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Date: Tue, 7 May 2013 11:00:51 -0700
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To: Thomas Anderson <zelnaga@gmail.com>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] idea: implement a Comparable interface
From: aharvey@php.net (Adam Harvey)

On 7 May 2013 09:17, Thomas Anderson <zelnaga@gmail.com> wrote:
> It'd be nice if, when doing $objA > $objB, that that'd invoke
> $objA->__compareTo($objB) or something, much like Java's Comparable
> interface.

I wrote https://wiki.php.net/rfc/comparable a couple of years ago =E2=80=94
there's a patch there that would probably still apply without too much
work to master. About the only difference was that I didn't double
underscore the magic method (in line with both Java and PHP interfaces
like Countable).

I ended up withdrawing it because the response at the time was
somewhere between "meh" and "outright hostility"; I didn't see much
point devoting time to something that was going to fail a vote
regardless. It could be dusted off and reproposed for 5.6 if there was
enough interest, but my guess is that it'd still be an uphill battle
(even though some internal classes, most notably DateTime, do exactly
this).

Adam