Prado\TApplicationConfiguration::loadExternalXml PHP Метод

    protected function loadExternalXml($includeNode, $configPath)
    {
        if (($when = $includeNode->getAttribute('when')) === null) {
            $when = true;
        }
        if (($filePath = $includeNode->getAttribute('file')) === null) {
            throw new TConfigurationException('appconfig_includefile_required');
        }
        if (isset($this->_includes[$filePath])) {
            $this->_includes[$filePath] = '(' . $this->_includes[$filePath] . ') || (' . $when . ')';
        } else {
            $this->_includes[$filePath] = $when;
        }
        $this->_empty = false;
    }