(3.0.6 - 3.0.18 only, PHP 4 >= 4.0.0)
xml_set_processing_instruction_handler -- Set up processing instruction (PI) handler
Description
int xml_set_processing_instruction_handler (int parser, string
handler)
Sets the processing instruction (PI) handler function for the XML parser
parser. handler is a string containing the name of a function that must
exist when xml_parse() is called for
parser.
A processing instruction has the following format:
You can put PHP code into such a tag, but be aware of one limitation: in an XML PI, the PI end tag
( ?>) can not be quoted, so this character sequence should not appear in the PHP code
you embed with PIs in XML documents. If it does, the rest of the PHP code, as well as the "real" PI
end tag, will be treated as character data.
The function named by handler must accept three parameters:
handler (int 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.
TRUE is returned if the handler is set up, FALSE if
parser is not a parser.
Note: Instead of a function name, an array containing an object reference and a method
name can also be supplied.
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