public function select($table, $where = '', $fields = '*', $order = '', $limit = null, $offset = '')
    {
        $query = "SELECT $fields FROM $table "
                 .($where ? " WHERE $where " : '')
                 .($order ? " ORDER BY $order " : '')
                 .($limit ? " LIMIT $limit " : '')
                 .(($offset && $limit ? " OFFSET $offset " : ''));
                 
        $this->prepare($query);
    }