Store an User ID

[prashi123]

The follwing code stores only product id and its quantity through URL parameters. I need even the user id must be stored........please help with this.

thanks,

prashi

[Guest]

i would store the user id in a session variable:

<?php
session_start();
$_SESSION['user_id']='user_id';
?>

[prashi123]

But i need the user_id to get stored in a table where product_id and product quantity gets stored. Any solutions .........