(PHP 5, PECL tidy:0.5.2-1.2)
tidy_is_xml — Indicates if the document is a generic (non HTML/XHTML) XML document
Procedural style:
Object oriented style:
This function returns TRUE if the specified tidy object is a generic XML document (non HTML/XHTML), or FALSE otherwise.
This function is not yet implemented in the Tidylib itself, so it always return FALSE.