I am very sorry for asking this but i totally do not understand how to set values of checbox using API.
I have checbox field on my page with name "order_status".
So i've tried few ways to make it checked but it still doesn't work:
$userPage->order_status->value = 1;
$userPage->order_status->add(1);
$userPage->order_status->add(true);
Could you please tell me how to do it?