setName('translations:languagenames') ->setDescription('Shows available language names'); } protected function execute(InputInterface $input, OutputInterface $output) { $languages = API::getInstance()->getAvailableLanguageNames(); $languageNames = array(); foreach ($languages as $languageInfo) { $languageNames[] = $languageInfo['english_name']; } sort($languageNames); $output->writeln("Currently available languages:"); $output->writeln(implode("\n", $languageNames)); } }