Environment 

\nn\t3::Environment()->extLoaded($extName = ''); 

Check whether extension is loaded.

\nn\t3::Environment()->extLoaded('news');

| ➜ Go to source code of Environment::extLoaded()

\nn\t3::Environment()->extPath($extName = ''); 

Get the absolute path to an extension e.g. /var/www/website/ext/nnsite/

\nn\t3::Environment()->extPath('extname');

| @return string

| ➜ Go to source code of Environment::extPath()

\nn\t3::Environment()->extRelPath($extName = ''); 

Get the relative path (from the current script) to an extension e.g. ../typo3conf/ext/nnsite/

\nn\t3::Environment()->extRelPath('extname');

| @return string

| ➜ Go to source code of Environment::extRelPath()

\nn\t3::Environment()->getBaseURL(); 

Returns the baseUrl(config.baseURL), incl. http(s) protocol e.g. https://www.webseite.de/

\nn\t3::Environment()->getBaseURL();

| @return string

| ➜ Go to source code of Environment::getBaseURL()

\nn\t3::Environment()->getCookieDomain($loginType = 'FE'); 

Get the cookie domain e.g. www.webseite.de

\nn\t3::Environment()->getCookieDomain()

| @return string

| ➜ Go to source code of Environment::getCookieDomain()

\nn\t3::Environment()->getCountries($lang = 'de', $key = 'cn_iso_2'); 

Get all countries available in the system

\nn\t3::Environment()->getCountries();

| @return array

| ➜ Go to source code of Environment::getCountries()

\nn\t3::Environment()->getCountryByIsocode($cn_iso_2 = NULL, $field = 'cn_iso_2'); 

A country from the static_countriestable using its country code (e.g. DE)

\nn\t3::Environment()->getCountryByIsocode( 'DE' );
\nn\t3::Environment()->getCountryByIsocode( 'DEU', 'cn_iso_3' );

| @return array

| ➜ Go to source code of Environment::getCountryByIsocode()

\nn\t3::Environment()->getDefaultLanguage($returnKey = 'typo3Language'); 

Returns the default language (Default Language). In TYPO3, this is always the language with ID 0 The languages must be defined in the YAML site configuration.

// 'de'
\nn\t3::Environment()->getDefaultLanguage();

// 'de-DE'
\nn\t3::Environment()->getDefaultLanguage('hreflang');

// ['title'=>'German', 'typo3Language'=>'de', ...]
\nn\t3::Environment()->getDefaultLanguage( true );

| ➜ Go to source code of Environment::getDefaultLanguage()

\nn\t3::Environment()->getDomain(); 

Get the domain e.g. www.webseite.de

\nn\t3::Environment()->getDomain();

| @return string

| ➜ Go to source code of Environment::getDomain()

\nn\t3::Environment()->getExtConf($ext = 'nnhelpers', $param = ''); 

Get configuration from ext_conf_template.txt (backend, extension configuration)

\nn\t3::Environment()->getExtConf('nnhelpers', 'varname');

Also exists as ViewHelper:

{nnt3:ts.extConf(path:'nnhelper')}
{nnt3:ts.extConf(path:'nnhelper.varname')}
{nnt3:ts.extConf(path:'nnhelper', key:'varname')}

| @return mixed

| ➜ Go to source code of Environment::getExtConf()

\nn\t3::Environment()->getLanguage(); 

Get the current language (as a number) of the frontend.

\nn\t3::Environment()->getLanguage();

| @return int

| ➜ Go to source code of Environment::getLanguage()

\nn\t3::Environment()->getLanguageFallbackChain($langUid = true); 

Returns a list of the languages that should be used if, for example e.g. a page or element does not exist in the desired language.

Important: The fallback chain contains in the first place the current or in $langUid transferred language.

// Use settings for current language (see Site-Config YAML)
\nn\t3::Environment()->getLanguageFallbackChain(); // --> e.g. [0] or [1,0]

// Get settings for a specific language
\nn\t3::Environment()->getLanguageFallbackChain( 1 );
// --> [1,0] - if fallback was defined in Site-Config and the fallbackMode is set to "fallback"
// --> [1] - if there is no fallback or the fallbackMode is set to "strict"

| ➜ Go to source code of Environment::getLanguageFallbackChain()

\nn\t3::Environment()->getLanguageKey(); 

Get the current language (as abbreviation like "de") in the frontend

\nn\t3::Environment()->getLanguageKey();

| @return string

| ➜ Go to source code of Environment::getLanguageKey()

\nn\t3::Environment()->getLanguages($key = 'languageId', $value = NULL); 

Returns a list of all defined languages. The languages must be defined in the YAML site configuration.

// [['title'=>'German', 'iso-639-1'=>'de', 'typo3Language'=>'de', ....], ['title'=>'English', 'typo3Language'=>'en', ...]]
\nn\t3::Environment()->getLanguages();

// ['de'=>['title'=>'German', 'typo3Language'=>'de'], 'en'=>['title'=>'English', 'typo3Language'=>'en', ...]]
\nn\t3::Environment()->getLanguages('iso-639-1');

// ['de'=>0, 'en'=>1]
\nn\t3::Environment()->getLanguages('iso-639-1', 'languageId');

// [0=>'de', 1=>'en']
\nn\t3::Environment()->getLanguages('languageId', 'iso-639-1');

There are also helpers for converting language IDs into language abbreviations and vice versa:

// --> 0
\nn\t3::Convert('de')->toLanguageId();

// --> 'de'
\nn\t3::Convert(0)->toLanguage();

| ➜ Go to source code of Environment::getLanguages()

\nn\t3::Environment()->getLocalConf($path = ''); 

Get configuration from LocalConfiguration.php

\nn\t3::Environment()->getLocalConf('FE.cookieName');

| @return string

| ➜ Go to source code of Environment::getLocalConf()

\nn\t3::Environment()->getPathSite(); 

Get the absolute path to the Typo3 root directory. e.g. /var/www/website/

\nn\t3::Environment()->getPathSite()

Formerly: PATH_site

| ➜ Go to source code of Environment::getPathSite()

\nn\t3::Environment()->getPostMaxSize(); 

Return maximum upload size for files from the frontend. This specification is the value that was defined in php.ini and, if necessary was overwritten via the .htaccess.

