(PHP 4, PHP 5, PHP 7)
Set up unparsed entity declaration handler
bool xml_set_unparsed_entity_decl_handler ( resource $parser, callable $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> {<pa