Re: [RFC] Allow Reassignment of Promoted Readonly Properties in Constructor

On Thu, Jan 22, 2026 at 4:39 PM Nicolas Grekas <nicolas.grekas+php@gmail.com> wrote: > > Here is a new RFC for you to consider: > https://wiki.php.net/rfc/promoted_readonly_constructor_reassign > Thank you very much for the RFC. I really enjoyed reading it; clearly explained, easy to read, and with a good focus on laying out how everything works and considering edge cases. Especially the working examples around "Child Classes Can Reassign Parent Properties" have been great to read. It's delightful that you were able to provide a PoC implementation for me to check and answer the remaining questions I had. Great to see more people being able to modify php-src to this scope. I think this makes sense, aligns behavior with clone, and patches up one edge case with using CPP over regular properties, easing refactoring. While this is not a problem I, personally, ran into, it makes sense to me, and given any upcoming insights in the discussion, I'm in favor of it. Thank you, Volker