Posted by Tim Van Wassenhove on 12/31/06 12:12

> class A
> {
> public function methodA(){
> //some useful code
> }
> class B
> {
> private A $instanceOfA; //but I am really not sure if this one's works
>
> public __construct() {
> $instanceOfA=new A();
> }
> public function methodB(){
> $this->instanceOfA->methodA();
> }
> }
> }
> Anyway this is legal in terms of OO-Programming and also a well used
> method for composing classes. I tried this out in PHP but it doesn't
> seem to work. Obviously you'll have to create the instance within the
> function/method you want to use it. Like:

What you really wanted to do in the constructor of B was the following:

public __construct() {
$this->instanceOfA = new A();
}

Because with $instanceOfA you create a local (in that function) variable...


--
Tim Van Wassenhove <url:http://www.timvw.be/>

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