pocketmine\level\format\leveldb\LevelDB::close PHP Method

    public function close()
    {
        $this->unloadChunks();
        $this->db->close();
        $this->level = null;
    }

 public function close()
 {
     $this->unloadChunks();
     $this->db->close();
     $this->level = null;
 }