适合有手机、平板电脑和电脑，方便关闭你的电脑（尤其在你想睡觉时 ），适合局域网。

用法：电脑上要安装apache，并把以下程序放在你的web项目文件夹。

<!DOCTYPE html>
<html lang="zh-CN">
<head>
 <title>computer-manager</title>
</head>
<body>
 <p>
 <?php
 if($_POST){
  $shutdown = array(
   'shutdown' =>'shutdown -s -t 0',
   'restart' => 'shutdown -r',
   'logout' => 'shutdown -l',
  );
  $cmdk = $_POST['cmd'];
  echo $cmd = $shutdown[$cmdk];
  system($cmd); // 执行操作
 }
 ?>
 </p>
 <form action="#top" method="post">
  <p>choose you want.</p>
  <select name="cmd">
   <option value="shutdown" selected="selected">
   shutdown/ go to sleep.
   </option>
   <option value="restart">
   restart computer/ ok, if no password.
   </option>
   <option value="logout">
   logout/ you don't want this.
   </option>
  </select>
  <input type="submit" name="submit" value="submit" />
 </form>
</body>
</html>