The webmonkey one got me started, and the official php manual (its a 800 odd page download in pdf format from www.php.net I use, and Vincent will complain if ya don't know it off by heard before posting a message 🙂)
I also use the David Medinets book PHP3, Programming Browser Based Applications, its expensive, but quite a useful resource as covers a lot of areas, though not in a lot of detail.
The webmonkey URL is...
http://hotwired.lycos.com/webmonkey/databases/tutorials/tutorial4.html
Hope that helps, have fun 🙂
P.S. You need a webhost supporting PHP to use this of course... and preflably some SQL language if you want to use the database capabilities, no free sites support this to my knowledge.