PHP Sessions shopping cart: update product if it's already id the session

Question

I have struggled to find a solution to a simple shopping cart with $_SESSION. I kept it very simple and this is my code right now

if ( Input::isPos         


        

Answer 1

A better way of doing it would be to create another array called sizes and store sizes there. So your code would look something like

if (in_array($size, $_SESSION['cart'][$id]['sizes'])) {
    //The size has been added to the cart
} else {
    //The size isn't in the cart so add it
    $_SESSION['cart'][$id]['sizes'][] = $size;
}

Also rather than store the quantity like

$_SESSION['cart'][$id][1]+=$qta;

Why don't you have more meaningful keys so you can understand the contents of the array better. For example

$_SESSION['cart'][$id]['qty']+=$qta;