require_once 'vendor/autoload.php'; // Include composer autoloader use PHPMailer\PHPMailer\Util; $version = Util::getVersion(); // Get version of PHPMailer echo "PHPMailer version: " . $version;
require_once 'vendor/autoload.php'; // Include composer autoloader use Symfony\Component\Console\Util\Util; $version = Util::getVersion(); // Get version of Symfony echo "Symfony version: " . $version;In this example, we require the composer autoloader and then use the "Util" class from the Symfony package library to get the current version number of Symfony. Package Library: Without more information, it's difficult to determine exactly which package library the "Util" class and "getVersion" function are referring to. However, the naming convention of the function ("getVersion") suggests that it is a common naming convention among many package libraries, so it is likely that it could be used in a variety of different libraries.