http://www.codular.com/ http://www.codular.com/ has some good examples. Further, anything from the symphony framework and the composer stuff is quite good. See

http://www.codular.com/ http://www.codular.com/ has some good examples. Further, anything from the symphony framework and the composer stuff is quite good. See https://github.com/php-fig/fig-standards https://github.com/php-fig/fig-standards for some of the good work that is happening.