[Solved] Facebook user ID. Which one?
What you see are the so-called global and app-scoped user_ids. If you’re using v1.0 of the Graph API, the user_ids will be global. If you use v2.0 they will be app-scoped, as in your first example. It’s all in the docs: https://developers.facebook.com/docs/apps/upgrading#upgrading_v2_0_user_ids 1 solved Facebook user ID. Which one?