xml_set_object

Use XML Parser within an object

Description

bool xml_set_object ( resource $parser , object &$object )

This function allows to use parser inside object. All callback functions could be set with xml_set_element_handler etc and assumed to be methods of object.

Caution

In addition to calling xml_parser_free when the parsing is finished, as of PHP 7.0.0 it is necessary to also explicitly unset the reference to parser to avoid memory leaks.

Parameters

parser: A reference to the XML parser to use inside the object.
object: The object where to use the XML parser.

Return Values

Returns TRUE on success or FALSE on failure.

Examples

Example #1 xml_set_object example


<?php
class XMLParser
{
    private $parser;

    function __construct() 
    {
        $this->parser = xml_parser_create();

        xml_set_object($this->parser, $this);
        xml_set_element_handler($this->parser, "tag_open", "tag_close");
        xml_set_character_data_handler($this->parser, "cdata");
    }

    function __destruct()
    {
        xml_parser_free($this->parser);
        unset($this->parser);
    }

    function parse($data) 
    {
        xml_parse($this->parser, $data);
    }

    function tag_open($parser, $tag, $attributes) 
    {
        var_dump($tag, $attributes); 
    }

    function cdata($parser, $cdata) 
    {
        var_dump($cdata);
    }

    function tag_close($parser, $tag) 
    {
        var_dump($tag);
    }
}

$xml_parser = new XMLParser();
$xml_parser->parse("<A ID='hallo'>PHP</A>");
?>

The above example will output:

string(1) "A"
array(1) {
  ["ID"]=>
  string(5) "hallo"
}
string(3) "PHP"
string(1) "A"