PHP xmlWriter::endDtd示例

 public function to_xml($options = array())
 {
     $klass = $this->array[0]->class_name();
     $plural = \Inflector::pluralize($klass);
     $xw = new \xmlWriter();
     $xw->openMemory();
     $xw->startDocument('1.0', 'UTF-8');
     $xw->startElement(strtolower($plural));
     foreach ($this->array as $value) {
         $xw->startElement(strtolower($klass));
         $xw->writeRaw($value->to_xml(false));
         $xw->endElement();
     }
     $xw->endElement();
     $xw->endDtd();
     return $xw->outputMemory(true);
 }