“In recent weeks I’ve been working on an e-commerce project.
Among the project goals included building an Ajax-driven shopping
cart which is intended to further enhance the user’s shopping
experience. In the latest installment of this ongoing PHP series,
I’ll show you how to build a shopping cart using PHP, session
handling, and the Prototype JavaScript library (introduced in an
earlier installment). The cart allows users to add and delete
products from the cart, as well as change cart quantities. And of
course, the interaction is seemingly instantaneous, allowing for
the user to continue shopping without waiting for the page to
reload…”