/** * Write a four byte 32-bit signed int. * * @param $number * @param int $endianess Write number with specified endianess, defaults to the file endianess. */ public function writeInt32($number, $endianess = -1) { if (isset($this->handle) && $this->isWritable) { $this->writeData(DataHandler::packInt32($number, $this->getTargetEndianess($endianess))); } }