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Date: Wed, 25 Mar 2020 19:24:41 +0100
To: "Rowan Tommins" <rowan.collins@gmail.com>
Cc: "php internals" <internals@lists.php.net>
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Subject: Re: [PHP-DEV] [RFC] switch expression
From: php@manuelcanga.dev (Manuel Canga)

Hi, internals,


 ---- En mi=C3=A9, 25 mar 2020 17:21:29 +0100 Rowan Tommins <rowan.collins@=
gmail.com> escribi=C3=B3 ----
 > On Wed, 25 Mar 2020 at 15:29, Ilija Tovilo <ilija.tovilo@me.com> wrote:
 >=20
 > > I don't think this would add any significant benefit over:
 > >
 > > ```php
 > > $x =3D true switch {
 > >     $x  !=3D=3D null && $x < 5 =3D> ...
 > > }
 > > ```
 > >
 >=20
 >=20
 > The problem with that is that it requires a temporary variable to be
 > switched on. If I want to switch on, say, a method call, I can write thi=
s
 > for equality:
 >=20
 > $result =3D $this->foo($bar) switch {
 >     1 =3D> 'hello',
 >     2 =3D> 'hi',
 >     3 =3D> 'goodbye'
 > };

In this case, you can also do:

$result =3D  [
    1 =3D> 'hello',
    2 =3D> 'hi',
    3 =3D> 'goodbye'
 ][$this->foo($bar)];

With syntax very similar to proposed switch but this is using array.

Regards
 --
Manuel Canga