Netscape vs IE

Can  W3C Markup Validation Service add php doc types to it's service?

The following page works fine in I.E. but not in Net. Nav.:

to enter the problem php page, go here: http://www.juddweb.net/hcs/enter_password3.php and enter this:
class: Physics
I.D. number: 894

Thanks,
S Judd