class Database { private $host; private $username; private $password; private $database; public function __construct($config) { $this->host = $config['host']; $this->username = $config['username']; $this->password = $config['password']; $this->database = $config['database']; } public function connect() { // code to connect to database using the configured values } } // create a new database object with a configuration array $config = array( 'host' => 'localhost', 'username' => 'root', 'password' => '', 'database' => 'my_database' ); $database = new Database($config);This example shows how to create a `Database` object with a configuration array that contains the values for the database connection. The `Config __construct` method is used to assign the values to the class properties. This code example might be part of a package library that provides a database abstraction layer for PHP developers. The `Database` class could be just one of many classes that are included in the library.