DOMDocument->relaxNGValidateSource
Performs relaxNG validation on the document
&reftitle.description;
boolDOMDocument->relaxNGValidateSourcestringsource
Performs relaxNG validation on the document based on the file defined in
string source.
See also DOMDocument->validate(),
DOMDocument->schemaValidate(),
DOMDocument->schemaValidateSource()
and DOMDocument->relaxNGValidate().