The second symfony component has gone live. It is the Dependency Injection Monkey. For me as a Java guy, who is used to Spring or Guice it is a relief to see that finally there is a compact and great PHP DI container available. If you never have heard about dependency injection (also called Inversion of Control) you should try to understand it. If you have and are developing PHP you should try the symfony dependency injection. Or better If you are on Java, try Spring :-)