//create a new User object $user = new User(); //get the user ID $userId = $user->getUserId(); //print the user ID echo "User ID: " . $userId;
//include the User class require_once 'User.php'; //create a new User object $user = new User(); //get the user ID $userId = $user->getUserId(); //store the user ID in a session variable $_SESSION['userId'] = $userId;In this example, we include the User class and create a new User object. We then use the getUserId method to get the user ID and store it in a session variable for later use. Package/Library: It is difficult to determine which package or library the User::getUserId() method comes from without more information. It could be a built-in method in PHP or part of a custom user authentication library.