Buildinng "Building a Persistent Shopping Cart with PHP and MySQL "Tutorial

Hi,

A php green horn here. Wonder how if anyone know how to write the checkout script for the dreamweaver mx tutorial for developing a shopping cart with use of cookies. I need to write the checkout script. Need some head start.

Off hand,

The algorithm should be something as follows:

1. Check if cookie_ID is valid and whether user is logon or not
2. User not logon, redirect user to logon
3. Else, If valid, check cart content based on cookie_ID
4. Write Data into Order Table (Customer Name


some please help. Relatively new to this PHP thing. Thanks.