DELETE from sessions WHERE expiredt<(UNIX_TIMESTAMP()-10800)
CHECK TABLE sessions FAST QUICK
SELECT * FROM sessions WHERE sid='hkh6ga7bcr962tce0r0shpsbnh'
INSERT INTO sessions SET sid='hkh6ga7bcr962tce0r0shpsbnh', dt_in=NOW(), ip='3.235.229.251', host='', session_lng='rus', expiredt=(unix_timestamp()+10800)
SELECT * FROM sessions WHERE sid='hkh6ga7bcr962tce0r0shpsbnh'
update sessions set script_name='/printer.php' WHERE sid='hkh6ga7bcr962tce0r0shpsbnh'
select cat_id from www_tree where main_page=1