The great thing about this pipe operator is that it accepts any callable expression. I’m writing a library to make these array and string functions more expressive.

For example, in php 8.5 you’ll be able to do:

[1,1,2,3,2] |> unique

And then define “unique” as a constant with a callback assigned to it, roughly like:

const unique = static fn(array $array) : array => array_unique($array);

Much better.