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Date: Thu, 26 Feb 2026 14:04:41 -0600
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Subject: Re: [PHP-DEV] [RFC] Allow Reassignment of Promoted Readonly Properties in
 Constructor
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From: larry@garfieldtech.com ("Larry Garfield")

On Tue, Feb 24, 2026, at 4:29 PM, Nicolas Grekas wrote:
> Le mar. 24 f=C3=A9vr. 2026 =C3=A0 20:57, Larry Garfield <larry@garfiel=
dtech.com> a =C3=A9crit :
>> On Tue, Feb 24, 2026, at 1:34 PM, Nicolas Grekas wrote:
>>=20
>> >> Otherwise, I'm happy with where this ended up.  Thanks!
>> >>=20
>> >
>> > Thanks for having a look!
>> > Here is the update:=20
>> > https://wiki.php.net/rfc/promoted_readonly_constructor_reassign?do=3D=
diff&rev2%5B0%5D=3D1771797005&rev2%5B1%5D=3D1771961558&difftype=3Dsideby=
side
>> >
>> > Cheers,
>> > Nicolas
>>=20
>> > Property hooks cannot be combined with CPP, so properties must be d=
eclared separately
>>=20
>> This is untrue.  The following code is legal:
>>=20
>> class Point {
>>     public function __construct(
>>         public float $x =3D 0.0 { set =3D> abs($value); },=20
>>         public float $y =3D 0.0 { set =3D> abs($value); },
>>     ) {}
>> }
>>=20
>> The point about readonly is valid, and worth keeping, as is the "affe=
cts all writes" question, but the code above is possible.
>>=20
>
> My bad, I should get used to them more :)
>
> https://wiki.php.net/rfc/promoted_readonly_constructor_reassign?do=3Dd=
iff&rev2%5B0%5D=3D1771961558&rev2%5B1%5D=3D1771972141&difftype=3Dsidebys=
ide

Looks good now.  Thanks. :-)

--Larry Garfield