Вот нашол еще 1 LOG REFFER


<?php


// file where referrals are stored, change if you wish
$file = "refers.txt";

// if set to 1 IPs will be logged and associated with the URL they were referred by
$log_ip = 0;

//////////////////// NO NEED TO EDIT BELOW ////////////////////

$referer = (!isset($_SERVER['HTTP_REFERER']) || $_SERVER['HTTP_REFERER'] == '') ? 'an unknown url/direct access (typing in URL)' : $_SERVER['HTTP_REFERER'];
$ip = ($log_ip == 1) ? $_SERVER['REMOTE_ADDR'] : false;
$time = date('d F Y');
$user_text = ($log_ip == 1) ? "On {$time} {$ip}" : "On {$time} a user";
$refer_text = "{$user_text} was referred by {$referer}";
$fp = fopen($file, 'a');
fwrite($fp, "{$refer_text}\n");
fclose($fp);

?>

Этот безопасный ? ..