[Drupal] Print menu tree to be imported in Taxonomy Manager

menu_tree.inc

<?php

$tree = menu_tree_all_data('main-menu');

function _explore($trees) {
  foreach($trees as $label => $sub) {
    if($sub['link']['hidden'] != 1) {
      $label = preg_replace('/[0-9]+/', '', $label);
      print str_repeat('-', ($sub['link']['depth'] - 1)) . trim($label) . "<br />";
      if(isset($sub['below'])) {
        _explore($sub['below']);
      }
    }
  }
}
_explore($tree);