wp_insert_user not creating account correctly when ID is manually set

Question

So, I'm trying to create a new user account with wp_insert_user based on credentials I receive from a Facebook user profile. I want the new user account ID to equal the Facebook account ID (ex: 1352348133).

If I set the ID parameter as per the Wordpress wp_insert_user reference page the user account is not created in wp_users as I would expect, however all the relevant meta data IS inserted in the wp_usermeta table. If I remove the ID parameter from the array I pass to wp_insert_user it creates the new record in wp_users as it would normally.

I was expecting to get a return error but it actually returns the newly created user ID on success. Here is an example of the code I'm passing:

$insert_user = wp_insert_user(array(
    'ID'              => 1352348133,
    'user_login'      => 'jdizzle',
    'user_nicename'   => 'jdizzle',
    'user_url'        => 'https://www.facebook.com/jdizzle',
    'first_name'      => 'Jared',
    'last_name'       => 'Eitnier',
    'display_name'    => 'Jared Eitnier',
    'nickname'        => 'jdizzle',
    'user_registered' => date('Y-m-d H:i:s'),
    'role'            => 'customer'
));

and the return value of

1352348133

I thought maybe the auto_increment on the ID field in wp_users might affect something but disabling that had no effect. Typecasting as an int had no effect. Length of the int isn't an issue.

Answer 1

According with Wordpress documentation, if a user ID is pass to the wp_insert_user() function, it will try to modify the user with that ID if exists, but a new user won't be created. You sould store the facebook ID as user_meta.