使用后期静态绑定访问父级

Question

我希望能够获得已故的静态绑定类的父级。我写了一个无法运行的代码示例来澄清我的意思：

class A
{
    public static function getCombinedProperties()
    {
        $a = static::$properties; // Late static binding means this will work
        if(isset(static::parent::$properties))  // Calling static::parent obviously does not work
            $a = array_merge_recursive($a, static::parent::$properties);
        return $a;
    }
}

class B extends A
{
    public static $properties = ['fruits' => ['pineapple', 'mango']];
}

class C extends B
{
    public static $properties = ['fruits' => ['apple', 'banana'], 'vegetables' => ['carrot', 'pea']];
}

B::getCombinedProperties(); //desired output ['fruits' => ['pineapple', 'mango']]
C::getCombinedProperties(); //desired output ['fruits' => ['apple', 'banana', 'pineapple', 'mango'], 'vegetables' => ['carrot', 'pea']]

当从C类调用该方法时，A类是否可以访问B类的$ properties属性？

Answer 1

这似乎有用，虽然感觉很讨厌：

class A
{
    public static function getCombinedProperties()
    {
        $a = static::$properties; // Late static binding means this will work
        $class = new \ReflectionClass(get_called_class());
        $parent = $class->getParentClass();
        $parentName = $parent->getName();
        if(isset($parentName::$properties))
            $a = array_merge_recursive($a, $parentName::$properties);
        return $a;
    }
}