ORIGINAL VERSION- RELEASED ON JULY 2011
VERSION 1.0 - RELEASED ON AUGUST 2012
1.) Change the method from fsockopen to curl for better server compatibility.
2.) Clean up the code a bit and make it stable.

For more details read the Paypal PHP IPN tutorial here: http://www.devshed.com/c/a/PHP/Creating-a-Paypal-IPN-System-in-PHP-Part-Two/
Or you can find the rest of the tutorial series here: http://www.devshed.com/cp/bio/Codex%98M/

If you have some questions or want help integrating PayPal IPN to your site, drop me a email at codex_m@php-developer.org
