(PHP 3>= 3.0.6, PHP 4 , PHP 5)
xml_set_unparsed_entity_decl_handler -- 
     Set up unparsed entity declaration handler
    
Syntax
bool 
xml_set_unparsed_entity_decl_handler ( resource parser, callback handler )
     Sets the unparsed entity declaration 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.
    
     This 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.
    
     The function named by handler must accept six
     parameters:
     handler ( resource parser, string entity_name, string base, string system_id, string public_id, string notation_name )
     
- parser
 
         The first parameter, parser, is a
         reference to the XML parser calling the
         handler.
        
- entity_name
 
         The name of the entity that is about to be defined.
        
- base
 
         This is the base for resolving the system identifier
         (systemId) of the external entity.  Currently
         this parameter will always be set to an empty string.
        
- system_id
 
         System identifier for the external entity.
        
- public_id
  
         Public identifier for the external entity.
        
- notation_name
  
         Name of the notation of this entity (see
         xml_set_notation_decl_handler()).
        
     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.