Estoy intentado crear una web en xhtml pero con formato php.El rpoblema lo encuentro al validad con w3c.Me sale este error:
"Sorry, I am unable to validate this document because its content type is application/octet-stream, which is not currently supported by this service.
The Content-Type field is sent by your web server (or web browser if you use the file upload interface) and depends on its configuration. Commonly, web servers will have a mapping of filename extensions (such as ".html") to MIME Content-Type values (such as text/html).
That you received this message can mean that your server is not configured correctly, that your file does not have the correct filename extension, or that you are attempting to validate a file type that we do not support yet. In the latter case you should let us know that you need us to support that content type (please include all relevant details, including the URL to the standards document defining the content type) using the instructions on the Feedback Page."
En la cabecera de la web tengo esto:
"<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> "
Que estoy haciendo mal?