Piwik\Settings\Plugin\SystemSetting::getValue PHP Метод

    public function getValue()
    {
        $defaultValue = parent::getValue();
        // we access value first to make sure permissions are checked
        $configValue = $this->getValueFromConfig();
        if (isset($configValue)) {
            $defaultValue = $configValue;
            settype($defaultValue, $this->type);
        }
        return $defaultValue;
    }