I am trying to track the users that visit one page on a site. I am having a couple of problems. The time seems to be 5 hours off. I do not have any tables as of yet what I would like to do is only count an ip address as one in a 24 hour period, if more than one visit then update visit count.I have played around with the time using date() and localtime(). Here is what I have sofar. ini_set('display_errors',1); error_reporting(E_ALL & ~E_NOTICE); session_start(); $_SESSION['ip_address'] = $IP; $_SESSION['user_agent'] = $Browser; $_SESSION['host_name'] = $Host; $_SESSION['visit_time'] = $now; $now = localtime(); $now = $now[2] . ":" . $now[1] . ":" . $now[0]; $IP = getenv(REMOTE_ADDR); $Browser = $_SERVER['HTTP_USER_AGENT']; $Host = getHostByName($IP); I have not setup tables yet but I think I will use this: vid init(5) not null auto_incriment ip varchar(25) null agent varchar(100) null host varchar(100) null time varchar(10) nul visitcount int(100) null when a visitor loads the page I can run this mysql_query(SELECT ip, time FROM tablename where ip=$_SESSION['ip_address'] and time=$_SESSION['visit_time']) I would like to query if $_SESSION['ip_address'] has visited in less then 24 hours then kill session and close mysql connection. If last visit was more than 24 hours update time and add +1 to visitcount. If new visit add to table. Once all done how can I properly clean up the session. I have tried the following bur get an error unset($_SESSION); session_destroy(); I tried this with a link to another page and got this error: Warning: session_destroy(): Trying to destroy uninitialized session in /home/content/html/killtest.php on line 5 I assume I forgot something. Any help would be appreciated.