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Cc: Markus Fischer <markus@fischer.name>,
 "internals@lists.php.net" <internals@lists.php.net>
Date: Tue, 16 Dec 2014 09:34:23 -0200
To: Andrea Faulds <ajf@ajf.me>
Subject: Re: [PHP-DEV] [RFC][VOTE] Objects as Keys
From: guilhermeblanco@gmail.com (Guilherme Blanco)

Hi,

All I can say is that the lack of this feature is one of the main reasons wh=
y Doctrine doesn't fully work with composite keys.
With this enhancement it would now become possible to implement a proper Ide=
ntityMap.

[]s,

On Dec 16, 2014, at 9:05 AM, Andrea Faulds <ajf@ajf.me> wrote:

>>=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)
>>   }
>=20
> Er, a correction=E2=80=A6 the example should=E2=80=99ve been something lik=
e this:
>=20
>    $arr =3D [];
>    $arr[new Foo(1)] =3D NULL;
>=20
> Producing this:
>=20
>    array(1) {
>      [1]=3D>
>      NULL
>    }
>=20
> Obviously, it has no effect on values, only keys, sorry!
>=20
> --
> Andrea Faulds
> http://ajf.me/
>=20
>=20
>=20
>=20
>=20
> --=20
> PHP Internals - PHP Runtime Development Mailing List
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>=20