CI_User_agent::_set_languages PHP Method

    protected function _set_languages()
    {
        if (count($this->languages) === 0 && !empty($_SERVER['HTTP_ACCEPT_LANGUAGE'])) {
            $this->languages = explode(',', preg_replace('/(;\\s?q=[0-9\\.]+)|\\s/i', '', strtolower(trim($_SERVER['HTTP_ACCEPT_LANGUAGE']))));
        }
        if (count($this->languages) === 0) {
            $this->languages = array('Undefined');
        }
    }