如何遍历protected object转化为数组

<?php

class test{
protected $testOne = 1;
protected $testTwo = 'string';
}

$test = new test;

var_dump($test);

/**
*ReflectionClass::getDefaultProperties
*获取类的默认属性（包括了继承的属性）
*这个函数不区分静态和非静态属性，也不考虑可见性修饰符
*/
$refClass = new \ReflectionClass($test);

$dataArr = [];

foreach ($refClass->getDefaultProperties() as $key=>$val) {
　　$dataArr[$key] = $val;
}

var_dump($dataArr);