| Parameters: (3) | - (string) $taxonomy Taxonomy key. Must not exceed 32 characters and may only contain
lowercase alphanumeric characters, dashes, and underscores. See sanitize_key().
- Required: Yes
- (array|string) $object_type Object type or array of object types with which the taxonomy should be associated.
- Required: Yes
- (array|string) $args {
Optional. Array or query string of arguments for registering a taxonomy.
@type string[] $labels An array of labels for this taxonomy. By default, Tag labels are
used for non-hierarchical taxonomies, and Category labels are used
for hierarchical taxonomies. See accepted values in
get_taxonomy_labels(). Default empty array.
@type string $description A short descriptive summary of what the taxonomy is for. Default empty.
@type bool $public Whether a taxonomy is intended for use publicly either via
the admin interface or by front-end users. The default settings
of `$publicly_queryable`, `$show_ui`, and `$show_in_nav_menus`
are inherited from `$public`.
@type bool $publicly_queryable Whether the taxonomy is publicly queryable.
If not set, the default is inherited from `$public`
@type bool $hierarchical Whether the taxonomy is hierarchical. Default false.
@type bool $show_ui Whether to generate and allow a UI for managing terms in this taxonomy in
the admin. If not set, the default is inherited from `$public`
(default true).
@type bool $show_in_menu Whether to show the taxonomy in the admin menu. If true, the taxonomy is
shown as a submenu of the object type menu. If false, no menu is shown.
`$show_ui` must be true. If not set, default is inherited from `$show_ui`
(default true).
@type bool $show_in_nav_menus Makes this taxonomy available for selection in navigation menus. If not
set, the default is inherited from `$public` (default true).
@type bool $show_in_rest Whether to include the taxonomy in the REST API. Set this to true
for the taxonomy to be available in the block editor.
@type string $rest_base To change the base url of REST API route. Default is $taxonomy.
@type string $rest_namespace To change the namespace URL of REST API route. Default is wp/v2.
@type string $rest_controller_class REST API Controller class name. Default is 'WP_REST_Terms_Controller'.
@type bool $show_tagcloud Whether to list the taxonomy in the Tag Cloud Widget controls. If not set,
the default is inherited from `$show_ui` (default true).
@type bool $show_in_quick_edit Whether to show the taxonomy in the quick/bulk edit panel. It not set,
the default is inherited from `$show_ui` (default true).
@type bool $show_admin_column Whether to display a column for the taxonomy on its post type listing
screens. Default false.
@type bool|callable $meta_box_cb Provide a callback function for the meta box display. If not set,
post_categories_meta_box() is used for hierarchical taxonomies, and
post_tags_meta_box() is used for non-hierarchical. If false, no meta
box is shown.
@type callable $meta_box_sanitize_cb Callback function for sanitizing taxonomy data saved from a meta
box. If no callback is defined, an appropriate one is determined
based on the value of `$meta_box_cb`.
@type string[] $capabilities {
Array of capabilities for this taxonomy.
@type string $manage_terms Default 'manage_categories'.
@type string $edit_terms Default 'manage_categories'.
@type string $delete_terms Default 'manage_categories'.
@type string $assign_terms Default 'edit_posts'.
}
@type bool|array $rewrite {
Triggers the handling of rewrites for this taxonomy. Default true, using $taxonomy as slug. To prevent
rewrite, set to false. To specify rewrite rules, an array can be passed with any of these keys:
@type string $slug Customize the permastruct slug. Default `$taxonomy` key.
@type bool $with_front Should the permastruct be prepended with WP_Rewrite::$front. Default true.
@type bool $hierarchical Either hierarchical rewrite tag or not. Default false.
@type int $ep_mask Assign an endpoint mask. Default `EP_NONE`.
}
@type string|bool $query_var Sets the query var key for this taxonomy. Default `$taxonomy` key. If
false, a taxonomy cannot be loaded at `?{query_var}={term_slug}`. If a
string, the query `?{query_var}={term_slug}` will be valid.
@type callable $update_count_callback Works much like a hook, in that it will be called when the count is
updated. Default _update_post_term_count() for taxonomies attached
to post types, which confirms that the objects are published before
counting them. Default _update_generic_term_count() for taxonomies
attached to other object types, such as users.
@type string|array $default_term {
Default term to be used for the taxonomy.
@type string $name Name of default term.
@type string $slug Slug for default term. Default empty.
@type string $description Description for default term. Default empty.
}
@type bool $sort Whether terms in this taxonomy should be sorted in the order they are
provided to `wp_set_object_terms()`. Default null which equates to false.
@type array $args Array of arguments to automatically use inside `wp_get_object_terms()`
for this taxonomy.
@type bool $_builtin This taxonomy is a "built-in" taxonomy. INTERNAL USE ONLY!
Default false.
}
- Required: No
- Default: array()
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