Re: RFC karma request: array_partition()

On 2026-10-24 12:16, mickmackusa wrote:

Hi Ayoub, - It feels unintuitive that true callback outcomes map to the 0 key and false outcomes map to 1. I'm also in support, and this would have been my only observation: my partition functions also map passes and rejects to true and false respectively (so the result is a mapping from booleans to array values).

If that mapping were retained, it could be documented in code as [true => $passed, false => $rejected] = array_partition(...); or $adult_tested = array_partition(...); $adults = $adult_tested[true]; $minors = $adult_tested[false]; I would also prefer the callback parameter to be named $predicate, to emphasise that it is supposed to return a boolean. $callback doesn't convey as much about what it's for - the same name is used, for example, in usort(), where it's a comparator. It didn't matter until named parameters became a thing.