Pinocchio

Hi guys, Can someone help me with this if statement please. I'm trying to create two delivery amounts, so I'm trying to use an if statement instead of $delivery = "3.50";. All items should have a rate of £3.50 except item id 22 which should be 0.50p. When I use this if statement below it just takes the price of £3.50 and ignores the else the part of the formula.. Thanks in advance. $delivery = "3.50"; ---------- if ($item_id <> 22){ $delivery = "3.50"; } else { $delivery = "0.50"; }