tutorials, tutorials, tutorials. download other scripts and go through the code. know someone who knows it, so you can ask them questions. find a forum with people who know php. im 13 and learned it in a few months. its not hard.
yeah i got a server that allows it. If you want some space on it, be my guest. Yeah i think it's worth learning, that's why im learning it. So many sites are based on it, i mean even NS is.