function get_admins_for_seminar($seminar_id) { $all_institutes = StudipSeminarHelper::get_all_institutes($seminar_id); $admins = array(); foreach ($all_institutes as $institute) { $admins = array_merge($admins, StudipInstituteHelper::get_admins_upward_recursive($institute)); } $admins = array_merge($admins, Studip_User::find_by_status('root')); return $admins; }