S3::__getCloudFrontInvalidationBatchXML PHP Method

    private static function __getCloudFrontInvalidationBatchXML($paths, $callerReference = '0')
    {
        $dom = new DOMDocument('1.0', 'UTF-8');
        $dom->formatOutput = true;
        $invalidationBatch = $dom->createElement('InvalidationBatch');
        foreach ($paths as $path) {
            $invalidationBatch->appendChild($dom->createElement('Path', $path));
        }
        $invalidationBatch->appendChild($dom->createElement('CallerReference', $callerReference));
        $dom->appendChild($invalidationBatch);
        return $dom->saveXML();
    }