PHP Tutorials Examples Introduction to PHP and MySQL
http://www.phpro.org/tutorials/Introduction-to-PHP-and-MySQL.html
Why you Should be using PHP’s PDO for Database Access | Nettuts+
http://net.tutsplus.com/tutorials/php/why-you-should-be-using-phps-pdo-for-database-access/

Many PHP programmers learned how to access databases by using either the mysql or mysqli extensions. Since PHP 5.1, there’s been a better way. PHP Data Objects (PDO) provide methods for prepared statements and working with objects that will make you far more productive!

This is an eazy to learn tutorial for PDO.

Many PHP programmers learned how to access databases by using either the mysql or mysqli extensions. Since PHP 5.1, there's been a better way. PHP Data Objects

ripe for SQL Injection!