XML_SET_START_NAMESPACE_DECL_HANDLER(3) 				 1				   XML_SET_START_NAMESPACE_DECL_HANDLER(3)

xml_set_start_namespace_decl_handler - Set up start namespace declaration handler

SYNOPSIS

       bool xml_set_start_namespace_decl_handler (resource  $parser, callable  $handler)

DESCRIPTION

	Set  a	handler  to  be called when a namespace is declared. Namespace declarations occur inside start tags. But the namespace declaration
       start handler is called before the start tag handler for each namespace declared in that start tag.

PARAMETERS

	      o $parser
		- A reference to the XML parser.

	      o $handler
		-$handler is a string containing the name of a function that must exist when xml_parse(3) is called  for  $parser.   The  function
		named  by  $handler  must  accept  three parameters, and should return an integer value. If the value returned from the handler is
		FALSE (which it will be if no value is returned),  the	XML  parser  will  stop  parsing  and  xml_get_error_code(3)  will  return
		XML_ERROR_EXTERNAL_ENTITY_HANDLING.
		 handler (resource  $parser, string  $prefix, string  $uri)

		     o $parser
		       - The first parameter, parser, is a reference to the XML parser calling the handler.

		     o $prefix
		       - The prefix is a string used to reference the namespace within an XML object.

		     o $uri
		       - Uniform Resource Identifier (URI) of namespace.

	       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.

RETURN VALUES

	Returns TRUE on success or FALSE on failure.

SEE ALSO

       xml_set_end_namespace_decl_handler(3).

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