Board Thread:General Coding Help/@comment-31246436-20160924123340/@comment-25357967-20161005144919

A quick search on MediaWiki.org yielded this extension: Replace Text. If that is not what you were looking for and have decided you'd like to write your own, I suggest you have a look at the Manual:Developing extensions, also on MediaWiki. Be aware that MediaWiki changed the way extensions are written and added in 1.25, so you'll need an older version of that page if you intend to write an extension for use on Fandom.