public static function getInstance($instance)
	{
		$db = \App::get('db');

		if (empty($db)) {
			return false;
		}

		$hzph = new self();

		if (is_numeric($instance) && $instance > 0)
		{
			$hzph->user_id = $instance;
		}
		else
		{
			$query = "SELECT id FROM `#__users` WHERE username=" .  $db->quote($instance) . ";";
			$db->setQuery($query);
			$result = $db->loadResult();
			if (is_numeric($result) && $result > 0)
			{
				$hzph->user_id = $result;
			}
		}

		if (empty($hzph->user_id))
		{
			return false;
		}

		return $hzph;
	}