From Facebook Developers Wiki

How is this a desktop app if its written in PHP? Sorry for the silly question, but it doesn't make much sense. There is not enough background given in the page. --506306287 08:42, 11 April 2008 (PDT)

Fatal error: Call to undefined method FacebookRestClient::auth_createToken() in /home/.../facebook/index.php on line 25, using Apache/2.2.4 (Ubuntu) PHP/5.2.3-1ubuntu6