Install DokuWiki on Windows
There are many free WAMP solutions available which will quickly and easily install Apache with PHP (and other tools).
Here is a select choice of WAMP servers (there are many others):
If you only want DokuWiki to work on your local PC without installing anything else or needing to learn how web servers work, the easiest solution is to use a pre-configured package including DokuWiki, PHP and a small server.
The following such one-click solutions are available: