我有以下代码
$dom = new DOMDocument('1.0', 'utf-8');
$headerNS = $dom->createElementNS('http://somenamespace', 'ttauth:authHeader');
$accesuser = $dom->createElementNS('http://somenamespace', 'ttauth:Accessuser','aassdd');
$accesscode = $dom->createElementNS('http://somenamespace', 'ttauth:Accesscode','aassdd');
$headerNS->appendChild($accesuser);
$headerNS->appendChild($accesscode);
echo "<pre>";
echo ($dom->saveXML($headerNS));
echo "</pre>";
IT 将生成以下 xml 作为输出
<?xml version="1.0" ?>
<ttauth:authHeader xmlns:ttauth="http://somenamespace">
<ttauth:Accessuser>
ApiUserFor136
</ttauth:Accessuser>
<ttauth:Accesscode>
test1234
</ttauth:Accesscode>
</ttauth:authHeader>
但我想要以下输出
<ttauth:authHeader xmlns:ttauth="http://somenamespace">
<ttauth:Accessuser xmlns:ttauth="http://somenamespace">
aassdd
</ttauth:Accessuser>
<ttauth:Accesscode xmlns:ttauth="somenamespace">
aassdd
</ttauth:Accesscode>
</ttauth:authHeader>
看到xmlns 不包含在根元素以外的元素中,但我希望 xmlns 包含在所有元素中我做错了什么吗?