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php简单统计在线人数的方法 - 站长搜索
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php简单统计在线人数的方法

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2016-05-14 00:25:15 转载来源: 网络整理/侵权必删

本篇内容主要为大家提供的是php简单统计在线人数的方法。感兴趣的同学可以参考学习下,具体内容如下: 这里有新鲜出炉的PHP面向对象教程,程序狗速度看过来! PHP开源脚本语言PHP(外文名: Hypertext Preprocessor,中文名:“超文本预处理器”)是一种通用开源脚本语言

本篇内容主要为大家提供的是php简单统计在线人数方法。感兴趣的同学可以参考学习下,具体内容如下:

这里有新鲜出炉的PHP面向对象教程,程序狗速度看过来!

PHP开源脚本语言

PHP(外文名: Hypertext Preprocessor,中文名:“超文本预处理器”)是一种通用开源脚本语言。语法吸收了C语言、Java和Perl的特点,入门门槛较低,易于学习,使用广泛,主要适用于Web开发领域。PHP的文件后缀名为php。

这篇文章主要介绍了php简单统计在线人数的方法,涉及php针对文本文件的读写与相关数学运算技巧,需要的朋友可以参考下

本文实例讲述了php简单统计在线人数的方法。分享给大家供大家参考,具体如下:

<?php //首先你要有读写文件的权限 //本程序可以直接运行,第一次报错,以缶涂梢? $online_log = "count.dat"; //保存人数的文件, $timeout = 30;//30秒内没动作者,认为掉线 $entries = file($online_log); $temp = array(); for ($i=0;$i<count($entries);$i++) { $entry = explode(",",trim($entries[$i])); if (($entry[0] != getenv('REMOTE_ADDR')) && ($entry[1] > time())) { array_push($temp,$entry[0].",".$entry[1]."n"); //取出其他浏览者的信息,并去掉超时者,保存进$temp } } array_push($temp,getenv('REMOTE_ADDR').",".(time() + ($timeout))."n"); //更新浏览者的时间 $users_online = count($temp); //计算在线人数 $entries = implode("",$temp); //写入文件 $fp = fopen($online_log,"w"); flock($fp,LOCK_EX); //flock() 不能在NFS以及其他的一些网络文件系统中正常工作 fputs($fp,$entries); flock($fp,LOCK_UN); fclose($fp); echo "当前有".$users_online."人在线"; ?>

使用方法:

将以上代码保存为count.php,在要用到的位置:

include("count.php");

标签: php 简单 统计 在线 人数 方法


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