Thread:Project:Support desk/Class WikiPage, Article, Title???/reply

https://www.mediawiki.org/wiki/Manual:WikiPage.php https://www.mediawiki.org/wiki/Manual:Article.php https://www.mediawiki.org/wiki/Manual:Title.php

Maybe the diagrams on https://doc.wikimedia.org/mediawiki-core/master/php/html/classWikiPage.html also help?