Function and usage of create_initial_taxonomies() in wordpress


Answers ( 1 )


    The create_initial_taxonomies() function in WordPress is crucial for setting up the default taxonomies in a WordPress installation. Taxonomies in WordPress are used to group posts and custom post types together. This function ensures that the basic taxonomies like categories and tags are available in WordPress.


    • Name: create_initial_taxonomies()
    • Purpose: Creates the initial taxonomies in WordPress.


    • The create_initial_taxonomies() function is called twice during the WordPress load process.
    • First Call: It occurs in wp-settings.php before plugins are loaded. This early call is mainly for backward compatibility, ensuring that themes and plugins relying on default taxonomies can function correctly.
    • Second Call: It happens again on the init action hook. The init hook is a crucial point in the WordPress load process, allowing themes and plugins to initialize their functionalities.
    • Avoiding Rewrite Rule Conflicts: An important aspect of this function is that it avoids the registration of rewrite rules before the init action. Rewrite rules in WordPress are used for creating SEO-friendly URLs (permalinks). Registering these rules too early in the load process can lead to conflicts and unexpected behavior, especially with custom post types and taxonomies added by themes or plugins.

    Sample Usage:

    In a typical WordPress installation, you won't need to directly use create_initial_taxonomies() in your code, as it's a part of the core WordPress setup process. However, understanding its role is crucial when developing themes or plugins that interact with custom post types and taxonomies.

    For developers working on custom solutions, it’s essential to ensure that their custom taxonomies or post types are registered at the right time in the WordPress load process, usually hooking to the init action, to avoid conflicts and ensure proper functioning alongside the default WordPress taxonomies created by create_initial_taxonomies().

    Remember, direct modification or invocation of this function is not recommended as it is part of the WordPress core and is handled automatically by the system. Custom taxonomies should be registered using the register_taxonomy() function, typically hooked to init.

Leave an answer