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Date: Wed, 17 Dec 2014 11:05:07 -0700
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To: Stanislav Malyshev <smalyshev@gmail.com>
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Subject: Re: [PHP-DEV] [RFC][VOTE] Objects as Keys
From: levim@php.net (Levi Morrison)

This RFC proposes that we store the hash of an object instead of the
actual object. That's simply not useful to me and likely prevents us
from adding support for objects as keys in the future should we want
it.

In addition, it adds yet another behavior to arrays which do so many
things already. I would much rather have structures that focus on
narrow responsibilities and do that well, such as an improved Map
structure instead of SplObjectStorage. This isn't some pie-in-the-sky
wishing, either; I've been working on this for years now in my spare
time.