sending variables into an array

[Anon]

i'm trying to build a shopping cart.

i have a form that submits to $PHP_SELF

the idea is to send the product id from the form into an array that is registered as a session.

<form method=post action=$PHP_SELF>
<input type=hidden name=cart value=add>

<input type=text name=product value=1001>
<input type=submit>
</form>

that is the form .. here is the section of code that i want to add the product variable into the array called $cart_array.

if($cart == "add"){

if(is_array($cart_array)){
array_push($cart_array,"$product");
} else {
$cart_array=array("$product");
}

session_start();
session_register(cart_array);

it will put the first product in, but the array never builds past 1 item.

any ideas?

[mp96brbj]

You need to start the session before meddling with $cart_array. Otherwise, session_start() will load $cart_array from the session data and overwrite the array you just created.

BTW, I don't think you need to register $cart_array more than once. It would suffice to register it when you've created $cart_array the first time (in this case, in the else-statement of your code).