PayPal\Core\PayPalConfigManager::__construct PHP Method

    private function __construct()
    {
        if (defined('PP_CONFIG_PATH')) {
            $configFile = constant('PP_CONFIG_PATH') . '/sdk_config.ini';
        } else {
            $configFile = implode(DIRECTORY_SEPARATOR, array(dirname(__FILE__), "..", "config", "sdk_config.ini"));
        }
        if (file_exists($configFile)) {
            $this->addConfigFromIni($configFile);
        }
    }