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("&nbsp;");";
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：

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

题记：

第12行$c_info = explode(‘,’, $count_info[0]);

第82行echo “document.write(‘·总IP访问:”.$total_c.”‘);”;

第83行echo “document.write(‘<br>’);”;

第84行echo “document.write(‘·昨日访问:”.$yesterday_c.”‘);”;

第85行echo “document.write(‘<br>’);”;

第86行echo “document.write(‘·今日IP:”.$today_c.”‘);”;

第87行echo “document.write(‘<br>’);”;

第88行echo “document.write(‘·您 访 问:”.$your_c.”‘);”;

第89行echo “document.write(‘<br>’);”;

第90行echo “document.write(‘·当前在线:”.$total_online.”‘);”;

注释：如果有的系统不兼容就要改以上这几行都需要改成单引号才能正常运行！