仅检索子类的属性 [英] Retrieving only properties of the child class

问题描述

我有一个类似

class parent{
   public $foo;
}

class child extends parent{
   public $lol;

    public function getFields()
    {
        return array_keys(get_class_vars(__CLASS__));
    }
}

然后我得到一个包含子属性的数组，以...

and I get a array with the child properties in it to...

array('foo','lol'); 

是否有一种简单的解决方案仅从子类中获取属性?

is there a simple solution to get only the properties from the child class?

推荐答案

尝试这种方法(可能包含伪PHP代码:))

Try this approach (may contain pseudo PHP code :))

class parent{
   public $foo;

   public function getParentFields(){
        return array_keys(get_class_vars(__CLASS__));
   }
}

class child extends parent{
   public $lol;

    public function getFields()
    {   
        $parentFields = parent::getParentFields();
        $myfields = array_keys(get_class_vars(__CLASS__));

        // just subtract parentFields from MyFields and you get the properties only exists on child

        return the diff
    }
}

使用parent :: getParentFields()函数确定哪些字段是父字段的想法.

The idea that using parent::getParentFields() function to determine which fields was parent fields.

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