本文实例讲述了PHP记录页面停留时间的方法。分享给大家供大家参考，具体如下：
首先在要监控的页面添加JS如下
<script>var dt1 = new Date();window.onbeforeunload = function(){ var dt2 = new Date(); var ms = dt2.getTime() - dt1.getTime(); var img = new Image(); img.src = 'log.php?stay_ms=' + ms;}</script> log.php 代码如下
<?php$refer = '';if (isset($_SERVER['HTTP_REFERER'])){ $refer = $_SERVER['HTTP_REFERER'];}$user_agent = '';if (isset($_SERVER['HTTP_USER_AGENT'])){ $user_agent = $_SERVER['HTTP_USER_AGENT'];}$ip = $_SERVER['REMOTE_ADDR'];if (isset($_GET['stay_ms'])){ $log = '[' . date("Y-m-d H:i:s") . '] ' . $ip . ' ' . $refer . ' @ ' . number_format($_GET['stay_ms']) . "ms/r/n"; file_put_contents("log/log_" . date("Y-m-d") . ".txt", $log, FILE_APPEND);}if ($_SERVER['QUERY_STRING'] == '' || isset($_GET['day'])){ $day = isset($_GET['day']) ? $_GET['day'] : date("Y-m-d"); $file = "log/log_" .$day . ".txt"; if (file_exists($file)) { $log = file_get_contents($file); echo nl2br($log); }} 
