Working through items in a session shopping cart [closed]

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I am building a website with a basic shopping cart function. The following line of code lists each of the potential 6 items in the list and I have a function called listCart() which gets a total number of items (again maximum 6) in the cart.

<?php (print_r($_SESSION['cart']))?>

I want to be able to iterate through each element in the cart as they are ID's that refer to a database so for example I want:

for (each element in the cart){ get the image associated with the id get the name associated with the id add a delete from cart for each id }

Could someone tell me a way of being able to work with each cart element in turn. I'm OK with the get image/get name/delete from cart aspects but have no idea how to loop through a session variable in php.

Thank you

Answer 1

Without any special checks, to iterate through the cart items the loop would go like:

foreach($_SESSION['cart'] as $cartId) {
        // do something with the $cartId and so on
    }

* UPDATE *

If however is a string (as you stated in the comment) you need to explode it first to an array like that:

// if it is like "4,4,4,4,4,4" and not an array
$array = explode(',', $_SESSION['cart']);
foreach($array as $cartId) {
    // do something with the $cartId and so on
}