Purpose:

The purpose of this code is to help you to understand how to process the Instant Payment Notification
variables for Subscription Button and integrate it in your PHP site.

How to Use: to

Put this code into the page which you have specified as Alert URL.
The variables being read from the _POST object in the below code are pre-defined IPN variables and the
the conditional blocks provide you the logical placeholders to process the IPN variables. It is your responsibility
to write appropriate code as per your requirements.

THIS CODE AND INFORMATION ARE PROVIDED "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT
LIMITED TO THE IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE.