attribute() returns null, when value is 0 #2
Description
I've been using ACFBentveld/XML which is now archived, but after checking a little, it seems that these packages are identical, so I suppose this error occurs here too (the source of the class where the bug may resonate from is identical).
I have a xml file, which has lines like:
<Category ID="9158" LowPic="http://images.icecat.biz/img/low_pic/9158-2307.jpg" Score="0" Searchable="0" ThumbPic="http://images.icecat.biz/thumbs/CAT9158.jpg" UNCATID="49141596" Visible="0" Updated="2021-08-09 08:56:01">
...
</Category>
In my code I'm using $element->attribute('Searchable') (where $element represents a <Category>).
When the value is 1, I receive "1" as value. But when the value is 0, it returns null, when it should return "0". The same happens also with the "Visible" attribute.
I temporarily fixed the results in my code by using $element->attribute('Searchable', 0), but that doesn't fix the bug in the package. While $element->hasAttribute('Searchable") returns the correct result, attribute() returns null as if the attribute wouldn't be there.