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Subject: Re: [PHP-DEV] array_key_exists BC break
From: johannes@php.net (Johannes =?ISO-8859-1?Q?Schl=FCter?=)

On Thu, 2008-11-06 at 23:21 +0200, Stan Vassilev | FM wrote:
> The exception should be made for any class implementing the relevant SPL 
> interfaces, and that's not just ArrayObject.
> 
> It may be seen as just "one class" but actually all of the "transparent" 
> iterator implementations (for iterating SQL, XML, or whatever data you have) 
> hinge on those interfaces and that class to work as a normal array with the 
> array functions.

a) I showed the 5.2 behavior, using "proper" interfaces is a silent
change which might break application and is probably hard to find. While
I don't know how many people rely on these "features".

b) It can be quite confusing with all of the tons of array functions
accepting different kinds of objects.

johannes