Weblabor

<?php
function xml_parse_into_assoc($file) {
  $data = implode("", file($file));
  $p = xml_parser_create();
  xml_parser_set_option($p, XML_OPTION_CASE_FOLDING, 0);
  xml_parser_set_option($p, XML_OPTION_SKIP_WHITE, 1);
  xml_parse_into_struct($p, $data, $vals, $index);
  xml_parser_free($p);
  $levels = array(
    null
  );
  foreach ($vals as $val) {
    if ($val['type'] == 'open' || $val['type'] == 'complete') {
      if (!array_key_exists($val['level'], $levels)) {
        $levels[$val['level']] = array();
      }
    }
    $prevLevel = & $levels[$val['level'] - 1];
    $parent = $prevLevel[sizeof($prevLevel) - 1];

    if ($val['type'] == 'open') {
      $val['children'] = array();
      array_push(&$levels[$val['level']], $val);
      continue;
    } elseif ($val['type'] == 'complete') {
      $parent['children'][$val['tag']] = $val['value'];
    } elseif ($val['type'] == 'close') {
      $pop = array_pop($levels[$val['level']]);
      $tag = $pop['tag'];

      if ($parent) {
        if (!array_key_exists($tag, $parent['children'])) {
          $parent['children'][$tag] = $pop['children'];
        } elseif (is_array($parent['children'][$tag])) {
          if(!isset($parent['children'][$tag][0])) {
            $oldSingle = $parent['children'][$tag];
            $parent['children'][$tag] = null;
            $parent['children'][$tag][] = $oldSingle;
          }
          $parent['children'][$tag][] = $pop['children'];
        }
      } else {
        return (array(
          $pop['tag'] => $pop['children']
        ));
      }
    }
    $prevLevel[sizeof($prevLevel) - 1] = $parent;
  }
}
echo json_encode(xml_parse_into_assoc('user_feed.xml'));
?>