/** * @param bool $internal * * @return string */ public function toBinary($internal = false) { return chr($this->reliability << 5 | ($this->hasSplit ? 0b10000 : 0)) . ($internal ? Binary::writeInt(strlen($this->buffer)) . Binary::writeInt($this->identifierACK) : Binary::writeShort(strlen($this->buffer) << 3)) . ($this->reliability > 0 ? (($this->reliability >= 2 and $this->reliability !== 5) ? Binary::writeLTriad($this->messageIndex) : "") . (($this->reliability <= 4 and $this->reliability !== 2) ? Binary::writeLTriad($this->orderIndex) . chr($this->orderChannel) : "") : "") . ($this->hasSplit ? Binary::writeInt($this->splitCount) . Binary::writeShort($this->splitID) . Binary::writeInt($this->splitIndex) : "") . $this->buffer; }