RE: [PHP] Parent Object
| From: | Edward Kay | Date: | Wed, 01 Aug 2007 12:34:58 +0000 |
| Subject: | RE: [PHP] Parent Object | ||
| References: | 1 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-259984@lists.php.net to get a copy of this message | ||
> -----Original Message-----
> From: Ralph Kutschera [mailto:ecuapac@gmx.at]
> Sent: 01 August 2007 13:19
> To: php-general@lists.php.net
> Subject: [PHP] Parent Object
>
>
> Hallo!
>
> class A {
> ...
> }
>
> class B extends A {
> ...
> $name = get_parent_class($this); // would be "A"
> ...
> }
>
> This is *not* what I want!
>
> class B {
> ...
> $name = get_parent_class2($this); // should give "A"
> ...
> }
>
> class A {
> ...
> $b = new B();
> ...
> }
>
> This *is* what I want!
>
> How can i resolve this issue? I don't want to know which class is being
> inherited, but I'd like to know which class has created the
> current object.
>
> TIA, Ralph
The concept of a parent class only exists with inheritance. In terms of
finding where an instance is created from this is non-sensical. Who's to say
the instance is even created by another class? It could be in a function.
If you want to be able to access an object that created another object, pass
it in via the constructor, e.g.
class A {
...
$b = new B($this);
...
}
class B {
private $a;
public function __construct($a) {
$this->a = $a;
}
}
Edward