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?

7 Answers 7


I think I've got it! After looking at couple of functions in the taxonomy.php file in WordPress I have found the function get_object_taxonomies(); which did the trick :)

  • 2
    See this for more info: codex.wordpress.org/Function_Reference/get_object_taxonomies Commented Jun 21, 2011 at 13:15
  • wow... good to know about get_object_taxonomies(). it just helped me hijack template_redirect Commented Nov 10, 2011 at 3:17
  • Hi thankx for this but how to order them by ID instead of NAME?
    – dh47
    Commented Oct 19, 2015 at 7:08
  • easiest way will be just sort them using a for or foreach loop.
    – Sisir
    Commented Oct 19, 2015 at 9:25
  • Yes I am fetching using foreach loop but I am getting order by name $taxonomies = get_object_taxonomies( array( 'post_type' => $post_type ) ); foreach( $taxonomies as $taxonomy ) : // Gets every "category" (term) in this taxonomy to get the respective posts $terms = get_terms( $taxonomy ); ?> <ul class="specials"><?php foreach( $terms as $term ) : ?> <li><h2 ><?php echo $term->name; ?></h2>
    – dh47
    Commented Oct 19, 2015 at 10:19

get_categories will do the job.

  • (I think if I understood the question right!) Commented Jun 21, 2011 at 11:46
  • 4
    Thing is i don't have any taxonomy name, that's what i want to find out. I only have the name of the post type. By the post type name i want to find out all the taxonomy that are attached to it. Thanks anyway!
    – Sisir
    Commented Jun 21, 2011 at 12:47

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;

    $taxonomyTerms[$taxonomy] = $terms;        
  • This crashes my website
    – Pete
    Commented Feb 5, 2021 at 7:35
  • In what sense does this code snippet crash your website? Unless you have an astronomical amount of taxonomies and terms, it's unlikely to be the fault of this snippet.
    – seemly
    Commented Feb 10, 2021 at 13:21

Have you tried anything? something like this?


  'object_type' => array('event') 

$output = 'names'; // or objects
$operator = 'and'; // 'and' or 'or'
if  ($taxonomies) {
  foreach ($taxonomies  as $taxonomy ) {
    echo '<p>'. $taxonomy. '</p>';
  • 1
    Looked at get_taxonomies(); function on codex but it has very poor documentation and was no idea how i can pass the post types.
    – Sisir
    Commented Jun 21, 2011 at 9:56
  • Sorry, this code is returning all registered taxonomies in wordpress.
    – Sisir
    Commented Jun 21, 2011 at 9:59
$taxonomies = get_taxonomies( [ 'object_type' => [ 'custom_post_type' ] ] );

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).



This worked for me.

  • This function retrieves all taxonomy names for the given post, which is not what OP wants, but this is what I was actually looking for, thanks.
    – frzsombor
    Commented Sep 26, 2023 at 13:45

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