Get the whole taxonomy from my Drupal

$vocabularies = taxonomy_get_vocabularies();

foreach ($vocabularies as $vocab) {
    $terms = taxonomy_get_tree($vocab->vid,  0, -1, 1);
        foreach($terms as $term){
               $items[]= l($term->name, "taxonomy/term/$term->tid");
           }
  }

if(count($items)) {
  return theme('item_list', $items);
}