> > > Pipe and compose are importantly different operations. I've had > user-space implementations of both available for years in crell/fp: > https://github.com/Crell/fp/blob/master/src/composition.php
> I'd love to have a compose operator natively in PHP, too. The RFC for > that is already written, just needs code. I hope to formally propose it > soon: https://wiki.php.net/rfc/function-composition Hmm, that's great, but looks like we are missing something. 1. Would you propose the RFC to 8.5? I think it should be proposed with the new pipe operator any way 2. RFC early feedback There is no big difference in DX with the new operator "+" for closures: - + operator may be overridden in some extensions and it also may implement __invoke. What's expected behavior? It will be totally unclear - code examples from the rfc: https://3v4l.org/n7UB0 vs https://3v4l.org/tOlft the first approach is better for me because it may be batch-processed / combined / filtered / modified easily. So taking my first message there are not so many changes: https://3v4l.org/ncpEE Just try to imagine how to work with the composition and how it perfectly works now: https://3v4l.org/ArK2O By the way, RFC describes userland "compose" function performance problems, but there is no suggestion to make it natively, why so? -- Best regards, Dmitrii Derepko. @xepozz
