How to use added_meta_type_meta action in WordPress

Example 1: Basic Hook Implementation

Here’s a straightforward example of how to use the added_meta_type_meta action. This code snippet shows you how to execute a function when this action occurs in WordPress.

    function weplugins_execute_on_added_meta_type_meta_event($mid, $object_id, $meta_key, $_meta_value){
        // Your custom code here.
    }
    // Add the action
    add_action("added_meta_type_meta", "weplugins_execute_on_added_meta_type_meta_event", 10, 4);
    

Example 2: Removing a Hook

If you ever need to remove a registered hook, use remove_action. Below is an example of how to remove the added_meta_type_meta action.

    remove_action("added_meta_type_meta", "weplugins_execute_on_added_meta_type_meta_event", 10, 4);
    

Ensure you provide the same callback function name, priority, and number of arguments when removing the hook callback.

Example 3: Custom Functionality

Let’s say you want to add some fancy functionality whenever a meta type is added. You can write your custom logic inside the function like this:

    function weplugins_custom_added_meta_type_action($mid, $object_id, $meta_key, $_meta_value){
        // Example: Log metadata addition
        error_log("Meta added: ID=$mid, Object ID=$object_id, Key=$meta_key");
    }
    // Registering the action
    add_action("added_meta_type_meta", "weplugins_custom_added_meta_type_action", 10, 4);