Sort.php

См. документацию.

<?php
 
declare(strict_types=1);
 
namespace Bitrix\Main\Provider\Params;
 
abstract class Sort implements SortInterface
{
    public function __construct(protected array $sort = [])
    {
    }
 
    public function prepareSort(): array
    {
        return array_intersect_key($this->sort, array_flip($this->getAllowedFields()));
    }

    abstract protected function getAllowedFields(): array;
}