<?
session_start();
$dil = "turkce";
session_register("$dil");
?>
 
<form method="post">
<input type="text" name="dil">
<input type="submit" name="submit" value="dil">
</form>

<?
session_start();
if(session_is_registered("$dil"))
{
$dil = $HTTP_SESSION_VARS["dil"];
}
?>