I currently have the core file
Session.php modified a little to keep track of login/logout information and
create_new_session() for login,
destroy() for logout.
I realize that this can be better achieved with an extension using hooks -
member_member_login_single after login,
member_member_logout after logout.
The issue, though, is with the logout hook the system doesn't pass along any data (documentation), so there's no way for us to know the
member_id of the user who just logged out.
Is there a way to accomplish this at all aside from modifying core files? I already have a hacky solution (editing core files), so I'm looking for the "right" way to do this.