custom taxonomy - wordpress
/*
* Plugin Name: Course Taxonomy
* Description: A short example showing how to add a taxonomy called Course.
* Version: 1.0
* Author: developer.wordpress.org
* Author URI: https://codex.wordpress.org/User:Aternus
*/
function wporg_register_taxonomy_course() {
$labels = array(
'name' => _x( 'Courses', 'taxonomy general name' ),
'singular_name' => _x( 'Course', 'taxonomy singular name' ),
'search_items' => __( 'Search Courses' ),
'all_items' => __( 'All Courses' ),
'parent_item' => __( 'Parent Course' ),
'parent_item_colon' => __( 'Parent Course:' ),
'edit_item' => __( 'Edit Course' ),
'update_item' => __( 'Update Course' ),
'add_new_item' => __( 'Add New Course' ),
'new_item_name' => __( 'New Course Name' ),
'menu_name' => __( 'Course' ),
);
$args = array(
'hierarchical' => true, // make it hierarchical (like categories)
'labels' => $labels,
'show_ui' => true,
'show_admin_column' => true,
'query_var' => true,
'rewrite' => [ 'slug' => 'course' ],
);
register_taxonomy( 'course', [ 'post' ], $args );
}
add_action( 'init', 'wporg_register_taxonomy_course' );