Add first and last name to the Wordpress registration form

Question

My WP registration form only had username, email address and password.

//1. firstname

add_action ('register_form', 'myplugin_register_form'); function myplugin_register_form () {

$first_name = ( ! empty( $_POST['first_name'] ) ) ? trim( $_POST['first_name'] ) : '';

    ?>

    <?php
}

//2. Add validation. In this case, we make sure first_name is required.
add_filter( 'registration_errors', 'myplugin_registration_errors', 10, 3 );
function myplugin_registration_errors( $errors, $sanitized_user_login, $user_email ) {

    if ( empty( $_POST['first_name'] ) || ! empty( $_POST['first_name'] ) && trim( $_POST['first_name'] ) == '' ) {
        $errors->add( 'first_name_error', __( '<strong>ERROR</strong>: You must include a first name.', 'mydomain' ) );
    }

    return $errors;
}

//3. Finally, save our extra registration user meta.
add_action( 'user_register', 'myplugin_user_register' );
function myplugin_user_register( $user_id ) {
    if ( ! empty( $_POST['first_name'] ) ) {
        update_user_meta( $user_id, 'first_name', trim( $_POST['first_name'] ) );
    }
}

In my registration form (template) I posted the following:

                <label><?php _e('First Name', APP_TD) ?></label>
                <input tabindex="3" type="text" name="first_name" class="text regular-text" id="display_name" value="<?php echo esc_attr( wp_unslash( $first_name ) ); ?>" maxlength="100" />

And it works as it should. It captures the first name and puts it in the user profile. However, I’m not sure how to add the last name to it, I’m pretty new, and for some reason I can’t get the surname to work. Help would be greatly appreciated.

Answer 1

I have never worked with something like this on my WP. Where did you place this code?

- :

//1. Fistname

add_action( 'register_form', 'myplugin_register_form' ); function myplugin_register_form() {

$first_name = ( ! empty( $_POST['first_name'] ) ) ? trim( $_POST['first_name'] ) : '';
$last_name = ( ! empty( $_POST['last_name'] ) ) ? trim( $_POST['last_name'] ) : '';

?>

<?php
}

//2. Add validation. In this case, we make sure first_name is required.
add_filter( 'registration_errors', 'myplugin_registration_errors', 10, 3 );
function myplugin_registration_errors( $errors, $sanitized_user_login, $user_email ) {

    if ( empty( $_POST['first_name'] ) || ! empty( $_POST['first_name'] ) && trim( $_POST['first_name'] ) == '' ) {
    $errors->add( 'first_name_error', __( '<strong>ERROR</strong>: You must include a first name.', 'mydomain' ) );
    }

    if ( empty( $_POST['last_name'] ) || ! empty( $_POST['last_name'] ) && trim( $_POST['last_name'] ) == '' ) {
    $errors->add( 'last_name_error', __( '<strong>ERROR</strong>: You must include a last name.', 'mydomain' ) );
    }

    return $errors;
}

//3. Finally, save our extra registration user meta.
add_action( 'user_register', 'myplugin_user_register' );
function myplugin_user_register( $user_id ) {
    if ( ! empty( $_POST['first_name'] ) ) {
        update_user_meta( $user_id, 'first_name', trim( $_POST['first_name']  ));
    }

    if ( ! empty( $_POST['last_name'] ) ) {
        update_user_meta( $user_id, 'last_name', trim( $_POST['last_name'] ) );
    }
}