DELETE from sessions WHERE expiredt<(UNIX_TIMESTAMP()-10800)
CHECK TABLE sessions FAST QUICK
SELECT * FROM sessions WHERE sid='p5vicsork7vrckfm5vs8b0mbpj'
INSERT INTO sessions SET sid='p5vicsork7vrckfm5vs8b0mbpj', dt_in=NOW(), ip='18.234.55.154', host='', session_lng='rus', expiredt=(unix_timestamp()+10800)
SELECT * FROM sessions WHERE sid='p5vicsork7vrckfm5vs8b0mbpj'
update sessions set script_name='/printer.php' WHERE sid='p5vicsork7vrckfm5vs8b0mbpj'
select cat_id from www_tree where main_page=1