Link: PHP 5.4 Traits - Horizontal Usability

Aug 24, 2011   #php 5.4  #traits 

PHP 5.4 includes a new feature called traits which allow us to do something that seems an awful lot like multiple inheritance at first glance. Traits allow PHP classes to be “extended” horizontally, rather than vertically.

Great explanation and example of traits. PHP 5.4 is looking to be a nice release.