Re: [RFC] CSV Extension (ext/csv)

On Tue, Nov 10, 2026 at 5:31 PM Juliette Reinders Folmer < php-internals_nospam@adviesenzo.nl> wrote: > On 10-11-2026 14:44, Damian Jóźwiak wrote: > > Hi Ignace, > > Thanks for the suggestion. I agree that a dedicated interface for > converting objects into CSV fields could be useful. > > I'd prefer to avoid the term "serialization", as I've deliberately used > "conversion" throughout the RFC. Something like Csv\FieldConvertible with > a toCsvField() method would be more consistent with that terminology. > > There is one thing I'd like to consider before introducing it, though. > > The last item in the RFC's Future Scope section already mentions the > possibility of an object-oriented API. I think a dedicated conversion > interface would fit quite naturally into such an API. > > With the current function-based API, callers can already explicitly invoke > their own conversion methods before passing values to the CSV functions: > > Csv\array_to_row([ > $object->toCsvField(), > ]); > > This provides explicit control over the CSV representation without > requiring a new interface in the initial API. > > So the question, in my view, is whether we really need to introduce a > dedicated interface now, or whether it would be better to revisit it > alongside the potential object-oriented API, where its role and integration > could be considered more broadly. > > I'm not opposed to the interface itself. I'd just prefer to avoid > expanding the initial scope unless there's a compelling use case that the > existing functions cannot reasonably accommodate. > > Best regards, > Damian > > > Damian, > > Please respect the mailing list rules [1] and always reply with a > bottom-post. This conversation as it is currently, is impossible to follow > with Ignace (correctly) bottom posting and you consistently incorrectly > top-posting. > > Smile, > Juliette > > 1: > https://github.com/php/php-src/blob/master/docs/mailinglist-rules.md > > Sorry about that, Juliette. I'll make sure to bottom-post from now on.