iterable_group()

Complexity

Conditions	4
Paths	6

Size

Total Lines	21
Code Lines	11

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	12
CRAP Score	4

Importance

Changes

0

<?php
function iterable_group(iterable $iterable, callable $grouping): \Generator

Function Improved\iterable_group() has parameter $iterable with no value type specified in iterable type iterable.

Function Improved\iterable_group() return type has no value type specified in iterable type Generator.

{
    $groups = [];
    $values = [];

    foreach ($iterable as $key => $value) {
        $group = call_user_func($grouping, $value, $key);

        $index = array_search($group, $groups, true);

        if ($index === false) {
            $index = array_push($groups, $group) - 1;
        }

        $values[$index][] = $value;
    }

    unset($iterable);

    foreach ($groups as $index => $group) {
        yield $group => $values[$index];
    }