访问阵列中的受保护对象


accessing protected object in array

访问body的正确语法是什么,因为这些是对象而不是数组,并且父对象是node:protected

 CourseObjectContent Object
    (
        [node:protected] => stdClass Object
            (
                [nid] => 9397
                [type] => book
                [language] => 
                [uid] => 1
                [status] => 1
                [created] => 1364217732
                [changed] => 1367581312
                [comment] => 0
                [promote] => 0
                [moderate] => 0
                [sticky] => 0
                [tnid] => 0
                [translate] => 0
                [vid] => 9406
                [revision_uid] => 1
                [title] => title text
                [body] => "body text"
    }

Protected(与Private一样)类的成员/属性/变量不能直接在类外访问,也不能被类Object直接访问。所以你需要写一个类成员函数来访问这个类的保护对象数组

class CourseObjectContent {
    protected $node;
    //member function to access 'protected' members of class
    function accessObjectArray(){
        //TODO:Your code to access protected object array
    }
    //other member functions
}

必须在对象的类中编写一个函数来返回'body'值。只有属于同一类的函数才能访问该类的受保护值。