function generateSlug($phrase)
{
  $result = strtolower($phrase);
  $result = preg_replace("/[^a-z0-9\s-]/", "", $result);
  $result = trim(preg_replace("/\s+/", " ", $result));
  $result = trim(substr($result, 0, 100));
  $result = preg_replace("/\s/", "-", $result);
  return $result;
}