How to use register_post action in WordPress

register_post action

Fires when submitting registration form data, before the user is created.

To use register_post action, first you have to register it using add_action. You can write this code into functions.php of your activated theme or in a custom WordPress Plugin. We always prefer to create a custom WordPress Plugin while using hooks so nothing breaks when you update your WordPress Theme in the future.

In the below live example, we have defined a function weplugins_execute_on_register_post_event which takes 3 parameters and we registered using add_action. The first parameter register_post is the name of the hook, the second parameter weplugins_execute_on_register_post_event is the name of the function which needs 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 in the registered function.

Sometime, you have to remove a registered hook so you can use remove_action to remove register_post action.

Example 1: Registering the Hook

The following example demonstrates how to register the register_post hook.

    function weplugins_execute_on_register_post_event($sanitized_user_login, $user_email, $errors){
        // You can write code here to be executed when this action occurs in WordPress.
        // Use the parameters received in the function arguments and implement the required additional custom functionality according to your website requirements.
    }
    // add the action
    add_action( "register_post", "weplugins_execute_on_register_post_event" , 10, 3);
    

Example 2: Removing the Hook

To remove a hook callback, use the example below.

    remove_action( "register_post", "weplugins_execute_on_register_post_event", 10, 3 );
    

Please make sure to provide the same callback function name, priority, and number of arguments while removing the hook callback.

Example 3: Handling Errors

This example shows how you can handle errors with the register_post hook.

    function weplugins_handle_register_post_errors($sanitized_user_login, $user_email, $errors){
        if(empty($sanitized_user_login)){
            $errors->add('empty_username', __('The username field cannot be empty.'));
        }
        if(!is_email($user_email)){
            $errors->add('invalid_email', __('The email address is not valid.'));
        }
    }
    add_action( "register_post", "weplugins_handle_register_post_errors", 10, 3 );
    

Contact Us

If you need any customization or help with this hook, feel free to Contact Us.