原文地址：https://www.wjcms.net/archive…

写在后面的话

很多人有这样的需要，就是统计网站拜访 IP 以及在线的人数。明天咱们就看一下具体实现办法。

开启依赖函数模块

实现这个性能，须要依赖 putenv() 函数。上面两种形式均可。

更改 php.ini 文件办法

找到 php.ini 文件，搜寻 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

应用宝塔面板

点击左侧软件治理，找到 php，而后设置 -> 禁用函数。

删除 putenv，而后重启 php 即可。

实现函数

在 count.php 同目录下创立文件：count,temp,online。新建文本文档 count.txt，去掉扩展名即为 count 了；
linux 零碎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 在线工夫，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", $total_online);
///////////////////////////////////////////////////////
echo "document.write("·总 IP 拜访:".$total_c."");";
echo "document.write("<br>");";
echo "document.write("·昨日拜访:".$yesterday_c."");";
echo "document.write("<br>");";
echo "document.write(" 今日 IP:".$today_c."");";
echo "document.write("&nbsp;");";
echo "document.write("·您 访 问:".$your_c."");";
echo "document.write("<br>");";
echo "document.write(" 以后在线:".$total_online."");";
exit;
?>

调用

用 JS 调用文件 count.php
在须要退出统计的的中央，增加：

<script src="/php/count.php"></script>