Thruway\Subscription\Subscription::createSubscriptionFromSubscribeMessage PHP Method

    public static function createSubscriptionFromSubscribeMessage(Session $session, SubscribeMessage $msg)
    {
        $options = $msg->getOptions();
        $subscription = new Subscription($msg->getTopicName(), $session, $options);
        if (isset($options->disclose_publisher) && $options->disclose_publisher === true) {
            $subscription->setDisclosePublisher(true);
        }
        return $subscription;
    }

 /**
  * @param Session $session
  * @param SubscribeMessage $msg
  * @return Subscription
  */
 public function processSubscribe(Session $session, SubscribeMessage $msg)
 {
     $subscription = Subscription::createSubscriptionFromSubscribeMessage($session, $msg);
     $this->addSubscription($subscription);
     $subscription->setSubscriptionGroup($this);
     Logger::debug($this, "Added subscription to \"" . $this->getMatchType() . "\":\"" . $this->getUri() . "\"");
     $session->sendMessage(new SubscribedMessage($msg->getRequestId(), $subscription->getId()));
     return $subscription;
 }