How to get all taxonomies of a post type?

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How can i get taxonomies of a post type?

If I have a post type event and i need to find out the list of taxonomies that are attached to that post type. How do I find them?

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7 comments

  3. Apologies for raising an old post, but I came across this problem while looking for an answer for my use case.

    I wanted to retrieve all available taxonomies for a post type, and also retrieve all available terms per taxonomy.

    Thank you to Nick B for setting me in the right direction with his answer: https://wordpress.stackexchange.com/a/357448/198353

    // get a list of available taxonomies for a post type
$taxonomies = get_taxonomies(['object_type' => ['your_post_type']]);

$taxonomyTerms = [];

// loop over your taxonomies
foreach ($taxonomies as $taxonomy)
{
  // retrieve all available terms, including those not yet used
  $terms    = get_terms(['taxonomy' => $taxonomy, 'hide_empty' => false]);

  // make sure $terms is an array, as it can be an int (count) or a WP_Error
  $hasTerms = is_array($terms) && $terms;

  if($hasTerms)
  {
    $taxonomyTerms[$taxonomy] = $terms;        
  }
}

  4. Have you tried anything? something like this?

    <?php 

$args=array(
  'object_type' => array('event') 
); 

$output = 'names'; // or objects
$operator = 'and'; // 'and' or 'or'
$taxonomies=get_taxonomies($args,$output,$operator); 
if  ($taxonomies) {
  foreach ($taxonomies  as $taxonomy ) {
    echo '<p>'. $taxonomy. '</p>';
  }
}
?>

  6. Use get_object_taxonomies (https://developer.wordpress.org/reference/functions/get_object_taxonomies/), which takes either the name of your custom post type or a post object as the parameter:

    $taxonomies = get_object_taxonomies('custom_post_type');
$taxonomies = get_object_taxonomies($custom_post_object);

    get_taxonomies() won’t return any taxonomies that are used by multiple post types (https://core.trac.wordpress.org/ticket/27918).