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xml_set_processing_instruction_handler
(PHP 3>= 3.0.6, PHP 4 >= 4.0.0)
xml_set_processing_instruction_handler -- Set up processing instruction (PI) handlerDescription
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.
Poznßmka: Mφsto nßzvu funkce m∙╛e pou╛ito pole obsahujφcφ odkaz na objekt a nßzev metody.
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