This was just an exercise following this article:

http://phpir.com/spelling-correction

Details at:

http://neminis.org/blog/research/text-mining/spelling-correction-with-soundex

Update June 2020 The links above now point to Web Archive versions of the pages, since the original websites no longer exist. If those should break in the future, there's a copy of the posts in the blogs directory here in this repo. They are in the Safari Web Archive format.