xml_set_processing_instruction_handler
xml_set_processing_instruction_handler
(PHP 4, PHP 5, PHP 7)
xml_set_processing_instruction_handler — Set up processing instruction (PI) handler
Description
bool xml_set_processing_instruction_handler ( resource $parser , callable $handler )
Sets the processing instruction (PI) handler function for the XML parser parser
.
A processing instruction has the following format:
<?
?>
Parameters
-
parser
-
A reference to the XML parser to set up processing instruction (PI) handler function.
-
handler
-
handler
is a string containing the name of a function that must exist when xml_parse() is called forparser
.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.
© 1997–2017 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://secure.php.net/manual/en/function.xml-set-processing-instruction-handler.php