回聲XML子節點的值

Question

我從一個API的XML響應如下：

$response = <<<XML 
<response uri="/crm/private/xml/Leads/insertRecords"> 
<result> 
    <message>Record(s) updated successfully</message> 
    <recorddetail> 
    <fl val="Id">1203498000000109001</fl> 
    <fl val="Created Time">2014-09-24 09:19:44</fl> 
    <fl val="Modified Time">2014-09-24 11:38:08</fl> 
    <fl val="Created By"><!--[CDATA[Brydges]]--></fl> 
    <fl val="Modified By"><!--[CDATA[Brydges]]--></fl> 
    </recorddetail> 
</result> 
</response> 
XML; 

如果我想要的消息，這似乎很容易使用

$xml_response = new SimpleXMLElement($response); $message = $xml_response->result->message; echo $message;

但是，我試圖檢索<fl val="id">行的內容，例如1203498000000109001.

我已經看過許多問題上的SO，並嘗試了所有那些建議，但沒有成功如下：

//using xpath with SimpleXMLElement 
$xml_response = new SimpleXMLElement($response); 
$zoho_id = $xml_response->xpath('/response/result/recorddetail/fl[@val="Id"]'); 
echo $zoho_id; 

//using xpath with simplexml_load_string 
$xml_response = new simplexml_load_string($response); 
$zoho_id = $xml_response->xpath('/response/result/recorddetail/fl[@val="Id"]'); 
echo $zoho_id; 

//using a foreach loop 
$xml_response = new SimpleXMLElement($response); 
foreach ($xml_response->result->recorddetail->fl as $fl) { 
if ((string) $fl['val'] == 'Id') { 
    echo (string) $fl; 
    } 
} 

// using a foreach loop and then a switch case over the val attribute value to only echo Id 
foreach ($xml_response->result->recorddetail->fl as $fl) { 
    switch((string) $fl['val']) { // Get attributes as element indices 
    case 'Id': 
     echo (string)$fl, ' is the Id'; 
     break; 
    } 
} 

任何建議如何我可以檢索我需要的內容？

FOLLOWING GHOSTS的建議：

的print_r（$ DOC）返回：

SimpleXMLElement Object ( 
    [@attributes] => Array ( 
     [uri] => /crm/private/xml/Leads/insertRecords 
    ) 
    [result] => SimpleXMLElement Object ( 
     [message] => Record(s) updated successfully 
     [recorddetail] => SimpleXMLElement Object ( 
      [FL] => Array ( 
       [0] => 1203498000000109001 
       [1] => 2014-09-24 09:19:44 
       [2] => 2014-09-24 13:06:37 
       [3] => SimpleXMLElement Object ( 
        [@attributes] => Array ( 
         [val] => Created By 
        ) 
       ) 
       [4] => SimpleXMLElement Object ( 
        [@attributes] => Array ( 
         [val] => Modified By 
        ) 
       ) 
      ) 
     ) 
    ) 
) 

Answer 1

第一xpath的部分已經是正確的，所述的xpath結果返回一個數組，所以把它作爲這樣：

$xml_response = new SimpleXMLElement($response); 
$zoho_id = (string) $xml_response->xpath('/response/result/recorddetail/fl[@val="Id"]')[0]; 
                        //^
echo $zoho_id; 
// assuming you're expecting one result 

如果您有多個節點，則可以使用循環：

$zoho_id = $xml_response->xpath('/response/result/recorddetail/fl[@val="Id"]'); 
foreach($zoho_id as $node) { 
    $id = (string) $node; 
    echo $id; 
} 

或者：

$xml_response = new SimpleXMLElement($response); 
$recorddetail = $xml_response->xpath('/response/result/recorddetail'); 
foreach($recorddetail as $node) { 
    $id_node_val = (string) $node->FL[0]; 
    echo $id_node_val; 
}