public static function transform($xml, $xsl, $output = self::XML, array $parameters = array(), array $register_functions = array())
{
self::flush();
self::$lastXML = $xml;
self::$lastXSL = $xsl;
$result = null;
libxml_use_internal_errors(true);
if ($xml instanceof DOMDocument) {
$XMLDoc = $xml;
} else {
$XMLDoc = new DOMDocument();
$XMLDoc->loadXML($xml);
}
self::processLibXMLerrors(self::ERROR_XML);
if ($xsl instanceof DOMDocument) {
$XSLDoc = $xsl;
} else {
$XSLDoc = new DOMDocument();
$XSLDoc->loadXML($xsl);
}
if (!self::hasErrors() && $XSLDoc instanceof DOMDocument && $XMLDoc instanceof DOMDocument) {
$XSLProc = new XSLTProcessor();
if (!empty($register_functions)) {
$XSLProc->registerPHPFunctions($register_functions);
}
$XSLProc->importStyleSheet($XSLDoc);
if (is_array($parameters) && !empty($parameters)) {
$XSLProc->setParameter('', $parameters);
}
self::processLibXMLerrors(self::ERROR_XSL);
if (!self::hasErrors()) {
$result = $XSLProc->{'transformTo' . ($output == self::XML ? 'XML' : 'Doc')}($XMLDoc);
self::processLibXMLerrors(self::ERROR_XML);
}
}
return $result;
}
