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Date: Wed, 6 Jul 2011 21:33:38 +0800
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To: Stefan Neufeind <neufeind@php.net>
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Subject: Re: [PHP-DEV] [RFC] foreach_variable supporting T_LIST token
From: laruence@gmail.com (Xinchen Hui)

Hi:

  first of all, I am a guy whose english is poor, sorry for making you conf=
use.

  the feature request is here: https://bugs.php.net/bug.php?id=3D10203

  and I think this can make php code more flexible, and more making sense.

 example:

 foreach (array(
       array(3, array(1, 2)),
       array(7, array(3, 4)),
      ) as list($sum, list($op1, $op2))) {
        printf("%d + %d  =3D %d\n", $op1, $op2, $sum);
 }

 output:
  1 + 2  =3D 3
  3 + 4  =3D 7

 plz read the RFC for more details.

thanks

2011/7/6 Stefan Neufeind <neufeind@php.net>:
> Hi,
>
> On 07/06/2011 03:06 PM, Hannes Magnusson wrote:
>> 2011/7/6 Xinchen Hui <laruence@gmail.com>:
>>>
>>> =C2=A0 T_LIST is not allowed to used with foreach before.
>>>
>>> =C2=A0 and then there comes a freature request: =C2=A0#10203 =C2=A0allo=
w
>>> foreach($array as list($a,$b)
>>
>> Ironically enough you managed to miss the last closing ), enforcing
>> the point of this not being a natural syntax.
>>
>> Furthermore, without reading the RFC, is this the same as
>> foreach($array as $a =3D> $b) {}
>
> No, there $a would be the key. Intention would be, as I read the RFC,
> that this could be an arbitrary list.
>
>> or
>> foreach($array as $e) {
>> list($a, $b) =3D $e;
>> }
>
> Yes, I understood if like that. Just a short notation.
>
>> or.. ?
>>
>> that really doesn't look like something PHP should support imo.
>
> Don't see too many bad things about the idea ...
>
>
> Regards,
> =C2=A0Stefan
>
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> PHP Internals - PHP Runtime Development Mailing List
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>
>



--=20
=E6=83=A0=E6=96=B0=E5=AE=B8=C2=A0 =C2=A0 =C2=A0 =C2=A0 laruence
Senior PHP Engineer
http://www.laruence.com