public function setLanguageEnvironment($lang = null, $app = null) { if (empty($app)) { $app = $this->getApp(); } $old_lang = $this->setLanguage($lang); $this->setTextdomain($app, $this->get('fileroot', $app) . '/locale'); if ($old_lang == $GLOBALS['language']) { return; } $GLOBALS['session']->remove('horde', 'nls/'); }