paginator.php

<?php
 
namespace Bitrix\Socialnetwork\Internals\LiveFeed\Counter\Collector;
 
use Traversable;
 
class Paginator implements \IteratorAggregate
{
    private int $limit;
    private int $pages;
    private array $offsets = [];
 
    public function __construct(int $total, int $limit)
    {
        $this->limit = $limit;
        $this->pages = ceil($total / $limit);
        $this->paginate();
    }
 
    public function getIterator(): Traversable
    {
        return new \ArrayIterator($this->offsets);
    }
 
    private function paginate(): void
    {
        for ($page = 1; $page <= $this->pages; $page++)
        {
            $this->offsets[] = ($page - 1) * $this->limit;
        }
    }
}