PHP 如何使用 PHP 读取字符串中的 XML 子节点值?

问题描述：

我有一个从其他服务器动态获取其值的字符串.字符串的值为

I have a String which gets its value dynamically from other server. Value of string is

$string1 = '<?xml version="1.0" encoding="utf-8"?>
<soap:Envelope xmlns:soap="http://schemas.microsoft.com/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <soap:Body>
    <AuthenticateUserResponse xmlns="http://microsoft.com/xml/namespace/2012/04">
      <Authenticator>AE1001</Authenticator>
    </AuthenticateUserResponse>
  </soap:Body>
</soap:Envelope>';

我的问题是，通常我们使用 *$xml = simplexml_load_file("test1.xml");* 来加载 XML 文件，但在我的要求中它是一个 String，我怎么读这个字符串值并提取子节点及其值?示例:

My Question is, generally we use *$xml = simplexml_load_file("test1.xml");* to load XML files, but here in my requirement it is a String, how can i read this String value and extract the child node and its value? Example:

以及它的值AE1001"?

有没有办法把它放到数组中?这样我就可以轻松打印出它的节点值?

Is there a way to put this into Array? so that its easy for me to print out its node value?

答

同时学习 DOMDocument 和 XPath.真的很值得花时间.

Also learn DOMDocument and XPath. It really worth the time.

$doc = new DOMDocument;
$doc->loadXML($string1);

echo $doc->getElementsByTagName('Authenticator')->item(0)->nodeValue; // AE1001

PHP 如何使用 PHP 读取字符串中的 XML 子节点值?

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