Set “first name” as “display name” when a new user registers

Hi,

We can achieve this by using some custom code:

1. Create an empty plugin like this: https://gist.github.com/sareiodata/76f701e01db6685829db

2. Add the following code to the end of it:

/*
 * Change the Display Name after Registration into First Name
 */

add_action( 'user_register', 'wppbc_change_displayname_into_firstname' );

function wppbc_change_displayname_into_firstname( $user_id )
{
    $data = get_userdata( $user_id );
    // check if these data are available in your real code!
    wp_update_user(
        array (
            'ID' => $user_id,
            'display_name' => "$data->first_name"
        )
    );
}

3. Install this plugin via FTP (copy it inside wp-content/plugins) or create a zip archive with it and install it via the WordPress plugin upload functionality

Test it out and let me know if it works.

Best regards,

Hi Teodor!
Thank you very much for your support.

I tried to do as you told me, but unfortunatly don’t work ??

How can I try to change?

Thanks again!

Hi,

In order to debug this issue further please submit a support ticket.

I will wait for your ticket and we will continue our conversation there.

Best regards,

Add this to your functions.php:

add_action( 'user_register', 'my_profile_update', 10, 1 );
function my_profile_update( $user_id ) {

   // Change Display Name
    $user = get_userdata( $user_id );
    $userdata = array(
        'ID' => $user->ID,
        'display_name' => $user->user_firstname,
    );
    wp_update_user( $userdata );
}