If you are sitting there on your first day of work trying to figure out what to do, messing with existing code is great, but basing your future code on existing code is not! As I posted jokingly about a few weeks ago, I have a new job as a PHP programmer, and based on the code I asked, "This is PHP 3, isn't it?" (worded more intelligbly, of course) and my supervisor said, "yup." Now, 2 weeks later I decide to run a little phpinfo(); and low and behold 4.3!! with gd, jpg, and png support too! So save yourself the embarassment and try to find this information out for sure before you write code that doesn't take advantage of the timesaving features of new server software. (an example might be the cookie scripts I just wrote since I couldn't do sessions in v.3!) And yes, it was intentional to put this in general discussion.
Every code you code is good, sometimes I just write some code I'll never use, just to see if I can do it and how fast it is and to train my skills. So it isn't just "waisted", I'm sure you got better in php by coding that, even if it's just a little bit.
I just wish I could FIND a job. The Uk market is pretty dire. Anyone want a graduate programmer to mould in their own image?