Kevin Waterson has posted a new tutorial (a very comprehensive one) seeking to make introductions between a developer new to PHP and the MySQL abilities the language has.
This tutorial is aimed at those new to PHP and MySQL. The object of this tutorials is to show by way of example how to use php to CREATE a database, how to CREATE a table, how to INSERT data into a database, and how to SELECT that data and display it on a web page.
The tutorial doesn't get into working with forms and the data submitted in them, but it does give a great overview of basic SQL commands, pushing data into tables and some other simple functions (loading a CSV file, preventing SQL injection and getting the last inserted ID).