PHPUnit_Runner_Version::id PHP Méthode

    public static function id()
    {
        if (self::$pharVersion !== null) {
            return self::$pharVersion;
        }
        if (self::$version === null) {
            $version = new SebastianBergmann\Version('6.0', dirname(dirname(__DIR__)));
            self::$version = $version->getVersion();
        }
        return self::$version;
    }

 /**
  * Get PHPUnit version
  * @return string
  */
 protected static function getPhpUnitVersion()
 {
     if (method_exists('\\PHPUnit_Runner_Version', 'id')) {
         return \PHPUnit_Runner_Version::id();
     }
     return \PHPUnit_Runner_Version::VERSION;
 }