How do I mimic Pathauto transliterated output for an alias in my custom PHP code?

Question

When writing my custom function I need to manually append node name to a taxonomy term link. To get the taxonomy term part done I use:

  $link_uri = taxonomy_term_uri($term);
  $path_alias = drupal_get_path_alias($link_uri['path']);

This works ok, now - I want to append node name ("/" . $node_name), but instead of raw string, I want the Pathauto transliterated output, as set in the URL alias configuration, for that node context.

What function should I use to mimic that output? I looked at hook_pathauto_alias_alter(&$alias, array $context) but I'm not sure that's what I need.

Answer 1

If you want to filter your string the way pathauto does it, you can use pathauto_cleanstring():

module_load_include('inc', 'pathauto', 'pathauto');
$node_title .= pathauto_cleanstring($node->title);

Answer 2

On Drupal 8/9, you can use the Pathauto Alias Cleaner service :

/** @var Drupal\pathauto\AliasCleaner $cleaner */
$cleaner = \Drupal::service('pathauto.alias_cleaner');
$cleaner->cleanString($node->getTitle());