bug #1

<?php
class testClass_forSerialize implements Serializable{
    public function serialize()
    {

        $ret = new \stdClass();
        foreach($this as $k=>$v){
            if ($v!==null) {
                $ret->{$k} = $v;
            }
        }

        $serializedData = serialize($ret);

        if (unserialize($serializedData)===false) {
            var_dump($serializedData);
            throw new \Exception("Serialize failed");
        }

        return $serializedData;
    }

    public function unserialize($data)
    {
        $dataObj = unserialize($data);
        foreach($dataObj as $k=>$v) {
            $this->{$k} = $v;
        }
    }
}


class testClass_forSerialize_02 extends \testClass_forSerialize{
    public $list = Array();

    public function __construct()
    {
        for ($i=0; $i<10; $i++) {
            $this->list[] = new \testClass_forSerialize();
        }
    }
}


$obj = new \testClass_forSerialize_02();

$ser = serialize($obj);
$obj2 = unserialize($ser);