Great way to get your feet wet with MySQL and PHP
I currently work as a web developer for an online K-12 homeschooling company. How I started was by creating sites (now small companies) of my own and learning how to create dynamic sites through reading books and online resources. One of the best books I used to get started was this one. It gives you a simple understanding of how to interact between your DBMS (MySQL) and your script. There is no complicated jargon with this book. Larry Ullman goes through a brief introduction to MySQL to start the book, giving some outlines to data structure and relationships then builds on that later in the book to tie in PHP. This is a great book to start with and to build off on, you will learn the basics without being overwhelmed making it easier to build upon.