How to get facebook app online users

Question

I like to know if there is a way to count the users that are online at one time on an application.

They have the app installed and they are online.

I have a PHP facebook app using the FBML.

Thank you! Adrian

Answer 1

You have to take the extended permission of user_online_presence to get your desired result. You can take this extended permission like this

$loginUrl = $facebook->getLoginUrl(
       array(
        'canvas'    => 1,
        'fbconnect' => 0,
        'req_perms' => 'email,user_online_presence'
        )
);