Posted on December 9, 2009August 17, 2015 by Calvin FreitasPHP 5 Library for Posterous API Update: Posterous is dead. The code remains on Github, but it won’t do you any good anymore. I have written a PHP 5 library for the Posterous API. It uses the curl extension to query the Posterous API, retrieves the XML, and returns the XML as a SimpleXMLElement. Read more information about my Posterous API library for PHP 5 or clone the code on GitHub.