[PHP-DEV] array_reject() as counterpart of array_filter()

[David Rodrigues]

Currently we have array_filter(), but sometimes we need an inverse function
like array_reject().

array_reject('is_null', [ 1, 2, null, 3 ]); // [ 1, 2, 3 ]

It could be easily implemented with:

function array_reverse($fn, $arr) { return array_filter(fn($item) =>
!$fn($item), $arr); }

Anyway, I think that It should be implemented by core, once that we have
array_filter().