Board Thread:Support Requests - Getting Technical/@comment-25956839-20170429133703/@comment-2200849-20170429151248

Hey, I would strongly advise against using the Arrays extension. The extension itself (as well as all similar extensions) are an ugly hack which treat wikitext as if it were a programming language, and features built using it will always suffer from performance problems, and be hard to maintain and update, especially when it comes to propagating updates to pages.

There is currently no easy way to accomplish this in MediaWiki. As a temporary solution, you can consider using a Lua template, which would be more performant than the Arrays extension. However, there are some ideas and experiments floating around aimed at improving this situation, so you should definitely send in this information since it will be welcomed. :)