The best way to describe PHP would be a language that is open sourced, interpretive and is html scripted. This is the best language to use for web development and this is due to the fact that it is possible to embed it into html pages. It is important to learn this language because of the fact that it is very popular and has high speed scripting. You do not have to build applications from the beginning if you use this. Additionally, having learnt this language the job possibilities are endless.