Professional CodeIgniter

Chapter 10: Launch

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< /table >

< /form >

< div id=’ajax_msg’ > < /div >

< /div >

As a visual reminder, Figure 10 - 1 shows what the shoppingcart view might look like when loaded in a
browser.

Figure 10 - 1

What you want is for the user to click the Checkout button and transfer all the information in the PHP
session array called cart to a checkout process. For simplicity ’ s sake, you ’ re going to integrate the cart
with Google Checkout, which is Claudia ’ s preferred vendor.

There are many vendors out there that you can integrate a shopping cart with. The two best - known ones

are PayPal and Google Checkout, but others, like PayPro Flow (from VeriSign) and Authorize.Net, also

have significant followings. All of the systems work in fairly similar ways: You prepare the information

to their specifications, and then you pass along that information in a way they can easily parse. Most of

the lessons learned in this chapter will apply generally to most of these systems.