I am doing some integration with Facebook Open Graph using their oAuth flow and having issues with parsing query string parameters they return.

On my callback URL, they pass back an "access_token" parameter with a hash (#). so the callback would be:

http://mydomain.com/callback.php#access_token=foobar123

where foobar123 is my access token I'm trying to parse out.

However, no matter what I do, my PHP code cannot see if and I've done every debug trick I know (even using phpinfo() to go through everything). The URL is stated only as http://mydomain.com/callback.php. It's as if the rest of the URL isn't really there!

This code returns nothing:

$token = $_REQUEST['access_token'];

Any help would be greatly appreciated... I'm obviously missing something simple.