When I started to learn PHP in 2007 I've written a little accounting program for the guys at the company I was working for. I know they are still using it becau

When I started to learn PHP in 2007 I've written a little accounting program for the guys at the company I was working for. I know they are still using it because I get a call every year: I need to manually switch the current year. They don't want me to implement this feature for some reason but they still keep calling me once a year. At least there are no other bugs I know of!