如果我有一个方法可以使用PHP DOM创建一个混合的XML内容的节点正确地理解你在JavaScript中需要类似innerHTML的东西。有一个解决方案：

  $ xmlString ='some< b> mixed< / b>内容'; 

 $ dom = new DOMDocument; 
 $ fragment = $ dom-> createDocumentFragment（）; 
 $ fragment-> appendXML（$ xmlString）; 
 $ dom-> appendChild（$ fragment）; 
 //完成
 

进行汇总。您需要的是：

• DOMDocument :: createDocumentFragment（）


• DOMDocumentFragment :: appendXML（）

虽然你没有问过我会告诉你如何获取DOM节点的字符串表示，而不是整个DOM文档：

  //对于DOMDocument，您有
 $ dom-> save（$ file）; 
 $ string = $ dom-> saveXML（）; 

 $ dom-> saveHTML（）; 
 $ string = $ dom-> saveHTMLFile（$ file）; 

 //对于一个DOMElement，你有
 $ node = $ dom-> getElementById（'some-id'）; 

 $ string = $ node-> C14N（）; 
 $ node-> C14NFile（$ file）; 
 

这两种方法目前没有记录。

Is there a way to create a node that has mixed XML content in it with the PHP DOM?

If I understood you correctly you want something similar to innerHTML in JavaScript. There is a solution to that:

$xmlString = 'some <b>mixed</b> content';

$dom = new DOMDocument;
$fragment = $dom->createDocumentFragment();
$fragment->appendXML($xmlString);
$dom->appendChild($fragment);
// done

To sumarize. What you need is:

• DOMDocument::createDocumentFragment()
• DOMDocumentFragment::appendXML()

Although you didn't asked about it I'll tell you how to get the string representation of a DOM node as opposed to the whole DOM document:

// for a DOMDocument you have
$dom->save($file);
$string = $dom->saveXML();

$dom->saveHTML();
$string = $dom->saveHTMLFile($file);

// For a DOMElement you have
$node = $dom->getElementById('some-id');

$string = $node->C14N();
$node->C14NFile($file);

Those two methods are currently not documented.