Hour 16. Building a Simple Shopping Cart
Nearly all Web sites that sell merchandise over the Internet include that ubiquitous element—the shopping cart. Most shopping cart applications work by assigning the user a session identifier, and associating the user’s purchase choices with that identifier. The application keeps track of the user’s activities by carrying the identifier from page to page within the site. When the user is ready to “check out,” the application retrieves all the items to be purchased.
This hour demonstrates how to build a simple shopping cart by discussing the following topics:
How shopping cart applications work
How to build a catalog
How to build a shopping cart
How the checkout procedure for an online store works
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