Re: [RFC] Improve language coherence for the behaviour of offsets and containers

On Thu, Jul 4, 2024, at 15:52, Gina P. Banyard wrote: > Hello internals, > > I would like to formally open the discussion on an RFC I've been working on for the past > year: > https://wiki.php.net/rfc/container-offset-behaviour > > As DokuWiki is a bit of a faff at times, the Markdown sources are available on GitHub: > > https://github.com/Girgias/php-rfcs/blob/master/container-offset-behaviour.md > > The implementation is basically done, other than some mysterious JIT issues that I haven't > been able to pinpoint yet. > > > Best regards, > > Gina P. Banyard > I apparently was sitting on a draft in this thread: Hey Gina, Is there potentially a 12th type of operation? It is implied multiple times, but not spelled out: "offset exists" (i.e., "array_key_exists()" for arrays). The recent discussion on pattern matching makes it seem like there is potentially a huge difference between "an offset that exists" vs. "an offset with no value"; whether or not that is the case, I believe it is an operation on a container? Maybe. I believe you are the subject-matter-expert on this, by this point, for sure; so you would know. In any case, why or why wouldn't it be considered an operation? — Rob