Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:108093
To: Nikita Popov <nikita.ppv@gmail.com>,
 PHP internals <internals@lists.php.net>
References: <CAF+90c-e7P5RZqEABgT=QDtEAC3wuPRjn6ysKQu15=7GJ09J5A@mail.gmail.com>
Autocrypt: addr=smalyshev@gmail.com; prefer-encrypt=mutual; keydata=
 xsJuBE9mqaARCACFSqcGmNunkjQQu3X+yXnTmFeEkvM4JXZTOBdR8aEevNGmmFEfyvjaDjWi
 9hcwp4E/lYtC+P7VsVjM1OSX9eq0jC/lGL0ZyRXek+mNy0n5H1NSuTpf9Y18LMqhc4G+RU+L
 cNiZ9K0DJuOOvNLPxW7OHZguxb3wdKPXNVa2jyRfJAKm2uaJJMT1mTmFT9a0Q8SKr+mUrrJk
 uG0H2o6SzrKt8Wwoint1eh67zVsJaJtQFchnEZnlawIcqP2yC4nLGR3MkubowxoEBYCZet18
 aHVVRbvpG2Qtob8Lu5xrsGbmXymTkHTdpvkfcJFADa8MzOL90zOxXwbGfbIZOlh5En8jAQCX
 lfnx2eQL3BSW/6XANa51dbWiEp1d1BAkpGKtZvlk0Qf+M9WAi+9aXMe3xP5krxtgnRNUf2WN
 6Zdy2MxL1RRJCFbytLhl0ronC49BsGYVGshdEH8xhBbiIOJKuVZ/DTl9bEm7P9c7CC7iJyVC
 khUAhouH6xzZQNLR+RU+QebYzXypVfl99Qk7EdMmr/WAZCHLuvanyqepC5EBsa3VnAfQemSN
 oBeGBKWWLiOsPjvS72+y1z4RUMAfXHn4l/sFMt8zt7/74AmJPwZquV41p4mPO12V4+xPyc6R
 sB84sfsk2QVivU8w8AkvGQeYjXoz7Iwao95+fWteVzZ36KRQvUckP8pGjHlDXnHxJ0HI1I/k
 OBZSjwRwUf0dd73y6erPhbLk+gf+NdI3H9KGJBzG5/rVyWKwUeQ9d5ud4jTJRkQGvAP5pg76
 vEa9dogbpe4W5Z+0BfbiJSnQmQWSHiZddj/t33ptbup44Ck6ZTgdlmFYMLF1hR47PIZTDKER
 EuKYGci/vq8snZvEJP9YCw/TtiHcMdrMKcY/+Lp8lQO0GHLPB9glVhnC0db6l1Xpg1CMI8/R
 ozBMcij30EgATggC/y2zbiqAFoS9FN9nXPbe4phStqABEyeZ+nXudt7PUYTjVgcrqo8bHZCi
 sBobWC7OnKyUzxVxzUeuPkIfmZuzkLaMw2McQdvwwsNvQ0DzaLP30c1Xsm/7EIYJcOWpzlVJ
 5QrdmE0/Bc0yU3RhbmlzbGF2IE1hbHlzaGV2IChQSFAga2V5KSA8c21hbHlzaGV2QGdtYWls
 LmNvbT7CegQTEQgAIgUCT2aqtAIbAwYLCQgHAwIGFQgCCQoLBBYCAwECHgECF4AACgkQL3lW
 vF2gS12XMwD9HuRIolSwIK77u8EY461y2u6sbX36n5/uo/LDQuxoi3sA/0MvpnvzOhv9Iufv
 vsZEj3E7i3h+iD5648YMwfTFCij+zsFNBE9mqaAQCADfZPMpjZkkGZj3BY/7ApoLq4mwqzbh
 +CpLXwNn20tFNvSXfb8RdeXvVEb7Scx+W9qYpiaun2iXJgCVH8fgpZpR856ulT1q6uCG++CX
 ubEvip/eJkZl93/84h04KQJwsgOrAh0Om3OePRn8Pr+++0LNS0EL8uX/YHeTOGOnnmTqYTey
 SBVFdov6L4mepddfjekicKQqhL7mZh/xuq29JijT0uNNX8v4vDWQDu5dlAcdd+uB3gcXMD/P
 ginD11zp+6wtrWCm/+yBqpvDwXQX5PGUnwvbRfl7Ay3MmwmoXiecZMg0dwTSc7e0lhB4HGRH
 ZdBMJB4rHUVGdzqujK/ctOvrAAMFB/0Utb76Qe6sCMlHxVAmeE/fbo7Pi05btZ/x01r67dHf
 aMSP0riCKJ7M0OW+jAXtu9+z/BVnYisW67WWfxl2cS5tZDgiHgJARXWUOO72+sScHP8KQmTl
 1z16gyKbwY3SmyBkwcpOL35nhUWNLy93syPoY6sZUTikr2bZYukHDQ33XBPs4e6MbWKfsa9q
 aVmnlOF3k5UqChjutfHaEa4Q7VP4wBIpphHBi9MI16oJIzzBPbGl2uoedjwiZ6QeQZnSuOVY
 ZxU2d3lRA8PrtfFN1VSlpEm/VcAvtieHUYWHN0wOu+cp3Slr5XJVNjTjJhl28SlinMME54mK
 AGf2Ldr/dRwXwmEEGBEIAAkFAk9mqaACGwwACgkQL3lWvF2gS126EQD/VVd3FgjLKglClRQP
 zdfU847tqDK4zJjbmRv5vLLwoE0A+wbrQs7jVGU3NrS0AIl5vUmewpp2BKzSkepy23nWmejw
Message-ID: <a36ac509-8ad5-9620-ae45-c626ee24e58f@gmail.com>
Date: Fri, 10 Jan 2020 11:58:22 -0800
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:68.0)
 Gecko/20100101 Thunderbird/68.3.1
MIME-Version: 1.0
In-Reply-To: <CAF+90c-e7P5RZqEABgT=QDtEAC3wuPRjn6ysKQu15=7GJ09J5A@mail.gmail.com>
Content-Type: text/plain; charset=utf-8
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Subject: Re: [PHP-DEV] What to do with "$array[foobar]"?
From: smalyshev@gmail.com (Stanislav Malyshev)

Hi!

> I think there's two ways to address this. One is to deprecate and
> eventually remove the non-wrapped array interpolation syntax entirely,
> requiring people to use the generic "{$array['foobar']}" syntax instead.
> For the sake of consistency, I think this would also include deprecating
> the "$array[0]" variant.

The first part seems to make sense but I don't think losing "$array[0]"
does... I get the consistency argument but I feel most people would
rather have this useful syntax working and not worry about the fact that
it's theoretically "inconsistent". Consistency only helps when it allows
to make useful inferences, something not working is rarely useful
inference.

> The other is to add support for "$array['foobar']" and
> "$array[some(complex(expression()))]" in general, and only deprecate the
> "$array[foobar]" syntax.

This also seems an acceptable option, if we can make stuff inside []
behave reasonably. We probably don't actually need anything really
complex - if one wants complex stuff, {} syntax should be used. I think
primary target here should be simple stuff like numbers and strings
work, all the rest is optional.

-- 
Stas Malyshev
smalyshev@gmail.com