The document defines the configuration for a web application that uses basic authentication. It maps the ShowDate servlet to the /SDate URL pattern. It also specifies that all resources require the "admin" role and uses HTTP basic authentication with the "UserDatabaseRealm" realm.
This document summarizes some new features in PHP 5.4:
- Array syntax can now be written more concisely using square brackets instead of array functions.
- PHP 5.4 includes a built-in web server for development purposes, allowing PHP scripts to be run without Apache.
- Traits allow sharing of methods across classes to reduce code duplication, similar to mixins in Ruby.
- Closures now support accessing properties of the enclosing class scope via $this.