这是一个记录用户踪迹的片段

时间：2007-02-17 来源：PHP爱好者

<?php
if($_GET[mode]) {
$mode = $_GET[mode];
$url = $_GET[url];
$ip = $_SERVER[REMOTE_ADDR];
$fp = fopen("msg.txt","a+");
fputs($fp,"$ip ".date("Y-m-d H:i:s")." $mode $urln");
fclose($fp);
exit;
}
?>
<body onunLoad="msg('off')" onLoad="msg('on')">
<span id="view" style="visibility:hidden"></span>
</body>
<script>
function msg(v) {
view.innerHTML = '<iframe src="msg.php?mode='+v+'&url='+location.href+'"></iframe>';
}
</script>