Re: inheritance check too strict?

You can.. ------Original Message------ From: "Jean-Sébastien H." To: nrixham@gmail.com Cc: postmaster@colder.ch Cc: internals@lists.php.net Subject: Re: [PHP-DEV] inheritance check too strict? Sent: 20 Aug 2010 11:54 No it's wrong. A Child is a Parent so we must be able to pass a Parent to the method equals() defined on Child. The declaration of the parent functions must always be valid in the children. On Thu, 19 Aug 2010 23:16:41 +0100, Nathan Rixham <nrixham@gmail.com> wrote: > lol, got it - confused myself for a bit there! yes agreed.. > > incorrect: > class Parent { function equals(Parent $o) {} } > class Child extends Parent { function equals(Child $o) {} } > > correct: > class Parent { function equals(Child $o) {} } > class Child extends Parent { function equals(Parent $o) {} } > > sorry about the noise, > > nathan -- Jean-Sébastien H. au-fil-du.net Sent using BlackBerry® from Orange