[PHP] [xml] character data

[Decapode Azur]

I do not understand why this line does not work :
$info[$element] = $content;

but yet this works: echo $content;

why? what is the trick?

-- 

$xml_comment_file = basename($svg_file, '.svg.xml') .'.info.xml';

if (file_exists($xml_comment_file)) {
    $file = $xml_comment_file;

    $info = array();
    $element = null;

    function startElement($parser, $name, $attrs) {
        global $element;
        $element = $name;
    }
    function endElement($parser, $name) {
        print "";
    }
    function characterData($parser, $content) {
        global $info;
        global $element;
        $info[$element] = $content;
        //$info[$element] = sprintf("%s", $content);
    }

    $xml_parser = xml_parser_create();
    xml_parser_set_option($xml_parser, XML_OPTION_CASE_FOLDING, FALSE);
    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\n");

    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);

    print_r($info);
}
/*
# the output is without $content :
Array
(
    [info] =>
    [file] =>
    [orig-file] =>
    [orig-author] =>
    [bitmap-src] =>
    [orig-date] =>
    [svg-date] =>

)
*/

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