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

    public function getChunk($chunkX, $chunkZ, $create = false)
    {
        $index = Level::chunkHash($chunkX, $chunkZ);
        if (isset($this->chunks[$index])) {
            return $this->chunks[$index];
        } else {
            $this->loadChunk($chunkX, $chunkZ, $create);
            return isset($this->chunks[$index]) ? $this->chunks[$index] : null;
        }
    }