OpenID PHP Integration

I think you know the use of OpenID. Else go here and learn

http://en.wikipedia.org/wiki/OpenID
http://openid.net/what/
http://openiddirectory.com/

In a nutshell, the OpenID technology makes life simpler by having only one username and password to remember – yahoo OpenID tour

Here the php source code for integrating your site with OpenID. If you have a website which has user login / signup options , you can also add openID authentication so that user can login into your site with there OpenID

php-openid-2.0.zip

OpenID Integration PHP

(tested in windows. read the README file before installing. set $store_path = “/tmp” to a directory according to OS)

Visit this url: http://openidenabled.com/ for other languages (phython, ruby etc)