array_reduce.php

<?php

class ArrayReduce
{
    /**
     * @template Value
     * @template Key
     * @template Result
     * @param iterable<Key, Value> $toReduce
     * @param callable(ArrayReduceResult<Result>, Value $item, Key $key): ArrayReduceResult<Result> $checkMethod
     * @param mixed $initial
     * @return mixed
     */
    public function execute(iterable $toReduce, callable $checkMethod, mixed $initial = null): mixed
    {
        $reduceResult = new ArrayReduceResult($initial);
        foreach ($toReduce as $key => $value) {
            $reduceResult = $checkMethod($reduceResult, $value, $key);
            if (!$reduceResult->continue) {
                break;
            }
        }
        return $reduceResult->result;
    }
}

/**
 * @template Result
 */
class ArrayReduceResult
{
    public bool $continue;

    /**
     * @param Result|null $result
     */
    public function __construct(public mixed $result) {}
}