php实现统计IP数及在线人数的示例代码

写在前面的话

很多人有这样的需求，就是统计网站访问ip以及在线的人数。今天我们就看一下具体实现方法。

开启依赖函数模块

实现这个功能，需要依赖putenv()函数。下面两种方式均可。

更改php.ini文件方法

找到php.ini文件，搜索putenv关键字，删除即可。

isable_functions = passthru,exec,system,putenv,chroot,chgrp,chown,shell_exec,popen,proc_open,pcntl_exec,ini_alter,ini_restore,dl,openlog,syslog,readlink,symlink,popepassthru,pcntl_alarm,pcntl_fork,pcntl_waitpid,pcntl_wait,pcntl_wifexited,pcntl_wifstopped,pcntl_wifsignaled,pcntl_wifcontinued,pcntl_wexitstatus,pcntl_wtermsig,pcntl_wstopsig,pcntl_signal,pcntl_signal_dispatch,pcntl_get_last_error,pcntl_strerror,pcntl_sigprocmask,pcntl_sigwaitinfo,pcntl_sigtimedwait,pcntl_exec,pcntl_getpriority,pcntl_setpriority,imap_open,apache_setenv

使用宝塔面板

点击左侧软件管理，找到php，然后设置->禁用函数。

删除putenv，然后重启php即可。

实现函数

在count.php同目录下创建文件：count,temp,online。新建文本文档count.txt，去掉扩展名即为count了；

linux系统中请设置文件属性为：777。

文件count.php代码，用到了php函数–explode、isset、empty及sprintf等:

<?php

$file = "count"; // 记数文件名称

$startno = "1000"; // 起始数值

$tempfile = "temp";

$t_now = time();

$t_array = getdate($t_now);

$day = $t_array['mday'];

$mon = $t_array['mon'];

$year = $t_array['year'];

if (file_exists("$file")) {

$count_info=file("$file");

$c_info = explode(",", $count_info[0]);

$total_c=$c_info[0];

$yesterday_c=$c_info[1];

$today_c=$c_info[2];

$lastday=$c_info[3];

} else {

$total_c="$startno";

$yesterday_c="0";

$today_c="0";

$lastday="0";

}

if ( !isset($http_cookie_vars["countcookie"]) || $http_cookie_vars["countcookie"] != $day) {

$your_c=1;

$lockfile=fopen("temp","a");

flock($lockfile,3);

putenv('tz=jst-9');

$t_array2 = getdate($t_now-24*3600);

$day2=$t_array2['mday'];

$mon2=$t_array2['mon'];

$year2=$t_array2['year'];

$today = "$year-$mon-$day";

$yesterday = "$year2-$mon2-$day2";

if ($today != $lastday) {

if ($yesterday != $lastday) $yesterday_c = "0";

else $yesterday_c = $today_c;

$today_c = 0;

$lastday = $today;

}

$total_c++;

$today_c++;

$total_c = sprintf("%06d", $total_c);

$today_c = sprintf("%06d", $today_c);

$yesterday_c = sprintf("%06d", $yesterday_c);

setcookie("countcookie","$day",$t_now+43200);

$fp=fopen("$file","w");

fputs($fp, "$total_c,$yesterday_c,$today_c,$lastday");

fclose($fp);

fclose($lockfile);

}

if ( empty( $your_c ) ) $your_c = 1;

setcookie("yourcount",$your_c+1,$t_now+43200);

$your_c = sprintf("%06d", $your_c);

//////////////////////////开始统计在线

$filename="online";

$onlinetime=600; //同一ip在线时间，单位：秒

$online_id=file($filename);

$total_online=count($online_id);

$ip=getenv("remote_addr");

$nowtime=time();

for($i=0;$i<$total_online;$i++){

$oldip=explode("||",$online_id[$i]);

$hasonlinetime=$nowtime-$oldip[0];

if($hasonlinetime<$onlinetime and $ip!=$oldip[1]) $nowonline[]=$online_id[$i];

}

$nowonline[]=$nowtime."||".$ip."||";

$total_online=count($nowonline);

$fp=fopen($filename,"w");

rewind($fp);

for($i=0;$i<$total_online;$i++){

fputs($fp,$nowonline[$i]);

fputs($fp,"n");

}

fclose($fp);

if($total_online==0)$total_online=1;

$total_online = sprintf("%06d", $total_online);

///////////////////////////////////////////////////////

echo "document.write("·总ip访问:".$total_c."");";

echo "document.write("<br>");";

echo "document.write("·昨日访问:".$yesterday_c."");";

echo "document.write("<br>");";

echo "document.write("今日ip:".$today_c."");";

echo "document.write(" ");";

echo "document.write("·您访问:".$your_c."");";

echo "document.write("<br>");";

echo "document.write("当前在线:".$total_online."");";

exit;

?>

调用

用js调用文件count.php

在需要加入统计的的地方，添加：

php实现统计IP数及在线人数的示例代码

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