are id3 functions available in PHP 4?

[marcnyc]

or are they only available in PHP 5?

Thanks

[NogDog]

I don't see anything in the PHP documentation that says it's only PHP 5, but there are a number of installation issues concerning the requisite PECL libraries. If you can't get it to work, you might want to look into this:
http://getid3.sourceforge.net/