/**
* Parses the response as an XML / HTML document.
*
* If the response is not a valid document, and empty document is returned.
*
* @return \DOMDocument
*/
public function parseDocument()
{
$pattern = '/(x|ht)ml(?:.*;charset=(\\S+))?/i';
$contentType = $this->response->getHeader('Content-Type');
$isDocument = preg_match($pattern, $contentType, $matches) == 1;
$charset = isset($matches[2]) ? $matches[2] : 'UTF-8';
$useInternalErrors = libxml_use_internal_errors(true);
$disableEntityLoader = libxml_disable_entity_loader(true);
$document = new \DOMDocument('1.0', $charset);
$document->validateOnParse = true;
if ($isDocument) {
$isXml = strtolower($matches[1]) == 'x';
if ($isXml) {
$document->loadXML($this->getText());
} else {
$document->loadHTML($this->getText());
}
}
libxml_use_internal_errors($useInternalErrors);
libxml_disable_entity_loader($disableEntityLoader);
return $document;
}
