This is the start of the actual creation of the PayPal IPN system using PHP. If you are looking for the entire script, you can download it at the end of this tutorial series. It is recommended that you read and understand the concept behind those scripts before testing the script on your own server. As noted in the title, this is the second part of a series.

Read the full article here: Creating a Paypal IPN System in PHP - Part Two

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