register_globals = Off

Hi there In my shop a had this code to add a product to the shoppingcart: session_start(); session_register("cart"); if($action == "addtocart") { $cart[] = "$id,$amount"; } To view the cart i had to explode the session_variable $cart and get more data from the database. session_start(); foreach($cart as $value) { $value = list($id, $amount) = explode(",", $value); echo "$id : $amount\n"; } This workt perfect bevor i hat to reinstall my Computer. Now i have php 4.2.2 and every time i want to add a product to the cart it overwrites my session_variable. So now i have only the newest variable in the session_variable. I've tried it with $_REQUEST, $_SESSION, import_request_variables() but none of them gives me my array back. Can you help me ?