php - Find friends active (logged in) on Facebook app right now -

php - Find friends active (logged in) on Facebook app right now -

i know /me/friends give list of friends utilize particular fb app

this want do:

if a, b, c 3 facebook friends using fb app, 3 logged app currently, 3 visible each other

if logged out of fb app b , c visible each other

basically want show list of friends (real-time) using facebook app...

please allow me know if possible , how

thanks in advance

as others have said, log in own database when user logs application. store facebook id , timestamp of login , can update timestamp time user completes action or run script. way timestamp in database remains date.

you can compare user's friend's timestamps. wouldn't real time (though close), show users online if have been active within window of time (like 30 seconds, 1 minute, 5 minutes, etc).

php facebook facebook-graph-api facebook-fql facebook-php-sdk