protected function build($urls)
{
$this->xml = new \DOMDocument('1.0', 'UTF-8');
$this->xml->preserveWhiteSpace = false;
$this->xml->formatOutput = true;
$urlsetNode = $this->xml->createElement('urlset');
$urlsetNode->setAttribute('xmlns', 'http://www.sitemaps.org/schemas/sitemap/0.9');
$this->xml->appendChild($urlsetNode);
foreach ($urls as $url) {
$urlNode = $this->xml->createElement('url');
$locNode = $this->xml->createElement('loc');
$escapedUrl = $this->xml->createTextNode($this->protocol . ':' . Fetcher::formatUrl($url));
$locNode->appendChild($escapedUrl);
$urlNode->appendChild($locNode);
$lastmodNode = $this->xml->createElement('lastmod', date('Y-m-d'));
$urlNode->appendChild($lastmodNode);
$changefreqNode = $this->xml->createElement('changefreq', $this->changeFrequency);
$urlNode->appendChild($changefreqNode);
$priorityNode = $this->xml->createElement('priority', $this->getUrlPriority($url));
$urlNode->appendChild($priorityNode);
$this->xml->appendChild($urlNode);
}
return $this->xml;
}
