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Date: Thu, 22 Feb 2018 21:38:11 +0100
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To: =?UTF-8?Q?Pedro_Magalh=C3=A3es?= <mail@pmmaga.net>
Cc: PHP internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] Re: [RFC] [Discussion] Arrays starting with a negative index
From: me@kelunik.com (Niklas Keller)

Hey,

"Will no longer produce any output." in the BC example is wrong, it
will produce a notice due to an undefined index then.

> NOTE: If accepted, during the deprecation phase the following E_DEPRECATE=
D notice would be emitted in cases where the behavior will change:

I guess that means also $a[-3] =3D true; $a[] =3D false; will emit a
deprecation notice?

Regards, Niklas

2018-02-22 18:38 GMT+01:00 Pedro Magalh=C3=A3es <mail@pmmaga.net>:
> On Tue, Feb 13, 2018 at 8:03 PM, Pedro Magalh=C3=A3es <mail@pmmaga.net> w=
rote:
>
>> Hi internals,
>>
>> I want to bring up this RFC once again given that now seems to be the
>> right timing for it. I have previously canceled the vote when I initiall=
y
>> proposed this to land on 7.2 which was seen as too big of a BC for a min=
or
>> version. On a second attempt targeting 8.0 I have also canceled the vote=
 as
>> the inclusion of a deprecation notice in cases where the behavior will
>> change warranted further discussion.
>>
>> To address these issues, the current version of the RFC will have 2
>> separate votes:
>> - Introduce the new behavior on 8.0
>> - Introduce a deprecation notice on 7.3
>>
>> For those not familiar with the RFC, the general idea is that currently,
>> any array that has a number n as it's first numeric key will have for it=
's
>> next implicit key either n+1 if n >=3D 0 or 0 if n < 0. This RFC propose=
s to
>> make this consistent by always using n+1 regardless of the sign of n.
>> In code:
>> $a[-2] =3D true; // Current: Key is -2, RFC: Key is -2
>> $a[] =3D true; // Current: Key is 0, RFC: Key is -1
>> $a[] =3D true; // Current: Key is 1, RFC: Key is 0
>>
>> I invite you to read the full RFC: https://wiki.php.net/rfc/
>> negative_array_index and bring up any issues you see with the current
>> version before the voting period starts.
>>
>> Looking forward for any feedback.
>>
>> Regards,
>> Pedro Magalh=C3=A3es
>>
>
> Hi internals,
>
> I'd like to open the voting for this RFC in 5 days (27/2).
> Please bring up any feedback you may have about it before the voting peri=
od
> starts.
>
> Thanks in advance,
> Pedro Magalh=C3=A3es