PackageVersions\Versions::getVersion PHP Method

    public static function getVersion(string $packageName) : string
    {
        return FallbackVersions::getVersion($packageName);
    }

 public function getVersion($package, $full = false)
 {
     $version = Versions::getVersion($package);
     return $full ? $version : strstr($version, '@', true);
 }