xml_set_default_handler
Description
bool xml_set_default_handler ( resource parser, callback handler)Sets the default handler function for the XML parser parser. handler is a string containing the name of a function that must exist when xml_parse() is called for parser.
     The function named by handler must accept      two parameters:      handler ( resource parser, string data)
      
- parser
- The first parameter, parser, is a reference to the XML parser calling the handler. 
- data
- The second parameter, data, contains the character data. This may be the XML declaration, document type declaration, entities or other data for which no other handler exists. 
If a handler function is set to an empty string, or FALSE, the handler in question is disabled.
TRUE is returned if the handler is set up, FALSE if parser is not a parser.
Note: Instead of a function name, an array containing an object reference and a method name can also be supplied.
