PHP script to download Video and Mp3 from Youtube

Hi, What I need is a simple script, which makes it possible to download either the video or the mp3. So, in general; a simple website with the functionality to download videos of YouTube. Example: Given this youtube link: "[login to view URL]" you should be able to put 'dl' in between 'you' and 'tube' in the URL. Like this: "[login to view URL]" When you press enter in the search bar, it should take you to another site, where the user is able to download the video in either video or audio format. If you want to have a real life example, you should check out: "[login to view URL]" Example: You have: [login to view URL] And if you write 'magic' in the middle, it takes you to a place, where you'll be able to download the given video: [login to view URL] Feel free to message me if this sounds interesting (and possible) to you!