lib/SteamCondenser/Community/SteamGroup.php
protected function internalFetch() {
        if(empty($this->memberCount) || sizeof($this->members) == $this->memberCount) {
            $page = 0;
        } else {
            $page = 1;
        }

        do {
            $totalPages = $this->fetchPage(++$page);
        } while($page < $totalPages);

        $this->fetchTime = time();
    }
protected function internalFetch() {
        if(empty($this->memberCount) || sizeof($this->members) == $this->memberCount) {
            $page = 0;
        } else {
            $page = 1;
        }

        do {
            $totalPages = $this->fetchPage(++$page);
        } while($page < $totalPages);

        $this->fetchTime = time();
    }
Loads information about and members of this group

This includes the ID, name, headline, summary and avatar and custom URL.

This might take several HTTP requests as the Steam Community splits this
data over several XML documents if the group has lots of members.