'; echo ''; $courseid = required_param('courseid', PARAM_INT); $groupid = required_param('groupid', PARAM_INT); $users = required_param('users', PARAM_SEQUENCE); require_login($courseid); if (confirm_sesskey() and isteacheredit($courseid)) { $userids = explode(',', $users); if ($userids != false) { foreach($userids as $userid) { $useradded = groups_add_member($groupid, $userid); if (!$useradded) { echo 'Failed to add user $userid to group'; } } } } echo ''; ?>