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How can I programmatically create a custom post type in WordPress?

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How can I programmatically create a custom post type in WordPress?

Asked on Mar 11, 2026

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Creating a custom post type in WordPress can be achieved by using the `register_post_type` function, typically within your theme's `functions.php` file or a custom plugin. This function allows you to define new post types with specific capabilities and settings.

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

Additional Comment:

The `register_post_type` function should be hooked to the 'init' action to ensure it runs at the correct time.
Customize the `$args` array to include additional features like custom taxonomies or different capabilities.
Remember to flush rewrite rules by visiting the "Settings → Permalinks" page after registering a new post type.

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How can I programmatically create a custom post type in WordPress?

Asked on Mar 11, 2026

Answer

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