PHP Method for recording the page stay time, php page stay time

PHP Method for recording the page stay time, php page stay time

This example describes how to record the page stay time in PHP. We will share this with you for your reference. The details are as follows:

First, add the following JS on the page to be monitored:

<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>

The log. php code is as follows:

<?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);  }}