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public/protected class properties don't override private properties on parent classes?（1个答案）
Why can child override and access its parent private method?（1个答案）
2年前关闭.

class A 
{
    private function foo() {
        echo "A class success!\n";
    }

    public function test() {
        echo get_class($this) . PHP_EOL; // C class here
        var_dump($this) . PHP_EOL; // $this is object of C class here
        $this->foo(); // but calling A class method foo here while we have our own foo in C. Why?
    }
}

class C extends A 
{
    private function foo() {
        echo "C class success!";
    }
}

$c = new C();
$c->test();

输出

C
object(C)#1 (0) {
}
A class success!

型
我们在C类中覆盖了私有方法foo，但仍然调用A的foo。为什么？$this -是调用对象的值。所以我们不能覆盖私有方法，或者我失去了什么？