Add Tags to Custom Post Type

March 13, 2019

If you need to add Tags to your Custom Post Type, use the following snippet.

Place in your functions.php file where your Post Type is initialized.

'taxonomies' => array('post_tag')

Full Code:

$labels = array(
	'name' => _x('Speakers', 'post type general name'),
	'singular_name' => _x('Speaker', 'post type singular name'),
	'add_new' => _x('Add New Speaker', 'Speaker'),
	'add_new_item' => __('Add New Speaker'),
	'edit_item' => __('Edit Speaker'),
	'new_item' => __('New Speaker'),
	'all_items' => __('All Speakers'),
	'view_item' => __('View Speaker'),
	'search_items' => __('Search Speakers'),
	'not_found' =>  __('No Speakers found'),
	'not_found_in_trash' => __('No Speakers found in Trash'), 
	'parent_item_colon' => '',
	'menu_name' => __('Speakers')
);
$args = array(
	'labels' => $labels,
	'public' => true,
	'publicly_queryable' => true,
	'show_ui' => true, 
	'show_in_menu' => true, 
	'query_var' => true,
	'rewrite' => true,
	'capability_type' => 'post',
	'has_archive' => true, 
	'hierarchical' => false,
	'menu_position' => null,
	'supports' => array( 'title', 'revisions', 'thumbnail', 'editor', 'tags' ),
	'exclude_from_search' => false,
	'taxonomies' => array('post_tag'), // add the above line here
); 
register_post_type('speaker',$args);

Source.