To create a custom taxonomy in WordPress, follow these steps:

  • Open the functions.php file in your WordPress theme's directory.
  • Add the following code to register a new taxonomy:

    function custom_taxonomy() {
      $labels = array(
        'name'                       => 'Taxonomy Name',
        'singular_name'              => 'Taxonomy Singular Name',
        'menu_name'                  => 'Menu Name',
        'all_items'                  => 'All Items',
        'parent_item'                => 'Parent Item',
        'parent_item_colon'          => 'Parent Item:',
        'new_item_name'              => 'New Item Name',
        'add_new_item'               => 'Add New Item',
        'edit_item'                  => 'Edit Item',
        'update_item'                => 'Update Item',
        'separate_items_with_commas' => 'Separate items with commas',
        'search_items'               => 'Search Items',
        'add_or_remove_items'        => 'Add or remove items',
        'choose_from_most_used'      => 'Choose from the considerable used items',
        'not_found'                  => 'Not Found',
        'no_terms'                   => 'No items',
        'items_list_navigation'      => 'Items list navigation',
        'items_list'                 => 'Items list',
        'back_to_items'              => 'Back to items'
      $args = array(
        'labels'                     => $labels,
        'hierarchical'               => true,
        'public'                     => true,
        'show_ui'                    => true,
        'show_admin_column'          => true,
        'show_in_nav_menus'          => true,
        'show_tagcloud'              => true,
        'rewrite'                    => array( 'slug' => 'taxonomy' )
      register_taxonomy( 'taxonomy', array( 'post' ), $args );
    add_action( 'init', 'custom_taxonomy', 0 );

  • Save the functions.php file.
  • Go to your WordPress admin panel and click on 'Posts' or 'Pages', depending on the post type you assigned your taxonomy to.
  • Click on 'Add New' or edit an existing post/page.
  • In the right sidebar, you should now see a box labeled with the name of your taxonomy. You can add new terms by clicking the '+ Add New Taxonomy' link.

That's it! You have now created a custom taxonomy in WordPress.

BY Best Interview Question ON 28 Feb 2023