With your new knowledge you should be able to understand most of
the manual and also the various example scripts available in the
example archives. You can also find other examples on the php.net
websites in the links section: http://www.php.net/links.php.
To view various slide presentations that show more of what PHP can do,
see the PHP Conference Material Sites:
http://conf.php.net/ and http://talks.php.net/
