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Date: Sun, 24 Jun 2018 09:29:37 -0600
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To: rtheunissen@php.net
Cc: internals <internals@lists.php.net>
Content-Type: text/plain; charset="UTF-8"
Subject: Re: [PHP-DEV] Equality and relative ordering of objects
From: levim@php.net (Levi Morrison)

On Sun, Jun 24, 2018 at 8:11 AM Rudi Theunissen <rtheunissen@php.net> wrote:
>
> Here is a WIP implementation of `__compareTo`, with some decent tests.
>
> https://github.com/php/php-src/compare/master...rtheunissen:rt-compare-to-magic-method?diff=unified

Help me understand the nullable return. If you are defining this
operator then by definition you don't want the standard behavior, so
why is returning null helpful? Seems like implementors ought to throw.