I am looking for some really easy to install and use documentation software for the web using PHP. I want to add help docs to an application, but would like to be able to just add simple titles and content and have it indexed automatically for our users. I have checked out Sourceforge and Hotscripts without much luck.
Has anyone had experience with documentation / knowledge base software?
I would ideally prefer links to software you have actually used and recommend, since I have searched around plenty and found nothing that jumps out at me.