Overview of Methods
\nn\t3::Environment()->extLoaded($extName = '');
\nn\t3::Environment()->extPath($extName = '');
\nn\t3::Environment()->extRelPath($extName = '');
\nn\t3::Environment()->getBaseURL();
\nn\t3::Environment()->getCookieDomain($loginType = 'FE');
\nn\t3::Environment()->getCountries($lang = 'de', $key = 'cn_iso_2');
\nn\t3::Environment()->getCountryByIsocode($cn_iso_2 = NULL, $field = 'cn_iso_2');
\nn\t3::Environment()->getDefaultLanguage($returnKey = 'typo3Language');
\nn\t3::Environment()->getDomain();
\nn\t3::Environment()->getExtConf($ext = 'nnhelpers', $param = '');
\nn\t3::Environment()->getLanguage();
\nn\t3::Environment()->getLanguageFallbackChain($langUid = true);
\nn\t3::Environment()->getLanguageKey();
\nn\t3::Environment()->getLanguages($key = 'languageId', $value = NULL);
\nn\t3::Environment()->getLocalConf($path = '');
\nn\t3::Environment()->getPathSite();
\nn\t3::Environment()->getPostMaxSize();
\nn\t3::Environment()->getPsr4Prefixes();
\nn\t3::Environment()->getRelPathSite();
\nn\t3::Environment()->getSite($request = NULL);
\nn\t3::Environment()->getVarPath();
\nn\t3::Environment()->isBackend();
\nn\t3::Environment()->isFrontend();
\nn\t3::Environment()->isLocalhost();
\nn\t3::Environment()->t3Version();