phpBB2 style Group Legend display

Requested by princexxx in this topic, this snippet will modify the group legend on the index too look like it did back on phpBB2.

#
#-----[ OPEN ]------------------------------------------
#
index.php
#
#-----[ FIND ]------------------------------------------
#

    $legend = array();
    while ($row = $db->sql_fetchrow($result))
    {
        $colour_text = ($row['group_colour']) ? ' style="color:#' . $row['group_colour'] . '"' : '';
        $group_name = ($row['group_type'] == GROUP_SPECIAL) ? $user->lang['G_' . $row['group_name']] : $row['group_name'];

        if ($row['group_name'] == 'BOTS' || ($user->data['user_id'] != ANONYMOUS && !$auth->acl_get('u_viewprofile')))
        {
            $legend[] = '<span' . $colour_text . '>' . $group_name . '</span>';
        }
        else
        {
            $legend[] = '<a' . $colour_text . ' href="' . append_sid("{$phpbb_root_path}memberlist.$phpEx", 'mode=group&g=' . $row['group_id']) . '">' . $group_name . '</a>';
        }
    }
    $db->sql_freeresult($result);

    $legend = implode(', ', $legend);  

#
#-----[ REPLACE WITH ]------------------------------------------
#

    $legend = array();
    while ($row = $db->sql_fetchrow($result))
    {
        $colour_text = ($row['group_colour']) ? ' style="color:#' . $row['group_colour'] . '"' : '';
        $group_name = ($row['group_type'] == GROUP_SPECIAL) ? $user->lang['G_' . $row['group_name']] : $row['group_name'];

        if ($row['group_name'] == 'BOTS' || ($user->data['user_id'] != ANONYMOUS && !$auth->acl_get('u_viewprofile')))
        {
            $legend[] = '[ <span' . $colour_text . '>' . $group_name . '</span> ]';
        }
        else
        {
            $legend[] = '[ <a' . $colour_text . ' href="' . append_sid("{$phpbb_root_path}memberlist.$phpEx", 'mode=group&g=' . $row['group_id']) . '">' . $group_name . '</a> ]';
        }
    }
    $db->sql_freeresult($result);

    $legend = implode(' ', $legend);  

You can easily play about with the separators. The brackets were added to $legend[] and the spacing is done here - $legend = implode(' ', $legend); (that's where I removed the comma from.)