Finding the HTTP_REFERER work around ?

Anon

I am looking for a way to find a HTTP_REFERER work around using php and maybe cgi ? As many of you know HTTP_REFERER does not work all the time in php and some older browsers. My question is ther a way to use cgi to look up where the referer is comming from ?

I run a banner exchange and I have a problem with some people reloading the banner in their browser to many times. The problem is that I can't find the url they are using.. I like to know if it's a url or their local hard drive. Below is a clip from my script I am using.. it works only about 35% to 50% the rest of the entires it places is No Referral. I like to find more referral urls than having the database loaded with No referrals.. Is there anybody that can help me out ?

if ($HTTP_REFERER) {
$referral = "$HTTP_REFERER";
}

if (!$HTTP_REFERER) {
$referral = "No Referral";
}
$reportresult = MYSQL_QUERY("INSERT INTO bannercheat VALUES('$date','$user','$referral','$REMOTE_ADDR')");

Thanks in advance,
David Eaton

Anon

echo "<script language=javascript>\n"
echo "r = document.referrer;\n";
echo "document.write('<script language=javascript src=\"stats_save.php?referrer="+r+"\">');\n";
echo "<img src=banner.gif>\n"

ok so this will be outputted:

the file stats_save.php will get the variable $referrer, and simply enter it into the database or do whatever you want with it