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    XML 标签映射示例

    示例 #1 将 XML 映射为 HTML

    此示例直接地将 XML 标签映射为 HTML 标签。在“map_array”中未找到的元素将被忽略。当然，此示例只针对特定的 XML 文档类型起作用。

    <?php
    $file     = "data.xml";
    $map_array = array(
    "BOLD" => "B",
    "EMPHASIS" => "I",
    "LITERAL" => "TT"
    );

    function     startElement($parser, $name, $attrs)
    {
    global     $map_array;
    if (isset(    $map_array[$name])) {
    echo     "<$map_array[$name]>";
    }
    }

    function     endElement($parser, $name)
    {
    global     $map_array;
    if (isset(    $map_array[$name])) {
    echo     "</$map_array[$name]>";
    }
    }

    function     characterData($parser, $data)
    {
    echo     $data;
    }

    $xml_parser = xml_parser_create();
    // use case-folding so we are sure to find the tag in $map_array
    xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, true);
    xml_set_element_handler($xml_parser, "startElement", "endElement");
    xml_set_character_data_handler($xml_parser, "characterData");
    if (!(    $fp = fopen($file, "r"))) {
    die(    "could not open XML input");
    }

    while (    $data = fread($fp, 4096)) {
    if (!    xml_parse($xml_parser, $data, feof($fp))) {
    die(    sprintf("XML error: %s at line %d",
    xml_error_string(xml_get_error_code($xml_parser)),
    xml_get_current_line_number($xml_parser)));
    }
    }
    xml_parser_free($xml_parser);
    ?>

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