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Date: Fri, 22 Jun 2018 06:39:45 -0600
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To: rtheunissen@php.net
Cc: Dan Ackroyd <danack@basereality.com>, 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)

> 1. You can't override the behaviour of `<`, `<=`, `>`, `>=`, `==`, `!=`
> with a userland implementation.
> 2. Therefore, you won't be able to affect the internals of array functions
> like `in_array`, `sort` etc.

In my opinion we should have functions which take comparator and/or
equality functions as parameters even if we can override these
operators. I'd like to see an outline of such a plan as part of this
RFC or as a precursor to it.