\nn\t3::Environment()->getPostMaxSize(); // e.g. '1048576' for 1MB

| @return integer

| ➜ Go to source code of Environment::getPostMaxSize()

\nn\t3::Environment()->getPsr4Prefixes(); 

Return list of PSR4 prefixes.

This is an array with all folders that must be parsed by class when autoloading / bootstrapping TYPO3 have to be parsed. In a TYPO3 extension, this is the Classes folder by default. The list is generated by Composer/TYPO3.

An array is returned. Key is Vendor\Namespace\, Value is an array with paths to the folders, which are searched recursively for classes. It does not matter whether TYPO3 is running in composer mode or not.

\nn\t3::Environment()->getPsr4Prefixes();

Example for return:

[
    'Nng\Nnhelpers\' => ['/path/to/composer/../../public/typo3conf/ext/nnhelpers/Classes', ...],
    'Nng\Nnrestapi\' => ['/path/to/composer/../../public/typo3conf/ext/nnrestapi/Classes', ...]
]

| @return array

| ➜ Go to source code of Environment::getPsr4Prefixes()

\nn\t3::Environment()->getRelPathSite(); 

Get the relative path to the Typo3 root directory. e.g. ../

\nn\t3::Environment()->getRelPathSite()

| @return string

| ➜ Go to source code of Environment::getRelPathSite()

\nn\t3::Environment()->getRequest(); 

Fetches the current request. Workaround for special cases - and in the event that the core team does not implement this option itself in the future.

$request = \nn\t3::Environment()->getRequest();

| @return \TYPO3\CMS\Core\Http\ServerRequest

| ➜ Go to source code of Environment::getRequest()

\nn\t3::Environment()->getSite($request = NULL); 

Get the current site object. This object can be used to access the configuration from the site YAML file from TYPO3 9 onwards, for example.

In the context of a MiddleWare, the site may not yet be parsed / loaded. In this case, the $request from the MiddleWare can be passed to determine the site.

See also \nn\t3::Settings()->getSiteConfig() to read the site configuration.

\nn\t3::Environment()->getSite();
\nn\t3::Environment()->getSite( $request );

\nn\t3::Environment()->getSite()->getConfiguration();
\nn\t3::Environment()->getSite()->getIdentifier();

| @return \TYPO3\CMS\Core\Site\Entity\Site

| ➜ Go to source code of Environment::getSite()

\nn\t3::Environment()->getSyntheticFrontendRequest($pageUid = NULL); 

Generates a virtual frontend request that can be used in any context. Also initializes the frontend TypoScript object and all relevant objects.

$request = \nn\t3::Environment()->getSyntheticFrontendRequest();

| ➜ Go to source code of Environment::getSyntheticFrontendRequest()

\nn\t3::Environment()->getVarPath(); 

Get the absolute path to the /var directory of Typo3.

This directory stores temporary cache files. Depending on the version of Typo3 and installation type (Composer or Non-Composer mode) this directory can be found in different locations.

// /full/path/to/typo3temp/var/
$path = \nn\t3::Environment()->getVarPath();

| ➜ Go to source code of Environment::getVarPath()

\nn\t3::Environment()->isBackend(); 

Check whether we are in the backend context

\nn\t3::Environment()->isBackend();

| @return bool

| ➜ Go to source code of Environment::isBackend()

\nn\t3::Environment()->isFrontend(); 

Check whether we are in the frontend context

\nn\t3::Environment()->isFrontend();

| @return bool

| ➜ Go to source code of Environment::isFrontend()

\nn\t3::Environment()->isHttps(); 

Returns true if the page is accessed via HTTPS.

$isHttps = \nn\t3::Environment()->isHttps();

| @return boolean

| ➜ Go to source code of Environment::isHttps()

\nn\t3::Environment()->isLocalhost(); 

Checks whether installation is running on local server

\nn\t3::Environment()->isLocalhost()

| @return boolean

| ➜ Go to source code of Environment::isLocalhost()

\nn\t3::Environment()->setLanguage($languageId = 0); 

Set the current language.

Helpful if we need the language in a context where it has not been initialized, e.g. in a initialized, e.g. in a MiddleWare or CLI.

\nn\t3::Environment()->setLanguage(0);

| ➜ Go to source code of Environment::setLanguage()

\nn\t3::Environment()->setRequest($request); 

Sets the current request. Is set in the RequestParser middleware

\nn\t3::Environment()->setRequest( $request );

| ➜ Go to source code of Environment::setRequest()

\nn\t3::Environment()->t3Version(); 

Get the version of Typo3, as an integer, e.g. "8" Alias to \nn\t3::t3Version()

\nn\t3::Environment()->t3Version();

if (\nn\t3::t3Version() >= 8) {
    // only for >= Typo3 8 LTS
}

| @return int

| ➜ Go to source code of Environment::t3Version()