How can PHP4 users implement XML parsing using expat?

PHP4 users can implement XML parsing using expat by using the `xml_parse` function provided by PHP. This function allows users to parse XML documents using the expat library. By providing the XML data to be parsed and defining callback functions for handling the start and end of elements, as well as character data, users can effectively parse XML using expat in PHP4. 

$xml_parser = xml_parser_create();
xml_set_element_handler($xml_parser, "startElement", "endElement");
xml_set_character_data_handler($xml_parser, "characterData");

function startElement($parser, $name, $attrs) {
    // Handle start of element
}

function endElement($parser, $name) {
    // Handle end of element
}

function characterData($parser, $data) {
    // Handle character data
}

$xml_data = '<xml>...</xml>'; // XML data to be parsed
xml_parse($xml_parser, $xml_data);
xml_parser_free($xml_parser);

Keywords

PHP4 XML parsing expat implementation users

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