(PHP 4, PHP 5)
xml_set_processing_instruction_handler — Set up processing instruction (PI) handler
Sets the processing instruction (PI) handler function for the XML parser parser.
A processing instruction has the following format:
A reference to the XML parser to set up processing instruction (PI) handler function.
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 three parameters:
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.