doubleval($theValue) . "'" : "NULL";
      break;
    case "date":
      $theValue = ($theValue != "") ? "'" . $theValue . "'" : "NULL";
      break;
    case "defined":
      $theValue = ($theValue != "") ? $theDefinedValue : $theNotDefinedValue;
      break;
  }
  return $theValue;
}
}  


?>