publish.php

См. документацию.

<?php
namespace Bitrix\Landing\Update\Site;
 
use Bitrix\Landing\Rights;
use Bitrix\Landing\Site;
use Bitrix\Main\Config\Option;
use Bitrix\Main\Update\Stepper;
 
class Publish extends Stepper
{
    public const SITE_LIMIT  = 5;
 
    protected static $moduleId = 'landing';

    public function execute(array &$result): bool
    {
        Rights::setGlobalOff();
        if (!isset($result['steps']))
        {
            $result['steps'] = 0;
        }
        $result['steps']++;
 
        $publishedIds = [];
        $ids = [];
        $stringIds = Option::get('landing', 'unpublished_ids', '');
        if ($stringIds !== '')
        {
            $ids = explode(',', $stringIds);
            $neededIds = array_slice($ids, 0, self::SITE_LIMIT);
            foreach ($neededIds as $id)
            {
                Site::publication($id);
                $publishedIds[] = $id;
            }
        }
        Rights::setGlobalOn();
        if ($publishedIds === $ids)
        {
            Option::delete('landing', array('name' => 'unpublished_ids'));
            return false;
        }
        $ids = array_diff($ids, $publishedIds);
        $stringIds = implode(',', $ids);
 
        Option::set('landing', 'unpublished_ids',  $stringIds);
        return true;
    }
}