DevShed continues their look at the creation of an invoicing system today with this new tutorial, "Client Management for a PHP Invoicing System", part 3.

What's an invoicing system that can't manage the data for the clients you're invoicing? This article, the third of four parts, shows how to make managing your clients easy. This part of the system allows you to view a full list of client names, and add, update or remove clients from your database.

They build on the foundations in part one and part two to now create a client management section of the tool. They give you the table structure they use and show you (including the code/interface) how to remove, update, and add new clients to the database.