<select name="stu_photo" class="select">
<option>Resim seçiniz</option>
<?
  if($dir = @opendir("d:/klasör")){
     while (($file = readdir($dir)) !== false){
        if($file != ".." && $file != "."){
           $filelist[] = $file;
           }
        }
     closedir($dir);
     }
  asort($filelist);
  while (list ($key, $val) = each ($filelist)){
     echo = "<option value=\"" . $val . "\">" . $val . "</option>";
     }
?>
</select>