public function get_entries($start=0, $limit=10) {
        global $DB;

        if ($this->entries === null) {
            if ($sqlarray = $this->get_entry_fetch_sql(false, 'created DESC')) {
                $this->entries = $DB->get_records_sql($sqlarray['sql'], $sqlarray['params'], $start, $limit);
                if (!$start && count($this->entries) < $limit) {
                    $this->totalentries = count($this->entries);
                }
            } else {
                return false;
            }
        }

        return $this->entries;
    }