kodedphp / stdlib

<?php

/*

 * This file is part of the Koded package.

 *

 * (c) Mihail Binev <[email protected]>

 *

 * Please view the LICENSE distributed with this source code

 * for the full copyright and license information.

 */

namespace Koded\Stdlib;

use function array_key_exists;

use function explode;

use function str_replace;

use function str_starts_with;

use function strtolower;

trait ArrayDataFilterTrait

{

    public function filter(

        iterable $data,

        string $prefix,

        bool $lowercase = true,

        bool $trim = true): array

    {

        $filtered = [];

        foreach ($data as $index => $value) {

            if ($trim && '' !== $prefix && str_starts_with($index, $prefix)) {

                $index = str_replace($prefix, '', $index);

            }

            $filtered[$lowercase ? strtolower($index) : $index] = $value;

        }

        return $filtered;

    }

    public function find(string $index, mixed $default = null): mixed

    {

        if (isset($this->data[$index])) {

            return $this->data[$index];

        }

        $data = $this->data;

        foreach (explode('.', $index) as $token) {

            if (false === array_key_exists($token, $data)) {

                return $default;

            }

            $data =& $data[$token];

        }

        return $data;

    }

    public function extract(array $indexes): array

    {

        $found = [];

        foreach ($indexes as $index) {

            $found[$index] = $this->data[$index] ?? null;

        }

        return $found;

    }

}