[help] simpel php code for extract keyword of youtube link

please help me i want a simple php script

i input box where i put youtube link it will extract keyword

e.g

http://www.youtube.com/watch?v=afgyNp5HueQ

keywords

php, tutorial, learn, programming, free, compiler, jit, examples, example, tutorials, basic, get, started, variables, datatypes, zend

Thanks in advance for help me

 

there is a function in php called get_meta_tags()

 

Thanks man !!!! crivion it work's