xml_set_processing_instruction_handler
(PHP 4, PHP 5)
xml_set_processing_instruction_handler — Set up processing instruction (PI) handler
Description
Sets the processing instruction (PI) handler function for the XML parser parser .
A processing instruction has the following format:
<?
?>
Parameters
- parser
-
- handler
-
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:
handler ( resource $parser , string $target , string $data )- parser
- The first parameter, parser, is a reference to the XML parser calling the handler.
- target
- The second parameter, target , contains the PI target.
- data
- The third parameter, data , contains the PI data.
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.