Msieprawski\ResourceTable\Generators\Collection::_validSort PHP Method

    private function _validSort(array $params)
    {
        if (!isset($params['order_by']) || !isset($params['order_dir'])) {
            return false;
        }
        if (!in_array(strtoupper($params['order_dir']), ['ASC', 'DESC'])) {
            return false;
        }
        foreach ($this->_columns as $data) {
            $column = new Column($data);
            if ($column->index() == $params['order_by']) {
                return true;
            }
        }
        return false;
    }