Create new post on user registration

Question

I'm trying to create a post when a user registers using the code from here:

Create posts on user registration

The user registers and the post is created BUT the user firstname and user lastname is not working. Each time a post is created just with the title of "Bio"

Here is my code:

function create_new_user_posts($user_id){
        // Get user ID for Post Title
        $user = get_user_by('id', $user_id);
        if (!$user_id>0)
                return;
        // Here we know the user has been created so to create a post we call wp_insert_post
        // Create post object
        $my_bio_post = array(
             'post_title' => $user->user_firstname . " ". $user->user_lastname . 'bio',
             'post_content' => '[li_profile id="author"]',
             'post_status' => 'publish',
             'post_author' => $user_id
        );
        // Insert the post into the database
        wp_insert_post( $my_bio_post );
}
add_action('user_register','create_new_user_posts');

Answer 1

Check out the documentation for the get_user_by() function - 'user_firstname' and 'user_lastname' aren't properties of the returned object. This is because this data is not a part of the user model - rather they are stored in user metadata.

You should be able to use the get_userdata() function, as it returns an object containing both user properties as well as user metadata.

Alternately, you can use get_user_meta() to retrieve the specific metadata you're looking for:

$first_name = get_user_meta( $user_id, 'first_name', true );

Answer 2

That makes sense to me but unfortunately it's still only creating posts with the title "Bio". The user meta data is not being found.

Here is the amended code I'm using:

add_action('user_register','create_new_user_posts');

function create_new_user_posts($userid){

    // Get user ID for Post Title;
    $user = get_userdata( $userid );

    if (!$userid>0)
            return;

    // Here we know the user has been created so to create a post we call wp_insert_post
    // Create post object
    $my_bio_post = array(
         'post_title' => $user->first_name . " ". $user->last_name . 'bio',
         'post_content' => '[li_profile id="author"]',
         'post_status' => 'publish',
         'post_author' => $userid
    );

    // Insert the post into the database
    wp_insert_post( $my_bio_post );
}