Uma is a user management and authentication system written in PHP. It's completely object-oriented, supports MySQL and is flexible, powerful and easy to implement. Uma allows you to have a single database managing access to an unlimited number of web sites, applications and users. Uma is actively developed and paid professional support is available if you need help. Learn more about support here.
If you have several sites, you can have one Uma database and one Uma code installation to service all of your sites. You manage all of your users and sites through one administrative tool, and can grant users access to multiple sites giving the user a single username and password.
