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In-Reply-To: <D5013CDA-61F7-467F-B896-F627D8DBA156@ajf.me>
Date: Tue, 16 Dec 2014 11:05:40 +0000
Cc: internals@lists.php.net
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Message-ID: <216D6925-EB1A-49E0-AD6B-42100C2F81DB@ajf.me>
References: <548FEE87.7020602@gmail.com> <549009EE.7040808@fischer.name> <D5013CDA-61F7-467F-B896-F627D8DBA156@ajf.me>
To: Markus Fischer <markus@fischer.name>
X-Mailer: Apple Mail (2.1993)
Subject: Re: [PHP-DEV] [RFC][VOTE] Objects as Keys
From: ajf@ajf.me (Andrea Faulds)

>=20
> On 16 Dec 2014, at 10:52, Andrea Faulds <ajf@ajf.me> wrote:
>=20
> Exactly. If I were to do this:
>=20
>    <?php
>    class Foo {
>        public $foo;
>        function __construct($foo) {
>            $this->foo =3D $foo;
>        }
>        function __toKey() {
>            return $this->foo;
>        }
>    }
>    $arr =3D [];
>    $arr[] =3D new Foo(1);
>    var_dump($arr);
>=20
> I would get this:
>=20
>    array(1) {
>      [0]=3D>
>      int(1)
>    }

Er, a correction=E2=80=A6 the example should=E2=80=99ve been something =
like this:

    $arr =3D [];
    $arr[new Foo(1)] =3D NULL;

Producing this:

    array(1) {
      [1]=3D>
      NULL
    }

Obviously, it has no effect on values, only keys, sorry!

--
Andrea Faulds
http://ajf.me/