This is version 2 of my invoicing system. I use it to charge my time for private work I do. The original version started very simply and had more functions added as they were needed. This meant that some of the internal database structure was no longer appropriate so had to be changed. Because of this major change I thought a new version number was appropriate.

I also added a lot of new features, such as the ability to send invoices in more ways, partial payments, cancelled invoices, and several others. There are a few usability issues I still need to sort, so I guess version 2.1 won't be far away!

The system is web based and utilises about 30,000 lines of PHP code, plus the usual HTML, CSS, Javascript, and MySQL. It runs on a Mac pro server in my basement.

I usually write a blog post about once a week. The latest post can be viewed here: Think for Yourself: In the end, everything is just an opinion. Be skeptical, and think for yourself! (posted 2026-04-25 at 21:12:02). Or go to the Home Page of My Blog to choose a post to view.

I do podcasts too! You can listen to my latest podcast, here: OJB's Podcast 2026-04-25 Think For Yourself: In the end, everything is just an opinion. Be skeptical, and think for yourself! Or subscribe to my podcast RSS feed, on my RSS Feeds page.

If you're not sure what to view from the thousands of pages on my site, here are some suggestions: My Latest Airshow Report (photos and movies from Warbirds Over Wanaka, 2026), My Favourite Wines and Beers (tasting notes for some of my favourites), An Interesting Astronomical Observation (learn a bit about astronomy from these observing notes), See Some Photos (A short rail journey through the Taieri Gorge), Read Some Mac Tips (Learn about how to use your Mac, and fix some problems).

Latest Site News and Notifications (Desktop): You are currently viewing OJB's web site, version 2.4 which has some major changes, and possibly errors! Please report any problems to ojb@mac.com.