$members_in_range=$GLOBALS['FORUM_DB']->query('SELECT '.$f_name.',COUNT('.$f_name.') AS cnt FROM '.$GLOBALS['FORUM_DB']->get_table_prefix().'f_members m LEFT JOIN '.$GLOBALS['FORUM_DB']->get_table_prefix().'f_member_custom_fields f ON m.id=f.mf_member_id WHERE '.$a.' AND '.$b.' GROUP BY '.$f_name.' ORDER BY cnt',300/*reasonable limit*/);
$members_in_range=$GLOBALS['FORUM_DB']->query('SELECT '.$f_name.',COUNT('.$f_name.') AS cnt FROM '.$GLOBALS['FORUM_DB']->get_table_prefix().'f_members m LEFT JOIN '.$GLOBALS['FORUM_DB']->get_table_prefix().'f_member_custom_fields f ON m.id=f.mf_member_id WHERE '.$a.' AND '.$b.' GROUP BY '.$f_name.' ORDER BY cnt DESC',300/*reasonable limit*/);