query("SELECT r1.id FROM $db_config[def]resume_expect AS r1 JOIN (SELECT ROUND(RAND() * (SELECT MAX(id) FROM $db_config[def]resume_expect)) AS id) AS r2 WHERE r1.id >= r2.id AND status='1' AND `r_status`='1' AND `defaults`='1' AND `ctime`>'".$stime."' ORDER BY r1.id ASC LIMIT 30"); while($rs = $db->fetch_array($query)) { $LastTime = strtotime('-'.rand(1,59).' minutes', time()); $db->update_all("resume_expect","`lastupdate`='".$LastTime."'","`id`='".$rs['id']."'"); } ?>