HostRestriction::isValidHost

public function isValidHost($host)
{
	if (is_string($host) && $host !== '')
	{
		$count = 0;
		preg_replace($this->getValidationRegExp(), '', $host, 1, $count);
		//var_dump($count);
		if ($count)
		{
			return true;
		}
	}
	return false;
}