This is the last of the major samples we write in this book. We have shown the major infrastructure required to implement an ecommerce application, including the management of products, users, and shopping carts. With a few missing pieces, we could have a complete working online store in short order.
With this last sample, we have completed our journey through web application writing using PHP5. We have covered a mountain of material, and it is unrealistic to expect anybody to absorb all of it quickly. Therefore, we hope that you will take the opportunity to play with the samples and code snippets provided, write some samples of your own, and even take on some projects you have had in the back of your mind for some time as a way to learn more about the platform.