my $select = "SELECT SQL_CALC_FOUND_ROWS
            defaultusers.id,
            defaultusers.birthday,
            defaultusers.name,
            defaultusers.count_img,
            defaultusers.wohnort,
            IF(sessions.userid IS NOT NULL, '1','0')
        FROM defaultusers LEFT JOIN sessions ON 
            defaultusers.id = sessions.userid
        WHERE
            defaultusers.status = 'N'
        ORDER BY
            IF(defaultusers.count_img >=1, 1, defaultusers.count_img) DESC,
            defaultusers.lastlogin DESC
        LIMIT $db_show, 8";