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# xml_set_notation_decl_handler

(PHP 3>= 3.0.6, PHP 4 )

xml_set_notation_decl_handler -- set up notation declaration handler

## Description

bool xml_set_notation_decl_handler ( resource parser, string handler)

Sets the notation declaration 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 notation declaration is part of the document's DTD and has the following format:

    <!NOTATION
         name {system_id |
         public_id}>

See section 4.7 of the XML 1.0 spec for the definition of notation declarations.

The function named by `handler` must accept five parameters: `handler` ( resource parser, string notation_name, string base, string system_id, string public_id)

`parser`

  The first parameter, `parser`, is a reference to the XML parser calling the handler.

`notation_name`

  This is the notation's `name`, as per the notation format described above.

`base`

  This is the base for resolving the system identifier (`system_id`) of the notation declaration. Currently this parameter will always be set to an empty string.

`system_id`

  System identifier of the external notation declaration.

`public_id`

  Public identifier of the external notation declaration.

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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