In this article we've seen how to use PHP, MySQL, and a pinch of JavaScript to build the skeleton of a shopping cart. Of course, you couldn’t use just the code we've looked at to build a cart, but it's a great starting point onto which you can add payment processing, collection of delivery details, etc.
If you choose not to use this code, then I hope it at least gives you a better understanding of how a shopping cart script works, and how you can go about designing something that you might be able to use to add functionality to either yours or your clients web site(s).
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