Re: Class Properties in Interfaces?

Marcus Boerger wrote: >> unset($o_Foo->bar); >> echo $o_Foo->bar; > ?>> > >> outputs ... >> Notice: Undefined property: foo::$bar in C:\- on line 13 > > At this point you found an error. Because this allows unset() to modify an > instance in a way that it nolonger adheres to its class that means at this > point the following is nolonger valid: $o_Foo is-a foo. And that is the > basic design rule we chose for PHP. Please file as a bug! So you are saying that $o_Foo->bar = array(42); is ok when the class "expects" a string but unset($o_Foo->bar); or (as as slight variation) $o->Foo->bar = null; is not? I'd ask not to change this behaviour as you'll just add another (IMHO bogus) restriction on how an object or class can be modified at runtime. An error possibly caused by this is already handled by the E_NOTICE message anyway. For comparison: Having to declare static class variables is a similar restriction which got in my way more often than it helped me. - Chris