stripping comments

I'm trying to strip comments out of my code. I can get it to strip one section of comments but the problem comes in when I have more then one comment section to strip. I am using this: $code = preg_replace('/\/*(.*?)*\//is', '$1', $code) and need help fixing my regex. example: ======== code 1 /* comment 1 */ code 2 /* comment 2 */ code 3 result (bad): ============= code 1 code 3 result (good): ============== code 1 code 2 code 3