public function getCallback()
        {
            $token = $this->getAccessToken();
            if ( ! empty($token))
            {
                $this->putSessionToken($token);

                return true;
            }
            return false;
        }
public function getCallback()
        {
            $token = $this->getAccessToken();
            if ( ! empty($token))
            {
                $this->putSessionToken($token);

                return true;
            }
            return false;
        }
public function getCallback ( ) { $ token = $ this -> getAccessToken ( ) ; if ( ! empty ( $ token ) ) { $ this -> putSessionToken ( $ token ) ; return true ; } return false ; }
Get callback from facebook.

@return boolean
Get callback from facebook .