UPDATE `logins` SET `logoutTime` = NOW() WHERE `userId` = '13' AND `date` = '2018-07-17'

UPDATE `logins` SET `logoutTime` = NOW() WHERE `userId` = '79' AND `date` = '2018-07-17'

SELECT count(*) FROM logins WHERE `userId` ='$userId' AND `date` = '2018-07-17'";