class Country { public $name; public $isoCode; public $currency; public function __construct($name, $isoCode, $currency) { $this->name = $name; $this->isoCode = $isoCode; $this->currency = $currency; } public function getName() { return $this->name; } public function getIsoCode() { return $this->isoCode; } public function getCurrency() { return $this->currency; } } $usa = new Country("United States", "US", "USD"); echo $usa->getName(); // output: United StatesThis code defines the Country class with its properties and methods, then creates a new Country object for the United States and prints its name using the `getName()` method. The package library for this Country model could be a general-purpose PHP package for working with geographical data, such as `geoipservices/geoip` or `maxmind/geoip2-php`.