DBServer::terminate PHP Method

    public function terminate($reason, $forcefully = null, $user = null)
    {
        if (in_array($this->status, array(SERVER_STATUS::PENDING_TERMINATE, SERVER_STATUS::TERMINATED))) {
            return;
        }
        $forcefully = $forcefully === null ? true : (bool) $forcefully;
        //Ensures handling identifier of the user instead of the object
        if ($user !== null && !$user instanceof \Scalr_Account_User) {
            try {
                $user = Scalr_Account_User::init()->loadById(intval($user));
            } catch (\Exception $e) {
            }
        }
        $fnGetReason = function ($reasonId) {
            $args = func_get_args();
            $args[0] = DBServer::getTerminateReason($reasonId);
            return [call_user_func_array('sprintf', $args), $reasonId];
        };
        list($reason, $reasonId) = is_array($reason) ? call_user_func_array($fnGetReason, $reason) : $fnGetReason($reason);
        //Set who does terminate the server
        if ($user instanceof \Scalr_Account_User) {
            $this->SetProperties(array(\SERVER_PROPERTIES::TERMINATED_BY_ID => $user->id, \SERVER_PROPERTIES::TERMINATED_BY_EMAIL => $user->getEmail()));
        }
        $this->SetProperties([SERVER_PROPERTIES::REBOOTING => 0]);
        $this->update(['status' => SERVER_STATUS::PENDING_TERMINATE, 'dateShutdownScheduled' => date("Y-m-d H:i:s", $forcefully ? time() : strtotime(Scalr::config('scalr.system.server_terminate_timeout')))]);
        $this->getServerHistory()->markAsTerminated($reason, $reasonId);
        if (isset($this->farmId)) {
            Scalr::FireEvent($this->farmId, new BeforeHostTerminateEvent($this, false));
            // If instance was terminated outside scalr, we need manually fire HostDown
            if ($reasonId == self::TERMINATE_REASON_CRASHED) {
                Scalr::FireEvent($this->farmId, new HostDownEvent($this, false));
            }
        }
    }