DELETE from sessions WHERE expiredt<(UNIX_TIMESTAMP()-10800)

CHECK TABLE sessions FAST QUICK

SELECT * FROM sessions WHERE sid='t488dctuogbt6trjrgft5hfgp9'

INSERT INTO sessions SET sid='t488dctuogbt6trjrgft5hfgp9', dt_in=NOW(), ip='44.210.107.64', host='', session_lng='rus', expiredt=(unix_timestamp()+10800)

SELECT * FROM sessions WHERE sid='t488dctuogbt6trjrgft5hfgp9'

update sessions set script_name='/printer.php' WHERE sid='t488dctuogbt6trjrgft5hfgp9'



select cat_id from www_tree where main_page=1