CYandexOAuthInterface::getDeviceId

public function getDeviceId($state)
{
	$deviceId = '';
	if (!empty($state) && isset($_SESSION[$state]))
	{
		list(, $deviceId) = $_SESSION[$state];
		if ($deviceId)
		{
			$deviceId = mb_substr($deviceId, 0, self::MAX_DEVICE_ID_LENGTH);
		}
	}

	return $deviceId;
}