从特定 XML 节点获取信息

Question

我正在尝试读取 3 个特定 XML 节点（bill_codes、sent_total、clicked_unique_total）的值我已经做了很多测试，我觉得就像我需要一个有新眼光的人来看待这个并帮助我找出我不再看到的东西..

我正在使用 simplexml_load_string 函数将 XML 加载到数组中。

这是我目前的代码：

$xml = simplexml_load_string($content);
echo $xml->methodResponse->item->responseData->message_data->message->bill_codes;

这是我正在使用的 XML（来自 API 调用，所以我无法访问 modifying/updating XML 的结构）

<?xml version="1.0" encoding="utf-8"?>
<methodResponse>
  <item>
    <methodName>
      <![CDATA[legacy.message_stats]]>
    </methodName>
    <responseData>
      <message_data>
        <message id="2345456">
          <message_subject>
            <![CDATA[#1 Item You Should Be Hoarding in 2015]]>
          </message_subject>
          <date_sent>2014-12-18 04:01:34</date_sent>
          <message_notes>
            <![CDATA[Sample Notes]]>
          </message_notes>
          <withheld_total>0</withheld_total>
          <globally_suppressed>0</globally_suppressed>
          <suppressed_total>0</suppressed_total>
          <bill_codes>
            <![CDATA[8578]]>
          </bill_codes>
          <sent_total>734273</sent_total>
          <link_append_statement/>
          <timezone/>
          <message_name>
            <![CDATA[Sample Message Name]]>
          </message_name>
          <optout_total>4054</optout_total>
          <optout_rate_total>0.55</optout_rate_total>
          <clicked_total>5363</clicked_total>
          <clicked_unique>4350</clicked_unique>
          <clicked_rate_unique>13.71</clicked_rate_unique>
          <campaign_id>228640</campaign_id>
          <campaign_type>C</campaign_type>
          <included_groups>
            <segment id="1208891">
              <![CDATA[Segment Name Here]]>
            </segment>
          </included_groups>
          <included_smartlists></included_smartlists>
          <excluded_groups></excluded_groups>
          <excluded_smartlists></excluded_smartlists>
          <attributes></attributes>
          <link id="40278272">
            <has_name>1</has_name>
            <clicked_unique_total>4350</clicked_unique_total>
          </link>
        </message>
      </message_data>
    </responseData>
    <responseNum>
      <![CDATA[1]]>
    </responseNum>
    <responseCode>
      <![CDATA[201]]>
    </responseCode>
  </item>
</methodResponse>

Answer 1

无需包含父项，只需从 ->item:

开始

echo $xml->item->responseData->message_data->message->bill_codes;

Sample Output

从特定 XML 节点获取信息

Getting info from a specific XML Node

php

xml

simplexml