使用dom和php程序两种方式生成xml

$doc = new DOMDocument('1.0', 'UTF-8');
$doc->formatOutput = true;
$root = $doc->createElement('document'); //创建根
$doc->appendChild($root); //加入根
//webSite
$webSite = $doc->createElement('webSite');
$webSite->appendchild($doc->createTextNode('wanjike.com'));
$root->appendChild($webSite);
//webMaster
$webMaster = $doc->createElement('webMaster');
$webMaster->appendChild($doc->createTextNode('admin@wanjike.com'));
$root->appendChild($webMaster);
//updatePeri
$updatePeri = $doc->createElement('updatePeri');
$updatePeri->appendChild($doc->createTextNode('120'));
$root->appendChild($updatePeri);
header("Content-Type: text/xml"); //显示成xml形式
echo $doc->saveXML();
header("Content-type:text/xml;charset=utf-8");
echo "<?xml version=\"1.0\" encoding=\"utf-8\"?>\n\r";
echo "<node>\n\r";
echo "<updated>" . date('Y-m-d H:i:s', $this->currentTime) . "</updated>\n\r";
echo $body;
echo "</node>";