Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:113735
Date: Wed, 24 Mar 2021 10:37:54 +0100
To: internals@lists.php.net
Message-ID: <20210324103754.2551c075@mcmic-probook.opensides.be>
In-Reply-To: <CAOWwgpkWMy6VyEPXTsuLUsmSTY1tmmCTqg3HmB6r_uBzFEv=Lg@mail.gmail.com>
References: <CAF+90c_8Z389ZA2725QDT0bx8sTfaeh4jXRs02E6GZy83pXkVg@mail.gmail.com>
	<CAOWwgpkWMy6VyEPXTsuLUsmSTY1tmmCTqg3HmB6r_uBzFEv=Lg@mail.gmail.com>
Organization: FusionDirectory
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Subject: Re: [PHP-DEV] [RFC] Phasing out Serializable
From: come.chilliet@fusiondirectory.org (=?UTF-8?B?Q8O0bWU=?= Chilliet)

Le Tue, 23 Mar 2021 17:01:40 +0100,
Nicolas Grekas <nicolas.grekas+php@gmail.com> a =C3=A9crit :
> Picking up a loose thread:
> > https://wiki.php.net/rfc/custom_object_serialization introduced a
> > replacement for Serializable in PHP 7.4, so it's time to think about
> > deprecating and removing the old mechanism:
> >
> > https://wiki.php.net/rfc/phase_out_serializable
> >
> > This RFC follows a rather conversative approach. In PHP 8.1 there will =
be a
> > deprecation warning if Serializable is implemented without also
> > implementing __serialize() and __unserialize(). In PHP 9.0, support for
> > Serializable is dropped internally, and only the interface retained. In=
 PHP
> > 10.0 the interface is dropped as well.
> > =20

It is not clear neither in https://wiki.php.net/rfc/custom_object_serializa=
tion
 nor in the documentation if it is possible to call parent::__serialize() to
 only add a few fields to serialization.

Is this legal/correct/useful:

public __serialize ( ) : array
{
  $data =3D parent::__serialize();
  $data['specialField'] =3D $data['special']->complicatedStuff();
  unset($data['special']);
  return $data;
}

public __unserialize ( array $data ) : void
{
  $data['special'] =3D new SpecialComplicatedThing($data['specialField']);
  unset($data['specialField']);
  parent::__unserialize($data);
}

(And as I understand it, it means declaring __unserialize to do something a=
fter
parent::__unserialize() would be the same as declaring __wakeup?)