In WordPress, WP_User is a class representing a WordPress site user. The new WP_User() syntax creates a new instance of the WP_User class.

This instance can interact with user data in the WordPress database, such as retrieving user information, updating user profiles, and checking user capabilities.

For example, you might use a new WP_User() in a plugin or theme to display a list of users on your WordPress site or to check whether a user can perform a certain action.

new WP_User()

Here is an example of how you might use the new WP_User() in a WordPress plugin:

$user_id = 1;
$user = new WP_User( $user_id );
if ( ! $user->exists() ) {
  return;
}

echo 'Username: ' . $user->user_login . '<br>';
echo 'Email: ' . $user->user_email . '<br>';
echo 'First Name: ' . $user->first_name . '<br>';
echo 'Last Name: ' . $user->last_name . '<br>';

This code creates a new WP_User object for the user with an ID of 1 and then displays some of the user’s information (username, email, first name, and last name).

I hope this helps! Let us know if you have any other questions.