Multidimensional session data

[eluser]spheroid[/eluser]
How is it possible to do the following refactored for CI? Having difficulty compared to the documentation:

1. Increase the value by 1

Code:

$_SESSION['cart_product_qty'][$i]++;

2. Compare a multidimensional session array key

Code:

if ($_SESSION['cart_product_id'][$i] == $product_id) ...

3. Set a session variable using an array key

Code:

$_SESSION['cart_product_qty'][] = 1;

4. Display a multidimensional session variable

Code:

echo $_SESSION['cart_product_qty'][$i];

I'm not sure if it's possible to use these type of multidimensional session variables??

[eluser]nmweb[/eluser]
I don't think it's possible right now in the way you described. It is however possible to serialize whichever arrays you have into a variable, unserialize them when you need them, and again serialize them and put them back in the session.

http://nl3.php.net/serialize