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References: <93906607-BDF3-4021-95F0-AFBA87AB5F6B@gmail.com>
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Date: Fri, 31 Aug 2018 20:56:46 +0200
Message-ID: <CADyq6sKTxHiV2BFzSn-5nNHBHy+nEWXGt5Ca+j5YB6ap=LNptA@mail.gmail.com>
To: Claude Pache <claude.pache@gmail.com>
Cc: PHP Internals List <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Assigning to a reference returned by a function/method
From: ocramius@gmail.com (Marco Pivetta)

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I'd rather put everything that has to do with references in a pot and throw
it at the core of the sun =F0=9F=94=A5

Expanding features around references, especially since they are known to be
problematic, makes them a bigger problem.

On Fri, 31 Aug 2018, 20:44 Claude Pache, <claude.pache@gmail.com> wrote:

> Hi internals,
>
>
> Today I tried something like that:
>
> <?php
> function &fooRef(...$args) {
>     // ... impl details
>     return $someRef;
> }
>
> fooRef('a', 'b') =3D 42;
> ?>
>
> and it failed miserably (Fatal Error: Can't use function return value in
> write context).
>
> Naturally, as workaround, I could write:
>
> <?php
> $ref =3D& fooRef('a', 'b');
> $ref =3D 42;
> unset($ref);
> ?>
>
> which is passable for one instruction, but not so much for ten similar
> instructions in a row.
>
> Another hackier workaround:
>
> <?php
> function arrayFoo(...$args) {
>     // ... impl details
>     $arr =3D [ &$someRef ];
>     return $arr;
> }
>
> arrayFoo('a', 'b')[0] =3D 42;
> ?>
>
> (... and I was wondering that it worked, while <?php [ &fooRef('a', 'b')
> ][0] =3D 42; ?> triggered a fatal error).
>
>
> So... what do you think? Is it reasonable to allow to assign to a
> function/method return value, when it is a reference?
>
>
> =E2=80=94Claude
>
>
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>

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