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Date: Fri, 4 Jul 2025 10:38:36 +0300
Message-ID: <CAAwdEzAsZH2PLLOkD+dibagbiO4joptwgYf01ZubRFwg7hyuJA@mail.gmail.com>
Subject: Re: [PHP-DEV] [RFC] Deprecations for PHP 8.5
To: "Gina P. Banyard" <internals@gpb.moe>
Cc: PHP internals <internals@lists.php.net>
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From: drealecs@gmail.com (=?UTF-8?Q?Alexandru_P=C4=83tr=C4=83nescu?=)

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On Wed, Jul 2, 2025 at 11:00=E2=80=AFPM Gina P. Banyard <internals@gpb.moe>=
 wrote:

> Hello internals,
>
> It is this time of year again where we proposed a list of deprecations to
> add in PHP 8.5:
>
> https://wiki.php.net/rfc/deprecations_php_8_5
>


On the topic of deprecating `__construct()` in interfaces:

I'm thinking about constructors usually like this:
They are functions that are invoked statically (using the `new` keyword) on
the class before the object is created, and they execute on instance level,
after the object is created.

They are called as static methods, and they are very similar to static
factory methods, and for better or worse, static methods are supported in
interfaces.

So, in this sense, I think the pattern of defining a constructor in an
interface is useful.
This way, a factory that receives a class name implementing a specific
interface that defines a constructor will be able to accurately instantiate
that class in a simple way.

One could also argue that the deprecation could be solved easily by
replacing the constructor in the interface with a static factory method.
I think we should talk more on this, and I see that Ilija also touched on
it in his reply while I was drafting mine, with even more details.

Generally, I think that's what would be good for each deprecation, to have
a clear way of solving it noted in the RFC.

--=20
Alex

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<div dir=3D"ltr"><div dir=3D"ltr"><div dir=3D"ltr"><br></div><div class=3D"=
gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Jul 2, 2025 at 1=
1:00=E2=80=AFPM Gina P. Banyard &lt;internals@gpb.moe&gt; wrote:<br></div><=
blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-l=
eft:1px solid rgb(204,204,204);padding-left:1ex">Hello internals,<br>
<br>
It is this time of year again where we proposed a list of deprecations to a=
dd in PHP 8.5:<br>
<br>
<a href=3D"https://wiki.php.net/rfc/deprecations_php_8_5" rel=3D"noreferrer=
" target=3D"_blank" class=3D"keychainify-checked">https://wiki.php.net/rfc/=
deprecations_php_8_5</a><br>=C2=A0</blockquote><div><br></div><div>On the t=
opic of deprecating `__construct()` in interfaces:</div><div><br></div><div=
>I&#39;m thinking about constructors usually like this:</div><div>They are =
functions that are invoked statically (using the `new` keyword) on the clas=
s before the object is created, and they execute=C2=A0on instance level, af=
ter the object is created.</div><div><br></div><div>They are called as stat=
ic methods, and they are very similar to static factory=C2=A0methods, and f=
or better or worse, static methods are supported in interfaces.</div><div><=
br></div><div>So, in this sense, I think the pattern of defining a construc=
tor in an interface is useful.</div><div>This way, a factory that receives =
a class name implementing a specific interface that defines a constructor w=
ill be able to accurately instantiate that class in a simple way.</div><div=
><br></div><div>One could also argue that the deprecation could be solved e=
asily by replacing the constructor in the interface with a static factory m=
ethod.</div><div>I think we should talk more on this, and I see that Ilija =
also touched on it in his reply while I was drafting mine, with even more d=
etails.</div><div><br></div><div>Generally, I think that&#39;s what would b=
e good for each deprecation, to have a clear way of solving it noted in the=
 RFC.</div><div><br></div><div>--=C2=A0</div><div>Alex</div><div><br></div>=
</div></div>
</div>

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