class User { private $name; private $age; public function setName($name) { $this->name = $name; } public function setAge($age) { $this->age = $age; } public function setUser($userData) { $this->setName($userData['name']); $this->setAge($userData['age']); } } $user = new User(); $userData = array('name' => 'John Doe', 'age' => 30); $user->setUser($userData);In this example, the setUser method takes in an array of user data, and updates the name and age properties of the User object. The package library for this code example is likely to be an Object-Oriented Programming (OOP) library for PHP, as the code is written in a class-based format. There are many different PHP OOP libraries available, such as Symfony, Laravel, and CodeIgniter.