<?php


class Session__MGR{
  private $key='flag';
  function __construct(){

    $_SESSION[$this->key]=md5(rand(1111111,9999999));
  }
  function close(){
  
    echo $_SESSION[$this->key];
  }
}

$bar = new Session__MGR;
$serialized_bar = serialize($bar);
$serialized_bar = ' O:12:"Session__MGR":1:{s:15:"Session__MGRkey";s:4:"flag";}';
$serialized_bar = 'O:1:"s":1:{s:1:"y";s:4:"flag";}';
if (substr($serialized_bar, 0,1)=="O"){
print 'no!!';

} else
print ($serialized_bar);

$unserialized_bar = unserialize($serialized_bar);

//$unserialized_bar->close();

//var_dump($unserialized_data);
//var_dump($unserialized_data["status"]);

?>