The get_object_taxonomies() WordPress PHP function returns the names or objects of the taxonomies which are registered for the requested object or object type, such as a post object or post type name.
Usage
get_object_taxonomies('post');
Input: ‘post’
Output: Array(‘category’, ‘post_tag’)
Parameters
- $object_type (string|string|WP_Post) – Required. Name of the type of taxonomy object, or an object (row from posts).
- $output (string) – Optional. The type of output to return in the array. Accepts either ‘names’ or ‘objects’. Default ‘names’.
More information
See WordPress Developer Resources: get_object_taxonomies()
Examples
Taxonomy objects for post type
This code will return taxonomy objects for the ‘post’ post type.
$taxonomy_objects = get_object_taxonomies('post', 'objects');
print_r($taxonomy_objects);
Taxonomy names for post type
This code will return taxonomy names for the ‘post’ post type.
$taxonomy_names = get_object_taxonomies('post');
print_r($taxonomy_names);
Taxonomy names for post object
This code will return taxonomy names for the current post.
add_action('wp_head', 'wpdocs_output_current_post_taxonomies');
/**
* Output taxonomies for the current post
*/
function wpdocs_output_current_post_taxonomies() {
global $post;
$taxonomy_names = get_object_taxonomies($post);
print_r($taxonomy_names);
}
Get multiple post type taxonomies with objects
This code will return taxonomy objects for the selected post types.
$post_taxonomies_objects = get_object_taxonomies(
array('page', 'post', 'custom_post_type_slug'),
'objects'
);
print_r($post_taxonomies_objects);
Get multiple post type taxonomies with names
This code will return taxonomy names for the selected post types.
$post_taxonomies_names = get_object_taxonomies(
array('page', 'post', 'custom_post_type_slug'),
'names'
);
print_r($post_taxonomies_names);