In 2002 Wolfgang Hamman reverse engineers the AMF format to create a working gateway.
Other developers (Justin Watkins, John Cowen) implemented a good part of the Remoting framework, and released 0.9b in September 2003.
In December 2004, Patrick Mineault releases version 1.0
In October 2007 Wade Arnold took the lead of the project to bring a production ready release of AMFPHP with support for the AMF3 protocol. 1.9 beta 2 is released in January 2008, but then development stalls as Wade Arnold is hired by Adobe to work on Zend AMF.
Ariel Sommeria-klein and Danny Kopping pick up the project in December 2009. Version 1.9 is released in February 2010.
In 2010 Silex Labs is founded, and officially takes control of the project. Ariel Sommeria-Klein takes team lead.
version 2.0, a near complete rewrite is released in September 2011.