This is all you need for pin code

if($_GET["stranica"]=="profil"){

if($_POST["fname"]){
	$profil = mysql_query('SELECT * FROM clients WHERE id=\''.$_SESSION["id"].'\'');
	$client = mysql_fetch_array($profil);
	if($client["email"]==$configs["email"]){
		$smarty->assign('porukica', "Demo klijentu nije dozvoljeno da menja podatke.");
	}
	else {
	$pin = mysql_query('SELECT * FROM clients WHERE id=\''.$_SESSION["id"].'\'');
	$pinkod = mysql_fetch_array($pin);
	if($_POST['pin'] != $pinkod['pin'])
	{
		$smarty->assign('porukica', "PIN kod koji ste uneli nije tacan!");
    }