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Sets the unparsed entity declaration handler function for the XML parser parser. The handler will be called if the XML parser encounters an external entity declaration with an NDATA declaration, like the following:
Example Create an XML parser, set character data handler, set unparsed entity declaration handler, and parse an XML document:
Unparsed entities are XML entities that are not parsed as text but represent external data such as images or non-XML resources, typically declared with the NDATA keyword. This tutorial covers how to use this function effectively within the PHP XML Parser extension, demonstrating real-world usage, best practices, and common pitfalls.
The xml_set_unparsed_entity_decl_handler () function is a PHP built-in function that sets a user-defined function as the handler for unparsed entity declarations in an XML parser.
Discover how to manage unparsed entity declarations in PHP XML with the setUnparsedEntityDeclHandler function.
Name of the notation of this entity (see xml_set_notation_decl_handler ()). If a handler function is set to an empty string, or FALSE, the handler in question is disabled.
PHP XML Parser Introduction The XML functions lets you parse, but not validate, XML documents. XML is a data format for standardized structured document exchange. More information on XML can be found in our XML Tutorial. This extension uses the Expat XML parser. Expat is an event-based parser, it views an XML document as a series of events. When an event occurs, it calls a specified function ...
