DevShed has posted the last part in their look at the creation of an invoicing system to help you manage your clients today. This time, they focus on the management of users of the system (not the clients to invoice, that was this part).

In this fourth and final article covering the creation of a PHP invoicing system, we're going to put together the user management section. In this section we will be able to view all available users and do all the associated things like deleting or updating user details. We are also going to be able to add new users.

They start with grabbing the information of the current users of the system and listing them out. This allows simple modification and deletion of any of the users on the list. They give the code (and screenshots) for the user modification screen and show you how to set up an email reminder that sends out to the clients when a bill hasn't been paid.

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.

DevShed is continuing their series on working with an invoicing system in PHP with this second part, a look at the actual invoicing system they created the login for previously.

If you're running a business in which you're invoicing clients, you need some way to keep track of which invoices have gone out and which clients have paid. In this second article of a four-part series that covers the creation of a PHP invoicing system, we create the parts that deal with this kind of invoice management.

First off, they build out the select to pull out the invoice information and create the page to display the results on. They move to the other side of things, and create the form to set up an invoice, outputting it in a PDF format. To make it easier to see which of the invoices are unpaid, they also create a small section at the top of the list. And, last but not least by any means, they show you how to enter in a brand new invoice record into your database using the FCKeditor to make entering the actual contents of the invoice simple.