[UPHPU] Accessing a Parent Object's Other Variables

[Alvaro Carrasco]

I disagree. Having a child hold a reference to it's parent (in 
composition of course) is a very common approach in object-oriented 
programming. I don't think you have any problem with readability by 
doing that and I don't think there's anything wrong with it at all.

Alvaro

Kirk Cerny wrote:
> But in this case it appears that A has B and B has A.
> I would be alright if it was just A has B.
> The circular part is where I think you get into trouble especially
> with readability, and understandable code.
>
> Kirk Cerny
>
>
>
> On Mon, Jun 22, 2009 at 11:09 PM, Richard K
> Miller<richardkmiller at gmail.com> wrote:
>   
>> This is the composition vs. inheritance debate, right?
>>
>> In inheritance, B is a descendant of A. With composition, A has a B.
>>
>> Richard
>>
>>
>>
>> On Jun 22, 2009, at 9:07 PM, Kirk Cerny wrote:
>>
>>
>>     
>>> This just seems like a really bad idea to me.
>>> You also mentioned that there is a parent class, but I dont see the
>>> extends keyword.
>>>
>>> <?php
>>>
>>> Class A {
>>>
>>>  var $msg = 'Why hello there my old friend';
>>>
>>>  function  __construct() {
>>>  }
>>>
>>> }
>>>
>>>
>>> Class B extends A {
>>>
>>>  function __construct() {
>>>  }
>>>
>>> }
>>>
>>>
>>>
>>> $b = new B();
>>>
>>> echo $b->msg;
>>>
>>> Kirk Cerny
>>>
>>>
>>>