Re: Declaration of Bar::__construct() must be compatible with that of Foo::__construct()

At 23:52 25/02/2004 +0100, Timm Friebe wrote:

On Wed, 2004-02-25 at 23:44, Marcus Boerger wrote: Hello Timm, i had the same expirience today too. And also for me it makes not much sense. The constructor shouldn't check inheritance rules. Neither should other methods follow this. What if I want to add a non-default parameter to an overriden method?

Uhmmm if you do that then Bar isA Foo will not be correct.

<?php class Foo {

    function connect($server) {
    }

} class Bar extends Foo {

    function connect($server, $port) {
    }

} ?> I see where the problem comes from: zend_do_perform_implementation_check() is called from do_inherit_method_check() (both in zend_compile.c) which in turn is called for inheritance *and* for interfaces. The behaviour is fully desirable when implementing interfaces but not for regular inheritance.

Sure it is. Regular inheritance has to follow the same isA rules as interfaces. Inheritance is exactly the same thing except that it also has code and private/protected methods/members whereas interfaces don't. Andi