This SDK consists of the engage.lib.php (the SDK) 
as well as the test console to try it out.

SDK:
Currently only has auth_info implemented.
 engage.lib.php

Example Token URL PHP:
A small example token URL script that uses the library.
 rpx-token-url.php

Test Console:
Just place the SDK folder in a php enabled location 
then load the console folder location in your browser.
 index.php
 index.inc.php
 style.css


Requirements:
 PHP version >= 5
  Required PHP addons:
 	 cURL with SSL
 	 JSON
 	 simpleXML