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Posted by Edwin Barrios on 10/04/71 11:23
Hi !
you have to defined protected $var.
This is a example where php5 OO model has a little ambiguities.
Thing a few in your problem !, on de child class scope $var it's
private then when yo execute printVar(), you aren't executed on parent
scope you are calling a copie on child scope, then you don't have
access to $var. Only when you use parent scope throw
parent::printVar() , you realy calling the parent class instance into
your child then print result.
Then when you want to have a variable for being used on a public
inherit method you have to defined protected
On 8/8/05, Norbert Wenzel <mail@brain4art.at> wrote:
> Is it possible to run inherited methods in the scope of the child class?
> In my case I have an abstract class called 'Company' and some child
> classes. There is a non abstract function in 'Company' which prints
> '$this->phoneList'. That function should be the same to all child
> classes, without rewritting it in every class.
>
> I call the printing method via the child class like
> $childObject->printPhoneList();
> The call seems to be handed over to the parent class 'Company' which is
> fine. But the $this points to the phoneList of the abstract parent
> class. So the phoneList in the abstract class seems to be unset, since i
> have set the phone list in the child class.
>
> Here's a short example, showing what I mean:
>
> <?php
>
> abstract class AbstractClass {
>
> private $var;
>
> public function printVar() {
> echo('var: ' . $this->var . '<br>');
> }
>
> }
>
> class ConcreteClass extends AbstractClass {
>
> public function __construct($var) {
> $this->var = $var;
> }
>
> public function printVarChild() {
> echo('var (child): ' . $this->var . '<br>');
> }
>
> }
>
> $cl = new ConcreteClass(15);
> $cl->printVar();
> $cl->printVarChild();
> ?>
>
> Output is:
> var:
> var (child): 15
>
>
> Has anyone an idea how to print the $var of the child, without copying
> the method in every child class?
>
> thanks in advance,
> Norbert
>
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