On Mon, Jun 2, 2025, at 3:41 PM, Dmitry Derepko wrote: > Hi Larry! > > > > It's been a long, long way to get this feature, awesome work. > > > > Have you considered adding a compose function that does the same thing > but in the classic PHP function style? > > > > There's not much difference between the new style: > > > > > > $processor = fn ($data) => htmlentities($data) > > |> str_split(...), > > |> fn($x) => array_map(strtoupper(...), $x), > > |> fn($x) => array_filter($x, fn($v) => $v != 'O’); > > > > and the old one: > > > > $processor = compose( > > htmlentities(...), > > str_split(...), > > fn ($x) => array_map(strtoupper(...), $x), > > fn ($x) => array_filter($x, fn ($v) => $v != 'O'), > > ); > > > > But the classic looks better when you create real pipes. > > > > I’ve created examples with comparison. > > > > https://3v4l.org/jY0Vg > > https://3v4l.org/87Sj2 > > https://3v4l.org/4EE6b > > > > > > New syntax just makes code shorter, but the compose function still have > benefits: > > - it will be able to add a polyfill for older versions > > - it will be possible to write the first function without passing the > first argument ($data in the "fn ($data) => htmlentities($data)”) > > - it will be possible to re-use the compose function along with the new > operator $data |> compose(…$functions)
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 --Larry Garfield
