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Date: Fri, 23 Jan 2015 09:43:29 +0900
Message-ID: <CAGa2bXa4cW0kTQhjDBvMutOnUbicXx-+V0PTgfHMQ1Y=URoG+A@mail.gmail.com>
To: Andrea Faulds <ajf@ajf.me>
Cc: Larry Garfield <larry@garfieldtech.com>, 
	"internals@lists.php.net" <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=089e015371d033e01e050d471621
Subject: Re: [PHP-DEV] [RFC] Combined Comparison (Spaceship) Operator
From: yohgaki@ohgaki.net (Yasuo Ohgaki)

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Hi Andrea,

On Fri, Jan 23, 2015 at 9:24 AM, Andrea Faulds <ajf@ajf.me> wrote:

> Having it be the same as =3D=3D=3D would be inconsistent with our existin=
g
> sorting and comparison behaviour, so I don=E2=80=99t think it should be c=
hanged. If
> we made it strict like that, we=E2=80=99d also have to define a strict < =
and > as
> well, otherwise we have a problem, because in some cases ($x !=3D=3D $y &=
& !($x
> < $y) && !($x > $y)) is TRUE.


Ok. Now I understand. Since we don't/can't define strictly typed
less/greater than operator,
it makes sense. It can be handles

if (get_type($a) !=3D get_type($b)) { ... treat it as exception/error etc }
return $a <=3D> $b;

Regards,

--
Yasuo Ohgaki
yohgaki@ohgaki.net

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