Kraken\Promise\Partial\PromiseTrait::some PHP Method

    public static function some($promisesOrValues, $howMany)
    {
        $cancellationQueue = new CancellationQueue();
        return new Promise(function ($resolve, $reject, $cancel) use($promisesOrValues, $howMany, $cancellationQueue) {
            self::doResolve($promisesOrValues)->done(function ($array) use($resolve, $reject, $cancel, $howMany, $cancellationQueue) {
                if (!is_array($array) || $howMany < 1) {
                    $resolve([]);
                    return;
                }
                $len = count($array);
                if ($len < $howMany) {
                    throw new UnderflowException(sprintf('Input array must contain at least %d items but contains only %s items.', $howMany, $len));
                }
                $toResolve = $howMany;
                $toReject = $len - $toResolve + 1;
                $values = [];
                $reasons = [];
                foreach ($array as $i => $promiseOrValue) {
                    $fulfiller = function ($val) use($i, &$values, &$toResolve, $toReject, $resolve, $cancellationQueue) {
                        if ($toResolve < 1 || $toReject < 1) {
                            return;
                        }
                        $values[$i] = $val;
                        if (0 === --$toResolve) {
                            $resolve($values);
                            $cancellationQueue();
                        }
                    };
                    $rejecter = function ($reason) use($i, &$reasons, &$toReject, $toResolve, $reject, $cancellationQueue) {
                        if ($toResolve < 1 || $toReject < 1) {
                            return;
                        }
                        $reasons[$i] = $reason;
                        if (0 === --$toReject) {
                            $reject($reasons);
                            $cancellationQueue();
                        }
                    };
                    $canceller = $cancel;
                    $cancellationQueue->enqueue($promiseOrValue);
                    self::doResolve($promiseOrValue)->done($fulfiller, $rejecter, $canceller);
                }
            }, $reject, $cancel);
        }, $cancellationQueue);
    }