What is WordPress Hook: update_{$meta_type}_meta
The update_{$meta_type}_meta hook in WordPress is used to perform actions before or after updating metadata of a specific type. This hook allows developers to modify or add custom functionality when metadata is updated within the WordPress database.
Understanding the Hook: update_{$meta_type}_meta
The update_{$meta_type}_meta hook is located within the update_metadata function in the WordPress core. It is triggered before and after metadata of a specific type is updated, providing developers with the opportunity to execute custom code at these specific points in the process.
Hook Parameters (if applicable): update_{$meta_type}_meta
The update_{$meta_type}_meta hook accepts parameters such as $meta_id, $object_id, $meta_key, $meta_value, and $prev_value. These parameters allow developers to access and manipulate the metadata being updated.
Hook Doesn’t Work: update_{$meta_type}_meta
If the update_{$meta_type}_meta hook doesn’t work as expected, it may be due to incorrect usage or conflicts with other hooks or functions. To troubleshoot, developers should ensure that the hook is being added and executed correctly, and check for any conflicting code that may be interfering with its functionality.
Best Practices & Usage Notes (if applicable): update_{$meta_type}_meta
When using the update_{$meta_type}_meta hook, it is important to consider the specific type of metadata being updated and to handle the data accordingly. Developers should also be mindful of any performance implications when adding custom functionality to this hook, as it may impact the overall performance of the WordPress site.
Usage Example: update_{$meta_type}_meta
“`php
function custom_update_meta_function( $meta_id, $object_id, $meta_key, $meta_value, $prev_value ) {
// Add custom functionality here
}
add_action( ‘update_post_meta’, ‘custom_update_meta_function’, 10, 5 );
“`
In this example, a custom function is added to the update_post_meta hook to execute specific actions before or after post metadata is updated. Developers can replace ‘custom_update_meta_function’ with their own function and modify the code to suit their specific requirements.