Bitrix how to display $APPLICATION->GetProperty?

Question

1C-Bitrix

$APPLICATION->GetProperty prints false, and $APPLICATION->ShowProperty prints what it needs because it's deferred. How to get all the same this data without outputting?

Answer 1

If at the time of the call this property is not set, then there is no way to get it. Here the essence must be understood. YOU want to get a value that is not yet set in any way and it is not known what it will be.
If you do at the very beginning of header.php then it will not be false, but value1 . But! Let's say you use it, but add it in the footer as a result, it turns out that you are working with the wrong value. Because ShowProperty will show value2 and you have "already" processed value1 So you better be wondering why. Why are you doing it? Perhaps you are just going the wrong way.
$APPLICATION->SetProperty('MyProp','value1');
$APPLICATION->SetProperty('MyProp','value2');