(PHP 4, PHP 5)
xml_set_unparsed_entity_decl_handler — Set up unparsed entity declaration handler
   Sets the unparsed entity declaration handler function for the XML parser
   parser.
  
   The handler will be called if the XML parser
   encounters an external entity declaration with an NDATA declaration, like
   the following:
   
<!ENTITY <parameter>name</parameter> {<parameter>publicId</parameter> | <parameter>systemId</parameter>}
        NDATA <parameter>notationName</parameter>
See » section 4.2.2 of the XML 1.0 spec for the definition of notation declared external entities.
parserA reference to the XML parser to set up unparsed entity declaration handler function.
handler
       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 six
       parameters:
       
$parser
        , string $entity_name
        , string $base
        , string $system_id
        , string $public_id
        , string $notation_name
        )parserentity_namebasesystemId) of the external entity.Currently
           this parameter will always be set to an empty string.
          
         system_idpublic_idnotation_name
       If a handler function is set to an empty string, or FALSE, the handler
       in question is disabled.
      
Note: Instead of a function name, an array containing an object reference and a method name can also be supplied.
   Returns TRUE on success or FALSE on failure.