How to display the value of an additional property of an information system element using php?

Question

CMS

HoscCMS 5.
I try like this:

$InformationSystem = new InformationSystem();
 $information_propertys_items_id = 99;
 $row = $InformationSystem->GetInformationItemsPropertyValue($information_propertys_items_id);
 print_r ($row);

Alas, it's empty.
I remember, somehow, I used to output by xml tag, but it was a long time ago and now I don’t remember how it’s done.

Answer 1

Maybe this will help:
https://www.hostcms.ru/api6/class-Informationssyste...