Update value in session array php

Question

I have question about the SESSION array.

I just add item and qty in different session. I use code like this :

$_SESSION[\'idproduct\'] = $id.\",\";         


        

Answer 1

The best way to achieve it is to store quantity as a value with product ID as a key, so if you have:

idproduct  = 1,4,6,
qtyproduct = 3,4,5,

Store it as:

$_SESSION['qtyproduct'] = array(
  1 => 3,
  4 => 4,
  6 => 5,
);

Right now if you have a product id:

$id = 4;

You can access quantity with:

$quantity = $_SESSION['qtyproduct'][$id];

and modify it with:

$_SESSION['qtyproduct'][$id] = 7;