PHPBuilder.com continues their look at preventing SQL injections in your PHP scripts with this new tutorial, the third part of the excerpts from the APress book Pro PHP Security.

They pick up where they left off last time with the creation of an abstraction layer for your application to act as a go-between and filter out possible bad data. They give examples of how to use it to secure a new application, use abstraction libraries like the PearDB functionality, and how to test your application's protection.