Check::convertToBinaryFormat

protected function convertToBinaryFormat($string, $size) : string
{
	$result = '';

	for ($i = 0; $i < $size; $i++)
	{
		$hex = dechex(($string >> (8 * $i)) & 0xFF);
		if (mb_strlen($hex) === 1)
		{
			$hex = '0'.$hex;
		}

		$result = ToUpper($hex).$result;
	}

	return $result;
}