SELECT s.*, u.`pass`
                                  FROM `pmf_session` AS s
                                       LEFT JOIN `pmf_user` AS u ON s.`user_id` = u.`id`
                                  WHERE MD5(CONCAT(s.`sess`, s.`browser`)) = '81a21c74407b4d0adc1a725dd3c13dcc' LIMIT 0,1

SELECT `sess`
                                  FROM `pmf_session`
                                  WHERE `user_id` = 0
	                                AND MD5(CONCAT(`ip`, `browser`)) = 'ef5a1bf6b10b805949414364d9e0e996' LIMIT 0,1

SELECT u.`id`, u.`name`, g.`wio_color`, s.`last_action`, s.`site`
                       FROM `pmf_session` AS s
                            LEFT JOIN `pmf_user` AS u ON s.`user_id` = u.`id`
                            LEFT JOIN `pmf_group` AS g ON g.`id` = u.`group_id`
                       GROUP BY s.`sess`
                       ORDER BY s.`last_action`

SELECT *
                               FROM `pmf_search`
                               ORDER BY `search_date` DESC
                               LIMIT 0, 5

REPLACE INTO `pmf_session` (`sess`,`ip`,`user_id`,`last_action`,`site`,`browser`)
                  VALUES ('842f36f7680c847fbee3c0b66553af1c','34.230.84.215',0,1555849735,'search.php?','CCBot/2.0 (https://commoncrawl.org/faq/)')

DELETE FROM `pmf_search`
                  WHERE `search_date` < 1555417735