OpenID (http://openid.net) is a great way to allow users to log in without having to have an actual username in your application. It is a solution that is widely adopted, and has proven itself on many popular sites (such as Google, Yahoo, MySpace, and AOL).
This recipe shows how to add support for OpenID logins in a transparent way, while still working with a valid Auth implementation.
We should have a working authentication system, so follow the recipe, Setting up a basic authentication system.
We will also need the PHP OpenID Library. Download the latest release from https://github.com/openid/php-openid/downloads and extract the folder named Auth from the downloaded file into your app/vendors folder. You should ...
No credit card required