Horat1us\Yii\Helpers\ArrayHelper::permute()

Complexity

Conditions	3
Paths	2

Size

Total Lines	16
Code Lines	12

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	11
CRAP Score	3

Importance

Changes	1
Bugs	0	Features	0

<?php
    public static function permute($items, $perms = [])
    {
        if (empty($items)) {
            $return = [$perms];
        } else {
            $return = [];
            for ($i = count($items) - 1; $i >= 0; --$i) {
                $newItems = $items;
                $newPerms = $perms;
                list($foo) = array_splice($newItems, $i, 1);
                array_unshift($newPerms, $foo);
                $return = array_merge($return, static::permute($newItems, $newPerms));
            }
        }
        return $return;
    }
}