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Date: Thu, 29 Jan 2015 23:43:06 +0200
Message-ID: <CAPhkiZx1mz43RT7NkwakUcs-mh1On3JNN01zMXs51ztCPq7q3g@mail.gmail.com>
To: Yasuo Ohgaki <yohgaki@ohgaki.net>
Cc: "internals@lists.php.net" <internals@lists.php.net>
Content-Type: text/plain; charset=UTF-8
Subject: Re: [PHP-DEV] Use of {} with member.
From: narf@devilix.net (Andrey Andreev)

Hi,

On Thu, Jan 29, 2015 at 11:32 PM, Yasuo Ohgaki <yohgaki@ohgaki.net> wrote:
> Hi all,
>
> I came across with bug #68947 https://bugs.php.net/bug.php?id=68947
> and realized small inconsistency.
>
> http://3v4l.org/ldZKl
>
> $obj->${array[$key]}; // Syntax error
> $obj->{$array[$key]}; // Works
>
> $obj->${key}; // E_NOTICE. Does not work
> $obj->{$key}; // Works
>
> echo "${array[$key]}"; // Works
> echo "{$array[$key]}"; // Works
>
> Of course, script/string parsing aren't the same. Are there technical
> reasons
> why ${value} is not allowed? If there are, we may encourage
>
> echo "{$array[$key]}"; // Works
>
> rather than
>
> echo "${array[$key]}"; // Works
>

Is somebody actually recommending the latter form? I'm surprised that
it even works ... that should be a syntax error IMO.

Cheers,
Andrey.