[Resolved] How would i define a variable from this?

[Sayian]

How can i assign the result for the return of user.username to a variable in this function?

function fetch_avatar_url($userid)
{
	global $DB_site, $session, $vboptions;

if ($avatarinfo = $DB_site->query_first("
	SELECT user.avatarid, user.username, user.avatarrevision, avatarpath, NOT ISNULL(avatardata) AS hascustom, customavatar.dateline
	FROM " . TABLE_PREFIX . "user AS user
	LEFT JOIN " . TABLE_PREFIX . "avatar AS avatar ON avatar.avatarid = user.avatarid
	LEFT JOIN " . TABLE_PREFIX . "customavatar AS customavatar ON customavatar.userid = user.userid
	WHERE user.userid = $userid"))

{
	if (!empty($avatarinfo['avatarpath']))
	{
		return $avatarinfo['avatarpath'];
	}
	else if ($avatarinfo['hascustom'])
	{
		if ($vboptions['usefileavatar'])
		{
			return "$vboptions[avatarurl]/avatar{$userid}_{$avatarinfo[avatarrevision]}.gif";
		}
		else
		{
			return "image.php?u=$userid&dateline=$avatarinfo[dateline]";
		}
	}
	else
	{
		return '';
	}
}
}

Im used to seeing mysql query's and i know this use's a mysql database im just kind of confused right now.