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Date: Thu, 12 Sep 2019 23:56:14 +0200
Message-ID: <CAH0Uv3HM0d5odu4Fft=RpJuyhiCKPR2XODYZb6EzW-6-0UtW1w@mail.gmail.com>
To: Marco Pivetta <ocramius@gmail.com>
Cc: Arvids Godjuks <arvids.godjuks@gmail.com>, Rowan Collins <rowan.collins@gmail.com>, 
	PHP internals <internals@lists.php.net>
Content-Type: multipart/alternative; boundary="0000000000008c258205926235ca"
Subject: Re: [PHP-DEV] [RFC] Reclassifying engine warnings
From: andreas@dqxtech.net (Andreas Hennings)

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In the past I suggested operators like
??++
??+=3D
for this purpose.

But the [? $key] is even better, because it makes it explicit which array
keys we expect to already exist and which we don't.

$var[$k0][? $k1][? $k2]++;

This is great but the second "?" is redundant isn't it?




Marco Pivetta <ocramius@gmail.com> schrieb am Do., 12. Sep. 2019, 16:26:

>  <http://ocramius.github.com/>
>
>
> On Thu, Sep 12, 2019 at 4:02 PM Arvids Godjuks <arvids.godjuks@gmail.com>
> wrote:
>
> >
> >
> > =D1=87=D1=82, 12 =D1=81=D0=B5=D0=BD=D1=82. 2019 =D0=B3. =D0=B2 15:33, M=
arco Pivetta <ocramius@gmail.com>:
> >
> >> Hey Rowan,
> >> <http://ocramius.github.com/>
> >>
> >>
> >> On Thu, Sep 12, 2019 at 3:30 PM Rowan Tommins <rowan.collins@gmail.com=
>
> >> wrote:
> >>
> >> > For instance, for undefined array keys, what if we had an operator f=
or
> >> > "initialise and retrieve", such as $foo[? 'bar']. Then we could
> simplify
> >> > ugly code like this:
> >> >
> >> > if ( ! isset($foo[$key1]) {
> >> >    $foo[$key1] =3D [];
> >> > }
> >> > if ( ! isset($foo[$key1][$key2]) {
> >> >    $foo[$key1][$key2] =3D 0;
> >> > }
> >> > $foo[$key1][$key2]++;
> >> >
> >> >
> >> > With something safe but succinct like this:
> >> >
> >> > $foo[? $key1][? $key2]++;
> >> >
> >>
> >> $foo[$key1][$key2] =3D ($foo[$key1][$key2] ?? 0) + 1;
> >>
> >>
> >>
> > This message contains a healthy dose of sarcasm.
> >
> >
> No sarcasm intended: question is about the verbosity and length of a
> *proper* (correct =3D no warnings/notices/errors, matches type expectatio=
ns)
> checked solution, and I provided a simple one-liner that is both readable
> and correct.
>
> You can make what you want out of this, but there was most certainly no
> sarcasm.
>
> Marco Pivetta
>
> http://twitter.com/Ocramius
>
> http://ocramius.github.com/
>

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