public function getPostGet($index = null, $filter = null, $flags = null)
	{
		// Use $_POST directly here, since filter_has_var only
		// checks the initial POST data, not anything that might
		// have been added since.
		return isset($_POST[$index]) ? $this->getPost($index, $filter, $flags) : $this->getGet($index, $filter, $flags);
	}