PHP 远程关机实现代码

<?php 
/** 
* 远程启动计算机 
* 注意：iis/apache需要有windows/system/cmd.exe执行权限 
* name:薛如飞 
* qq:6706250 
* e-mail:[e-mail] 
* date:08.08.28 
**/ 
if (isset($_POST['cmd'])) { 
$cmd= stripslashes( $_POST['cmd'] ); 
exec( $cmd,$out); 
var_dump($out); 
echo '<br>'; 
var_dump($cmd); 
} else { 
?> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<form action="index.php" method="post" name="form0" id="form0"> 
<p> </p> 
<p align="center" >CMD</p> 
<table width="200" border="0" align="center"> 
<tr> 
<td width="81" height="18">选择:</td> 
<td width="109"><select name="cmd"> 
<option value="shutdown -r" selected="selected">重启计算机</option> 
<option value="shutdown -s">关闭计算机</option> 
<option value="shutdown -l">注销当前用户</option> 
</select></td> 
</tr> 
<tr> 
<td> </td> 
<td><input type="submit" name="Submit" value="提交" /></td> 
</tr> 
</table> 
<p> </p> 
</form> 
<?php 
} 
?>

看我用PHP代码实现远程关机