If you're using the Zend Framework for Web application development, then it's trivial to integrate Twitter account updates into your site workflow thanks to the native Zend_Service_Twitter component. In this six-minute screencast, Jason Gilmore introduces you to this great component, showing you how to carry out several of these tasks.
http://www.developer.com/lang/php/article.php/3895216/Video-Connecting-to-Twitter-Using-the-Zend-Framework.htm