Slugify Texto

slugify.php

function slugify($text) {
  $text = preg_replace('~[^\pL\d]+~u', '-', $text);
  $text = iconv('utf-8', 'us-ascii//TRANSLIT', $text);
  $text = preg_replace('~[^-\w]+~', '', $text);
  $text = preg_replace('~-+~', '-', $text);
  $text = trim($text, '-');
  $text = strtolower($text);
  if (empty($text)) {
    return 'n-a';
  }

  return $text;
}