php – 当被覆盖时如何调用父方法？

这是我的代码：

class foo {
 $text = "wordl\n";
 protected function test() {
  echo $this->text;
 }
}

class foo2 extends foo {
 public function test() {
  echo "Hello,";
  parent::test(); //Hmm ... I cant use parent::test() bcs in my case foo::test() require object data from $this
 }
}

$x = new foo2;
$x->test();

foo :: test()方法被foo2 :: test()覆盖.是否可以调用foo :: test()形式foo2 :: test()？