How to use comment_id_not_found action in WordPress

Hey there! If you’re working on a WordPress site and need to handle situations where comments are attempted on non-existent posts, the comment_id_not_found action hook is your friend. Let’s dive into how you can use this hook with some practical examples.

comment_id_not_found action

Fires when a comment is attempted on a post that does not exist.

To use the comment_id_not_found action, you first need to register it using add_action. You can write this code into the functions.php of your activated theme or in a custom WordPress Plugin. At WePlugins, we always recommend creating a custom WordPress Plugin when using hooks to avoid issues when updating your WordPress theme in the future.

In the example below, we define a function weplugins_execute_on_comment_id_not_found_event which takes one parameter and is registered using add_action. The first parameter comment_id_not_found is the name of the hook, the second parameter weplugins_execute_on_comment_id_not_found_event is the name of the function to be called, the third parameter is the priority of calling the hook if the same hook is used multiple times, and the last parameter is the number of arguments (if any) to be passed to the registered function.

Sometimes, you might need to remove a registered hook, so you can use remove_action to remove the comment_id_not_found action.

Parameters

Below is the 1 parameter required to use this hook:

• $comment_post_ID : (int) Post ID.

Live Examples

Example 1: Basic Hook Registration

Here’s a simple example of how you can use this hook:

    function weplugins_execute_on_comment_id_not_found_event($comment_post_ID){
        //You can write code here to be executed when this action occurs in WordPress.
        //Use the parameters received in the function arguments & implement the required
        //additional custom functionality according to your website requirements.
    }
    // add the action
    add_action( "comment_id_not_found", "weplugins_execute_on_comment_id_not_found_event" , 10, 1);
    

Example 2: Logging the Event

In this example, we’ll log the event when a comment is attempted on a non-existent post:

    function weplugins_log_comment_id_not_found($comment_post_ID){
        error_log("Comment attempted on post ID: " . $comment_post_ID);
    }
    // add the action
    add_action( "comment_id_not_found", "weplugins_log_comment_id_not_found" , 10, 1);
    

Example 3: Sending an Email Notification

This example will send an email notification to the admin when a comment is attempted on a non-existent post:

    function weplugins_notify_admin_comment_id_not_found($comment_post_ID){
        $admin_email = get_option('admin_email');
        wp_mail($admin_email, "Comment Attempted on Non-Existent Post", "A comment was attempted on post ID: " . $comment_post_ID);
    }
    // add the action
    add_action( "comment_id_not_found", "weplugins_notify_admin_comment_id_not_found" , 10, 1);
    

To remove a hook callback, use the example below:

    remove_action( "comment_id_not_found", "weplugins_execute_on_comment_id_not_found_event", 10, 1 );
    

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

Contact Us

If you need any customization or run into issues using this hook, feel free to reach out to us at WePlugins Contact Page. We’re here to help!