More Information

http://talks.php.net/

http://cvs.php.net/cvs.php/ZendEngine2/ZEND_CHANGES?login=2

http://cvs.php.net/cvs.php/ZendEngine2/OBJECTS2_HOWTO?login=2

http://www.php.net/ref.sqlite

http://www.php.net/ref.simplexml

http://marcus-boerger.de/php/ext/spl/