Newsgroups: php.internals
Path: news.php.net
Xref: news.php.net php.internals:128673
Date: Thu, 11 Sep 2025 11:39:00 +0200 (CEST)
To: internals@lists.php.net, Sebastian Bergmann <sebastian@php.net>
Message-ID: <299875824.845635.1757583540813@email.ionos.de>
In-Reply-To: <dddf91b3-8dda-452b-b10c-809c92b11e1b@php.net>
References: <CAOWwgpk1Z_bns=Z55TqpYOBXvBGpurMfjTGPSgQ6Uf5QXfLOjg@mail.gmail.com>
 <CAEKnhAGq9i9347oYkSsuAjQXKmAPittYZh+964QXwsSVBCKuKA@mail.gmail.com>
 <dddf91b3-8dda-452b-b10c-809c92b11e1b@php.net>
Subject: Re: [PHP-DEV] [RFC] Soft-Deprecate __sleep() and __wakeup()
Precedence: list
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Importance: Normal
UI-OutboundReport: notjunk:1;M01:P0:MO57XMh04g0=;6Xjt82kUo9pkONLJII3ZAvqjrEw
 YRH3O9mKYF+XIFKNCR68Xc4OiITtKof2fAR+08eX3PO81Q56XqA58iin215umLvjXD1Gwqd3E
 WY+G+1Rqf98V39cYMK8lIHy/EI26h24GK3mO2TH6Xx6U9oKJaaCnyHKqi663CboqSQfi7XDod
 PKHRfnr7Mzl9hcIFQ2qakLWHnJIJsqfRzXAwcid06/NHEuhlDVS4CWlJjYebaV0zVt9DUvusr
 AD0qeQEx+9kg4ZMdBKZ8TgrjKI0qYsgVAbg+apZsK2PzLMtsxUGL9qICDhuiOy9/caWTXyoNH
 N3+ev1NMcxZhSMlpx6cALxyMNAnfV11QLQsc0pF2HitOrPjOhjspPJpBaKB6LSs6MhMyS1GkU
 flAv/TmABPqQiLVz8fNHG7YFwMKEbINsTnzk6dsK4qYIQvWVl/FOQkV1CKAyGJRTgpMAr3tkA
 rvIlZYh/+BG0QiTcYxJvNuBKKrUyqduo6HhNI17Df4awCWmiUrxLdCtoaXuTjuT6XLdqgyRUT
 Ls+UfvJlhOyC6WpubuOcE2qD4U5m9FjU0ndX8UgcAJKom85UyE+HuZa1OmjyIHF0Zo8rjsfn2
 a8eUZqyporiQfIb3v8482jX/M0BhSx7flEC4QDVAFvTAiAFIdmFatrai+LEm8Zl2tcAdisijj
 Z+YS/NBs4FdeqYYWLv4iL1FLBZoS9h5/hXD+vVaEjB7b/WVT3WzPrxXH9WBzIjMZn+unvAwva
 5sfsTFrQm21Zzmwct2oAAQnOP6Vix43aw6yPdDglhv/Mb7zzo3n06Fv+QctEYNowtdR+jpRGS
 PhKiCcDWpEPquwVUxWPdAIwSIkB34JBB2bTtO8vaxJKXpL33oHSk5P3Aer/AAY+9M1duRs5HU
 PtWS/z6ajrewgn5PJ0NYouH1fSihlTMfMjFfkYMLkQF/FvLSUVURS6OLINYPvDOet6VUmCv9f
 SzSEzPdjlEttxdW974SIkcNc/3O4qROCJmTEq0nxmxIjI4VDwETw+xwRrfpAypSrUC5/0mC9W
 wxVV+S+j1FUJPtdoEUttfn7oLM3PpL4S5gnP51t3oCwRygj0j8iHFKmiwCiNm/clwbpL/f9ow
 5MZu9HP/tbE2u91uwK8KlAtZK8BXKe7Ko4yl8s2YHt/Z55h+WDYpgu/T+j+zM3/Ygdcsvx4PY
 twYBN4D1yfq80CiR2SSG9PjjWef0/dRr0EhkV2pq13MWIZbyG2C8epo1A6emPALs99Q0JJqcs
 Ut7e7h4f3Z5UCYwzLyfLSU6uVCBVgghSmEmOm0pQXiyrZegc0GumP+SquqQ47IynPQ4QLK4ss
 8p5uDFuW/0haVBKqy4SsQiX8V806OUzp59yUZB07wW6UzUyMwOpczyZiJ+ltxaoP55UeOhtJV
 m8LWjdcRV6K6/I8RatKCoAFgqiIG9/TjBhk+yI7Mzdwq2txTXH2yQbjPBkIKg3p8JIAEweLab
 IDIRQj47k/0erB5yHxNV4ihUnhWc1KKNRGy9jD8onAGrBBcvR00am9V3MhYmfK3H6dgGpEbxk
 dbSm8rltK4XvUH9XbFddIYNpAO6lXbDDuGO+2zKPL4+e9HVpqePHoA4BSCNuwE06JdF13IKz/
 1gWM+IP2haKdgBZtOJXfuGuvVimy8I+BEpZN/YLiOhY1FPcnLZ1Y1q2DXC2/vT4P8CWWjoDE2
 ACggm56a0mE+TLDeyLrzu06wiuQguOJwjkiULMz05Uh8aIYn2tI1pZm7rx5oG/Tx4=
From: mails@thomasbley.de (Thomas Bley)

> Sebastian Bergmann <sebastian@php.net> hat am 11.09.2025 08:33 CEST gesch=
rieben:
>=20
> =20
> Am 10.09.2025 um 15:23 schrieb Jakub Zelenka:
> > If __sleep is used to serialize private properties (not all but just=20
> > some), then those property names are stored in the mangled format=20
> > ("\x00" . self::class . "\x00" prefix). It means to make it compatible =
in=20
> > __serialize, the application has to mangle property names - this can be=
=20
> > done either manually prefixing the name or using=C2=A0get_mangled_objec=
t_vars=20
> > and filter the mangled names. Alternatively it could use=C2=A0__seriali=
ze with=20
> > the new names but then it will need to deal with new and old (mangled)=
=20
> > formats in __unserialize. In any case it means that the users will be=
=20
> > required to deal with the mangled property name and get some understand=
ing=20
> > of mangling.
>=20
> On the off-chance this might be useful for somebody following this thread=
,=20
> this is what the prefixing approach looks like:
>=20
> https://github.com/sebastianbergmann/php-code-coverage/blob/12.3.7/src/Co=
deCoverage.php#L92-L110

This serialize is currently not very optimal. E.g. Pest uses "--coverage-ph=
p" and in my setup SebastianBergmann\CodeCoverage\Report\PHP::process() the=
n consumes gigabytes of ram, >500M on disk and >20s extra time to get the c=
overage report.

Regards
Thomas