Facebook App Users List

Question

I am fairly new to the Facebook APIs. I want to get a list of my friends who have also installed my app. (The idea being you can then start a game with them).

This gives

Answer 1

This is I believe the FQL query

$facebook->api(array('method' => 'fql.query', 'query' => "SELECT uid FROM user WHERE is_app_user = '1' AND uid IN (SELECT uid2 FROM friend WHERE uid1 = '" . $user_id . "');"));

(I use java and JS APIs so the syntax may not be exactly correct)

The documentation for the user and friend queries are here:

http://developers.facebook.com/docs/reference/fql/user/

http://developers.facebook.com/docs/reference/fql/friend/