2021-06-07 21:00 GMT+02:00, Larry Garfield <la...@garfieldtech.com>:
> Hi folks. Me again.
>
> A year ago, I posted an RFC for a pipe operator, |>, aka function
> concatenation. At the time, the main thrust of the feedback was "cool,
> like, but we need partial function application first so that the syntax for
> callables isn't so crappy."
>
> The PFA RFC is winding down now and is looking quite good, so it's time to
> revisit pipes.
>
> https://wiki.php.net/rfc/pipe-operator-v2
>
> Nothing radical has changed in the proposal since last year. I have updated
> it against the latest master. I also updated the RFC to use more examples
> that assume PFA, as the result is legit much nicer. i also tested it
> locally with a combined partials-and-pipes branch to make sure they play
> nicely together, and they do. (Yay!) Assuming PFA passes I will include
> those tests in the pipes branch before this one goes to a vote.
>
> --
> Larry Garfield
> la...@garfieldtech.com
>
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Hi ho,
Has it been discussed the difference between the pipe operator and a
simple pipe function? Something like
function pipe() {
$args = func_get_args();
$result = $args[0];
$functions = array_slice($args, 1);
foreach ($functions as $function) {
$result = $function($result);
}
return $result;
}
Usage (ignoring the pesky undefined constant warnings ><):
$result = pipe(
"Hello world",
htmlentities,
str_split,
fn ($x) => array_map(strtoupper, $x),
fn ($x) => array_filter($x, fn ($v) => $v !== 'O')
);
There's also pipe operator with object, but that's obviously too
verbose compared to the operator
(https://github.com/sebastiaanluca/php-pipe-operator).
Olle
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