pocketmine\event\entity\EntityTeleportEvent::getTo PHP Method

    public function getTo()
    {
        return $this->to;
    }

 public function onPlayerTeleport(EntityTeleportEvent $event)
 {
     $player = $event->getEntity();
     if ($player instanceof Player) {
         if (!is_null($event->getTo())) {
             if (!is_null($event->getTo()->getLevel())) {
                 $this->plugin->petOwnerRegister($player, $event->getTo()->getLevel()->getName());
             }
         }
     }
 }