Log last accestime

I want to log each user's latest accestime ..but the script below only logs the latest user.
If the user doesn't exist it must be added to the list.

<?
function traceuser($REMOTE_IP,$userid){
if ($REMOTE_IP == "192.168.0.2"){
//Niks doen
}else{
$lasthitfile="hosts.log"; //Log file
$count_it = 1;
$now = time();
$hits="";
if(file_exists($lasthitfile))
{
$cf = fopen($lasthitfile, "r");
while (!feof($cf))
{
$line=fgets($cf, 4096);
list($where, $who, $when) = explode(":", $line);
if ($when > $now-($trigger*60))
{
if (($where==$userid) && ($who==$REMOTE_IP))
$count_it=1;
else $hits.="$userid:$who:$when\n";
}
}
fclose($cf);
}
$hits.="$userid:$REMOTE_IP:$now\n";
$cf = fopen($lasthitfile, "w");
fwrite($cf, $hits);
fclose($cf);

}
}
?>

Hey,
It all has to do with the way that you're opening the file for writing when you put the data back. You need to append to the file, like this:

$cf = fopen($lasthitfile, "a+");
fwrite($cf, $hits);
fclose($cf);

Maybe i i tod it wrong.
But ....
What it supposed to do is:
When a user logs in ..
look in the file if the user exist ..
user exist ? -> change last acces time
user doesnt't exist ? -> appent to file.

but now it logs alll user activity

I'm not sure if this helps or anything...
but I log the last access time for each user by simply having a field in the DB called "LastLogin".
Each time the user logs in the field is set to "now()".

I am mearly a beginner tho!! So sorry if it's not what you're looking for!!

Well,
normally that should do the trick ..but the file needs to be send
with an email trhu a cron job.
I haven't compiledthe php excecutable so ...i cannot retreive..

aaah I see!
No Probs!!