<?php

declare(strict_types=1);

final class Arr
{
    /**
     * Extract the specified keys from the given array.
     *
     * @param  array<array-key, mixed>  $array
     * @param  array<int, array-key>  $keys
     * @return array<array-key, mixed>
     */
    public static function only(array $array, array $keys): array
    {
        $result = [];

        foreach ($keys as $key) {
            if (array_key_exists($key, $array)) {
                $result[$key] = $array[$key];
            }
        }

        return $result;
    }
}