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

CHECK TABLE sessions FAST QUICK

SELECT * FROM sessions WHERE sid='sgsvd92f3311lg086cg17a18b4'

INSERT INTO sessions SET sid='sgsvd92f3311lg086cg17a18b4', dt_in=NOW(), ip='35.175.112.61', host='', session_lng='rus', expiredt=(unix_timestamp()+10800)

SELECT * FROM sessions WHERE sid='sgsvd92f3311lg086cg17a18b4'

update sessions set script_name='/printer.php' WHERE sid='sgsvd92f3311lg086cg17a18b4'



select cat_id from www_tree where main_page=1