$config = parse_ini_file('config.ini'); $debug = Config::getValue($config, 'debug'); $max_file_size = Config::getValue($config, 'max_file_size');
$db = new PDO('mysql:host=localhost;dbname=mydb', 'username', 'password'); $config = $db->query('SELECT * FROM config')->fetch(PDO::FETCH_ASSOC); $host = Config::getValue($config, 'host'); $port = Config::getValue($config, 'port');In this example, we use a database to store configuration values. We use PDO to connect to the database and retrieve the configuration values. We then use Config::getValue function to retrieve the values for the 'host' and 'port' keys. The package library for Config getValue function depends on the implementation. There are several PHP libraries that provide configuration management functions, such as Symfony Config Component, Zend\Config, and PHP Dotenv.