// CODE BREAKING RESOLVED. load. press CTRL + F5  loaded with FBRLH_state. // this is a consequence of FBRedirectLoginHelper :.  private  = 'FBRLH_'; # string Prefix to use for session variables // this means that FBRLH_State is generated when  is initialised. no  variable is assigned # click 'The Real Login'  makes a successful call through  ...->getSessionFromRedirect(). Because it is not null, it means that 'return new FacebookSession(['access_token']);' has been assigned to . However the control logic is still stuck in the ELSE of ~  CONTROL FLOW ~ which means that ['fb_token'] is not set. # navigate to http://localhost/api_tinkering/another.php _SESSION indicates that in first condition of ~  CONTROL FLOW ~ printed  shows fb_token HOWEVER!!! - FacebookSession, is stuck in the else