get_taxonomies( array $args = array(), string $output = ‘names’, string $operator = ‘and’ ): string[]|WP_Taxonomy[]

User Contributed Notes

1. Skip to note 8 content

   hearvox 9 years ago

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   Display a list of only public custom taxonomies — will not list include WordPress built-in taxonomies (e.g., categories and tags):

   <?php 
   $args = array(
     'public'   => true,
     '_builtin' => false
     
   ); 
   $output = 'names'; // or objects
   $operator = 'and'; // 'and' or 'or'
   $taxonomies = get_taxonomies( $args, $output, $operator ); 
   if ( $taxonomies ) {
   	echo '<ul>';
   	foreach ( $taxonomies  as $taxonomy ) {
   		echo '<li>' . $taxonomy . '</li>';
   	}
   	echo '</ul>';	
   }
   ?>
2. Skip to note 9 content

   Ulrich 6 years ago

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   When querying the taxonomies with a specific post type like “posts” in this case, only the taxonomies connected only with this post type will be shown. If a taxonomy is attached to multiple post types it will not be listed. Core Trac Ticket 27918

   <?php 
   $args = array(
   	'name' => array(
   		'post',
   	),
   );
   $taxonomies = get_taxonomies( $args );

   The alternative is to use get_object_taxonomies().
3. Skip to note 10 content

   hearvox 9 years ago

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   Display the plural name of a specific taxonomy (and setting the output to be 'object' rather than the default 'array‘):

   <?php 
   $args = array(
   	'name' => 'genre'
   );
   $output = 'objects'; // or names
   $taxonomies= get_taxonomies( $args, $output ); 
   if ( $taxonomies ) {
   	foreach ( $taxonomies as $taxonomy ) {
   		echo '<div>' . $taxonomy->labels->name . '</div>';
   	}
   }  
   ?>
4. Skip to note 11 content

   hearvox 9 years ago

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   Display a list all registered taxonomies:

   <?php
   $taxonomies = get_taxonomies();
   if ( ! empty( $taxonomies ) ) : ?>
   	<ul>
   		<?php
   		foreach ( $taxonomies as $taxonomy ) {
   		    echo '<li>' . $taxonomy . '</li>';
   		}
   		?>
   	</ul>
   <?php endif; ?>
5. Skip to note 12 content

   samjco 6 years ago

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   This can be used in certain use cases as if you need to find the taxonomy from a term slug

                   // We want to find the Taxonomy to this slug.
                   $term_slug = 'myterm';
                   $taxonomies = get_taxonomies();
                   foreach ( $taxonomies as $tax_type_key => $taxonomy ) {
                       // If term object is returned, break out of loop. (Returns false if there's no object)
                       if ( $term_object = get_term_by( 'slug', $term_slug , $taxonomy ) ) {
                           break;
                       }
                   }
   				//Get the taxonomy!!
                   echo $term_object->taxonomy . '<br>';
   
   				// You can also retrieve other thing of the term:
                   echo $term_object->name . '<br>'; //term name
                   echo $term_object->term_id . '<br>'; // term id
                   echo $term_object->description . '<br>'; // term description
   
   				// See all options by dumping the $term_object:
   				//var_dump( $term_object );
6. Skip to note 13 content

   Jamsheer Acowebs 3 years ago

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   get_taxonomies fails when we have to retrieve taxonomies which have multiple post types mapped.

   <?php
   register_taxonomy( 'area', array( 'profile', 'resource', 'demand' ), $args );
   
   $taxonomies = get_taxonomies( 'object_type' => array( 'demand' ), $output, $operator ); 
   ?>

   This will return empty array
7. Skip to note 14 content

   shewa12 2 years ago

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   Get only public taxonomies by post type that are displayed on the admin nav menu

       $args       = array(
           'object_type' => array( 'post' ),
           'public'      => true,
           'show_ui'     => true,
       );
       $taxonomies = get_taxonomies( $args, 'object' );
       $response   = array();
       foreach ( $taxonomies as $taxonomy ) {
           array_push(
               $response,
               array(
                   'name'  => $taxonomy->name,
                   'label' => $taxonomy->label,
               )
           );
       }
   
       print_r( $response );

   The typical response will look like this:

   [
       {
           "name": "category",
           "label": "Categories"
       },
       {
           "name": "post_tag",
           "label": "Tags"
       }
   ]