Thanks, jeffa!

You're right, (2) is not true. I commented out that particular line and it still works. But it's puzzling because the first time I commented it out, the image didn't show on the web page. It only showed on sebsequent uploadings.

I had been running the code without that 'open(FH, $file)' line and I swore it didn't work for almost an hour when I was at it. I double-checked the folder where it was supposed to go to and although the file was created, the image wasn't properly saved. That was when I added the 'open(FH, $file)' line and then the image was rightly created, which puzzled me.