public function run()
    {
        CommonFunctions::checkForExtensions(array('xsl'));
        $xmlfile = $this->getXMLString();
        $xslfile = "phpsysinfo.xslt";
        $domxml = new DOMDocument();
        $domxml->loadXML($xmlfile);
        $domxsl = new DOMDocument();
        $domxsl->load($xslfile);
        $xsltproc = new XSLTProcessor;
        $xsltproc->importStyleSheet($domxsl);
        echo $xsltproc->transformToXML($domxml);
    }