Hi Shadda,
Knoppix 3.7 comes with Apache 1.3.33 and PHP 4.3.9. So getting Apache2 and PHP5 going is no easy task, even on a hard disk installation. You could do it by installing the packages from source, or you might consider a remastered Knoppix where this has already been done. For instance, LiveZope at http://math.cgu.edu.tw/ . This is a DVD size distro, so you would need a DVD burner, but it does provide a working PHP5 and Apache2 environment as well as many other features.
Regards,
Mark