The registered_taxonomy_for_object_type WordPress PHP action fires after a taxonomy is registered for an object type.
Usage
add_action('registered_taxonomy_for_object_type', 'your_custom_function', 10, 2); function your_custom_function($taxonomy, $object_type) { // your custom code here }
Parameters
$taxonomy
(string) – Taxonomy name.$object_type
(string) – Name of the object type.
More information
See WordPress Developer Resources: registered_taxonomy_for_object_type
Examples
Display a message after registering a taxonomy for a custom post type
This example will display a message in the admin area after a taxonomy is registered for a custom post type.
add_action('registered_taxonomy_for_object_type', 'display_message_after_registering_taxonomy', 10, 2); function display_message_after_registering_taxonomy($taxonomy, $object_type) { if ('your_custom_post_type' === $object_type) { add_action('admin_notices', 'show_success_message'); } } function show_success_message() { echo '<div class="notice notice-success is-dismissible">'; echo '<p>Successfully registered the taxonomy for your custom post type!</p>'; echo '</div>'; }
Log taxonomy registration
Log the taxonomy and object type when a taxonomy is registered for an object type.
add_action('registered_taxonomy_for_object_type', 'log_taxonomy_registration', 10, 2); function log_taxonomy_registration($taxonomy, $object_type) { error_log("Registered taxonomy '{$taxonomy}' for object type '{$object_type}'"); }
Modify registered taxonomy labels
Modify the labels of a taxonomy after it has been registered for a custom post type.
add_action('registered_taxonomy_for_object_type', 'modify_taxonomy_labels', 10, 2); function modify_taxonomy_labels($taxonomy, $object_type) { if ('your_custom_taxonomy' === $taxonomy) { $taxonomy_object = get_taxonomy($taxonomy); $taxonomy_object->labels->name = 'New Taxonomy Name'; } }
Add a custom capability to a taxonomy
Add a custom capability to a taxonomy after it has been registered for a custom post type.
add_action('registered_taxonomy_for_object_type', 'add_custom_capability_to_taxonomy', 10, 2); function add_custom_capability_to_taxonomy($taxonomy, $object_type) { if ('your_custom_taxonomy' === $taxonomy) { $taxonomy_object = get_taxonomy($taxonomy); $taxonomy_object->cap->assign_terms = 'assign_custom_terms'; } }
Automatically assign a taxonomy term to a custom post type
Automatically assign a taxonomy term to a custom post type when the taxonomy is registered.
add_action('registered_taxonomy_for_object_type', 'auto_assign_taxonomy_term', 10, 2); function auto_assign_taxonomy_term($taxonomy, $object_type) { if ('your_custom_taxonomy' === $taxonomy && 'your_custom_post_type' === $object_type) { add_action('save_post_your_custom_post_type', 'assign_default_term', 100, 2); } } function assign_default_term($post_id, $post) { $default_term_id = 1; // Replace with your default term ID wp_set_object_terms($post_id, $default_term_id, 'your_custom_taxonomy'); }