General Discussions

<?php
function GetXMLTree ($xmldata)
{
    // we want to know if an error occurs
    ini_set ('track_errors', '1');

    $xmlreaderror = false;

    $parser = xml_parser_create ('ISO-8859-1');
    xml_parser_set_option ($parser, XML_OPTION_SKIP_WHITE, 1);
    xml_parser_set_option ($parser, XML_OPTION_CASE_FOLDING, 0);
    if (!xml_parse_into_struct ($parser, $xmldata, $vals, $index)) {
        $xmlreaderror = true;
        echo "error";
    }
    xml_parser_free ($parser);

    if (!$xmlreaderror) {
        $result = array ();
        $i = 0;
        if (isset ($vals [$i]['attributes']))
            foreach (array_keys ($vals [$i]['attributes']) as $attkey)
            $attributes [$attkey] = $vals [$i]['attributes'][$attkey];

        $result [$vals [$i]['tag']] = array_merge ($attributes, GetChildren ($vals, $i, 'open'));
    }

    ini_set ('track_errors', '0');
    return $result;
}

function GetChildren ($vals, &$i, $type)
{
    if ($type == 'complete') {
        if (isset ($vals [$i]['value']))
            return ($vals [$i]['value']);
        else
            return '';
    }

    $children = array (); // Contains node data

    /* Loop through children */
    while ($vals [++$i]['type'] != 'close') {
        $type = $vals [$i]['type'];
        // first check if we already have one and need to create an array
        if (isset ($children [$vals [$i]['tag']])) {
            if (is_array ($children [$vals [$i]['tag']])) {
                $temp = array_keys ($children [$vals [$i]['tag']]);
                // there is one of these things already and it is itself an array
                if (is_string ($temp [0])) {
                    $a = $children [$vals [$i]['tag']];
                    unset ($children [$vals [$i]['tag']]);
                    $children [$vals [$i]['tag']][0] = $a;
                }
            } else {
                $a = $children [$vals [$i]['tag']];
                unset ($children [$vals [$i]['tag']]);
                $children [$vals [$i]['tag']][0] = $a;
            }

            $children [$vals [$i]['tag']][] = GetChildren ($vals, $i, $type);
        } else
            $children [$vals [$i]['tag']] = GetChildren ($vals, $i, $type);
        // I don't think I need attributes but this is how I would do them:
        if (isset ($vals [$i]['attributes'])) {
            $attributes = array ();
            foreach (array_keys ($vals [$i]['attributes']) as $attkey)
            $attributes [$attkey] = $vals [$i]['attributes'][$attkey];
            // now check: do we already have an array or a value?
            if (isset ($children [$vals [$i]['tag']])) {
                // case where there is an attribute but no value, a complete with an attribute in other words
                if ($children [$vals [$i]['tag']] == '') {
                    unset ($children [$vals [$i]['tag']]);
                    $children [$vals [$i]['tag']] = $attributes;
                }
                // case where there is an array of identical items with attributes
                elseif (is_array ($children [$vals [$i]['tag']])) {
                    $index = count ($children [$vals [$i]['tag']]) - 1;
                    // probably also have to check here whether the individual item is also an array or not or what... all a bit messy
                    if ($children [$vals [$i]['tag']][$index] == '') {
                        unset ($children [$vals [$i]['tag']][$index]);
                        $children [$vals [$i]['tag']][$index] = $attributes;
                    }
                    $children [$vals [$i]['tag']][$index] = array_merge ($children [$vals [$i]['tag']][$index], $attributes);
                } else {
                    $value = $children [$vals [$i]['tag']];
                    unset ($children [$vals [$i]['tag']]);
                    $children [$vals [$i]['tag']]['value'] = $value;
                    $children [$vals [$i]['tag']] = array_merge ($children [$vals [$i]['tag']], $attributes);
                }
            } else
                $children [$vals [$i]['tag']] = $attributes;
        }
    }

    return $children;
}
$url = "http://www.yourdomain.com/test.xml"; //URL of the XML FEED

$contents = file_get_contents($url);

$data = GetXMLTree ($contents);
print_r($data);


?>