/**
* Alternative constructor: from filename
*
- * @param string $input a filename or string containing the XML element
+ * @param string $fname the filename of an XML document
* @param callable $filterCallback (optional)
* Function to call to do additional custom validity checks from the
* SAX element handler event. This gives you access to the element
/**
* Alternative constructor: from string
*
- * @param string $input a filename or string containing the XML element
+ * @param string $string a string containing an XML element
* @param callable $filterCallback (optional)
* Function to call to do additional custom validity checks from the
* SAX element handler event. This gives you access to the element