(PHP 4 >= 4.0.5, PHP 5)
xml_set_start_namespace_decl_handler — Set up start namespace declaration handler
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.
A reference to the XML 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 four 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() will return XML_ERROR_EXTERNAL_ENTITY_HANDLING.
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.