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How can I create a custom post type with a unique taxonomy in WordPress?

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How can I create a custom post type with a unique taxonomy in WordPress?

Asked on Mar 02, 2026

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Creating a custom post type with a unique taxonomy in WordPress involves registering both the post type and the taxonomy using WordPress functions. This is typically done in your theme's `functions.php` file or a custom plugin.

<!-- BEGIN COPY / PASTE -->
    // Register Custom Post Type
    function create_custom_post_type() {
        $args = array(
            'label' => 'Books',
            'public' => true,
            'supports' => array('title', 'editor', 'thumbnail'),
            'has_archive' => true,
        );
        register_post_type('book', $args);
    }
    add_action('init', 'create_custom_post_type');

    // Register Custom Taxonomy
    function create_custom_taxonomy() {
        $args = array(
            'label' => 'Genres',
            'rewrite' => array('slug' => 'genre'),
            'hierarchical' => true,
        );
        register_taxonomy('genre', 'book', $args);
    }
    add_action('init', 'create_custom_taxonomy');
    <!-- END COPY / PASTE -->

Additional Comment:

Ensure you have the correct capabilities set if you want to restrict access to certain user roles.
Use the 'supports' array to define which features the custom post type should have (e.g., 'title', 'editor').
Hierarchical taxonomies behave like categories, while non-hierarchical ones behave like tags.
Always test your custom post types and taxonomies on a staging site before deploying to a live environment.

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How can I create a custom post type with a unique taxonomy in WordPress?

Asked on Mar 02, 2026

Answer

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