尝试使用PHP DOM读取XML节点 [英] Trying to read XML nodes using PHP DOM

问题描述

我正在尝试阅读以下XML字符串中的相关节点，最后显示：

flerror：0

来自目录的消息：Pings是
转发到11个服务！

 <？xml version =1.0？> 
< methodResponse> 
< params> 
< param> 
< value> 
< struct> 
< member>< name> flerror< / name>< value>< boolean> 0< / boolean>< / value>< / member> 
< member>< name> message< / name>< value>< string>正在转发到11个服务的P< / string>< / value>< / member> 
< / struct> 
< / value> 
< / param> 
< / params> 
< / methodResponse> 
  

我尝试使用：

  $ doc = new DOMDocument（）; 
 $ doc-> loadXML（$ xmlString）; 
 $ value = $ doc-> getElementsByTagName（value）; 
 $ value = $ value-> item（0） - > nodeValue; 
  

并获得：

 <峰; br> flerror0<峰; br> 
 messagePings转发到11个服务！ 
  

然后我可以使用字符串解析函数来分离字符串，但是我需要一个更清洁的解决方案。

任何建议的改进，可能会避免额外的字符串解析？

谢谢！

解决方案

我没有太多的经验与 DOMDocument 。但是看起来你的xml很简单，我建议使用简单的xml 。这是我写的

 <？php 
 $ xmlString =<？xml version = \ 1.0\？> 
< methodResponse> 
< params> 
< param> 
< value> 
< struct> 
< member>< name> flerror< / name>< value>< boolean> 0< / boolean>< / value>< / member> 
< member>< name>消息< / name>< value>< string>正在转发到11个服务的P< / string>< / value>< / member> 
< / struct> 
& / value> 
< / param> 
< / params> 
< / methodResponse> 
; 
 
 $ xml = simplexml_load_string（$ xmlString）; 
 echo'< pre>'; 
 print_r（$ xml-> params-> param-> value）; 
 echo'< / pre>'; 
 
？> 
  

并获得

 code> SimpleXMLElement Object 
（
 [struct] => SimpleXMLElement Object 
（
 [member] => Array 
（
 [ 0] => SimpleXMLElement Object 
（
 [name] => flerror 
 [value] => SimpleXMLElement对象
（
 [boolean] => 0 
）
 
）
 
 [1] => SimpleXMLElement对象
（
 [name] =>消息
 [value] => SimpleXMLElement对象
（
 [string] => PING被转发到11个服务！
 ）
 
）
 
）
 
）
 
）
  pre> 
 
 
我认为现在访问每个节点会更容易。 
 
I'm trying to read the relevant nodes in the following XML string, to finally display:

  
flerror:0
  
  
Message from directory:Pings being
  forwarded to 11 services!


<?xml version="1.0"?>
<methodResponse>
  <params>
    <param>
      <value>
        <struct>
  <member><name>flerror</name><value><boolean>0</boolean></value></member>
  <member><name>message</name><value><string>Pings being forwarded to 11 services!</string></value></member>
</struct>
      </value>
    </param>
  </params>
</methodResponse>
I tried using:
$doc = new DOMDocument();
$doc->loadXML($xmlString);
$value = $doc->getElementsByTagName("value");
$value = $value->item(0)->nodeValue;
and obtained:
<br>flerror0<br>
  messagePings being forwarded to 11 services!
I can then use string parsing functions to separate out the strings, but that I need a cleaner solution.

Any suggested improvements that will possibly avoid the additional string parsing?

Thanks!
解决方案
I have not much experience with DOMDocument. But looks like your xml is small and simple, I would suggest to use simple xml. Here is what I have wrote
<?php
$xmlString = "<?xml version=\"1.0\"?>
<methodResponse>
  <params>
    <param>
      <value>
        <struct>
  <member><name>flerror</name><value><boolean>0</boolean></value></member>
  <member><name>message</name><value><string>Pings being forwarded to 11 services!</string></value></member>
</struct>
      </value>
    </param>
  </params>
</methodResponse>
";

$xml = simplexml_load_string($xmlString);
echo '<pre>';
print_r($xml->params->param->value);
echo '</pre>';

?>
And got
SimpleXMLElement Object
(
    [struct] => SimpleXMLElement Object
        (
            [member] => Array
                (
                    [0] => SimpleXMLElement Object
                        (
                            [name] => flerror
                            [value] => SimpleXMLElement Object
                                (
                                    [boolean] => 0
                                )

                        )

                    [1] => SimpleXMLElement Object
                        (
                            [name] => message
                            [value] => SimpleXMLElement Object
                                (
                                    [string] => Pings being forwarded to 11 services!
                                )

                        )

                )

        )

)
I think now it will be much easier to access every node. 

                        
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