awesome-php.md

@@ -97,6 +97,7 @@ A list of amazingly awesome PHP libraries that you should consider using (and so
 * [Monga](https://github.com/FrenkyNet/Monga) - A MongoDB abstraction library.
 * [Predis](https://github.com/nrk/predis) - A feature complete Redis library.
 * [Sabre VObject](https://github.com/evert/sabre-vobject) - A library for parsing VCard and iCalendar objects.
+* [OAuth2](https://github.com/lncd/OAuth2) - An OAuth2 authentication server, resource server and client library.
 
 # Official APIs