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Date: Tue, 12 Apr 2016 16:03:19 +0200
Message-ID: <CAJW__o3rck2FtOv3JKFgWkVe-qgaRSiVqdwGweQEqJPrJHUS4g@mail.gmail.com>
To: "Ivan Enderlin@Hoa" <ivan.enderlin@hoa-project.net>
Cc: Internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary=047d7b3a8412a509c805304a1f15
Subject: Re: [PHP-DEV] Array key access on non-array values - to be made illegal?
From: kalle@php.net (Kalle Sommer Nielsen)

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On Apr 12, 2016 15:02, "Ivan Enderlin" <ivan.enderlin@hoa-project.net>
wrote:
>
> Hello Marco,
>
> Actually, you are trying to access to something that does not exist, so
you get a null value. This part is logical. However, yes, a notice would be
welcomed except it may be skipped for historical reasons I reckon. Probably
to work well with `isset` or similar scenario.

Isset works regardless, because it is implemented as a language construct.

But on topic, then yes, it should emit a notice.
>
> Cheers.
>
>
> On 12/04/16 14:59, Marco Pivetta wrote:
>>
>> Hello,
>>
>> I just stumbled upon behavior that seems to "fail silently" regardless of
>> its very questionable validity:
>>
>> <?php
>>
>> $a = 1;
>>
>> var_dump($a[123]); // NULL, no notice
>>
>> https://3v4l.org/b3rDr
>>
>> Are there specific reasons why no notice is thrown? Is it by design? If
so,
>> does anyone remember why?
>>
>> I haven't checked if this affects other types too. I know that an
>> assignment to an array key of a non-array would cause a cast of the value
>> to `array`, but a mere read operation should surely cause a notice to be
>> raised in the above scenario.
>>
>> Cheers,
>>
>> Marco Pivetta
>>
>> http://twitter.com/Ocramius
>>
>> http://ocramius.github.com/
>>
>
>
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