PHP : Function argument must be an Object with dynamic class name

Question

所以我是面向对象编程领域的新手，我目前正面临这个问题(所有内容都在代码中进行了描述):

<?php
    class MyClass {
        // Nothing important here
    }

    class MyAnotherClass {
        protected $className;

        public function __construct($className){
            $this->className = $className;
        }
        public function problematicFunction({$this->className} $object){
            // So, here I obligatorily want an $object of
            // dynamic type/class "$this->className"
            // but it don't works like this...
        }
    }

    $object = new MyClass;
    $another_object = new MyAnotherClass('MyClass');

    $another_object->problematicFunction($object);
?>

任何人都可以帮助我吗？

谢谢，马克西姆(来自法国:对不起我的英语)

Answer 1

你需要的是

public function problematicFunction($object) {
    if ($object instanceof $this->className) {
        // Do your stuff
    } else {
        throw new InvalidArgumentException("YOur error Message");
    }
}