Uri::convertToPunycode

public function convertToPunycode()
{
	$host = CBXPunycode::ToASCII($this->getHost(), $encodingErrors);

	if (!empty($encodingErrors))
	{
		return new BitrixMainError(implode("n", $encodingErrors));
	}

	$this->setHost($host);

	return $host;
}