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Date: Sun, 03 Feb 2013 11:50:48 -0800
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To: Karoly Negyesi <karoly@negyesi.net>
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Subject: Re: [PHP-DEV] Proposal for serious BC compatibility aka language
 versioning
From: rasmus@lerdorf.com (Rasmus Lerdorf)

On 02/03/2013 11:44 AM, Karoly Negyesi wrote:
> Well, either I misunderstood the policy or it's broken. Here are some
> (note: please do not argue whether these are more correct than before,
> they very well might be but they broke backwards compatibility):
> 
> For example, in 5.4 array_diff_assoc began to throw a notice when
> casting to string.
> 
> Again in 5.4, using a string offset against a string throws a warning.
> It wasn't doing that before.

We do not consider a change in warnings/notices a BC break. I realize
for certain test frameworks and custom error handlers it could break
things if they are expecting a specific warning or lack of warning, but
the code itself behaves exactly as it did before and as such there is no
BC break.

-Rasmus