How to add page number to description?

Question

1C-Bitrix

The Bitrix forum has a code that is inserted into init.php, how to add a page number to the title in the presence of pagination

AddEventHandler('main', 'OnEpilog', array('CMainHandlers', 'OnEpilogHandler'));
class CMainHandlers
{
    public static function OnEpilogHandler()
    {
        if (isset($_GET['PAGEN_1']) && intval($_GET['PAGEN_1']) > 0) {
            $title = $GLOBALS['APPLICATION']->GetTitle();
            $GLOBALS['APPLICATION']->SetPageProperty('title', $title . ' - cтраница ' . intval($_GET['PAGEN_1']));
        }
    }
}

I tried to supplement it so that the page number is also added to the description:

AddEventHandler('main', 'OnEpilog', array('CMainHandlers', 'OnEpilogHandler'));
class CMainHandlers
{
    public static function OnEpilogHandler()
    {
        if (isset($_GET['PAGEN_1']) && intval($_GET['PAGEN_1']) > 0) {
            $title = $GLOBALS['APPLICATION']->GetTitle();
            $GLOBALS['APPLICATION']->SetPageProperty('title', $title . ' - cтраница ' . intval($_GET['PAGEN_1']));
            $description = $GLOBALS['APPLICATION']->GetDescription();
            $GLOBALS['APPLICATION']->SetPageProperty('description', $description . ' - cтраница ' . intval($_GET['PAGEN_1']));
        }
    }
}

however, does not work. the page number is added to the title, not to the description. How to fix?

Answer 1

$description = $APPLICATION->GetProperty("description");