如何使用PHP解析此XML字符串

Question

解析以下XML字符串時遇到困難。 當使用SimpleXMLElement或simplexml_load_string時，我收到許多錯誤。 我正在運行PHP版本5.5.20。

<?xmlversion="1.0"encoding="utf-8"?> 
<Responsetype="NAK"> 
<ResponseCode>231</ResponseCode> 
<Description>Billingstate/provinceisrequired.</Description> 
<Reference>VSTMUAS:060215CJM-12</Reference> 
<TransactionID>1433251975406510979</TransactionID> 
<ProcessingTime>0.590634</ProcessingTime> 
</Response> 

當我運行下面的代碼：

$xml = simplexml_load_string($myXMLData); 
print_r($xml); 

我收到以下錯誤：

Warning: simplexml_load_string(): Entity: line 1: parser warning : xmlParsePITarget: invalid name prefix 'xml' in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): <?xmlversion="1.0"encoding="utf-8"?> in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string():^in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): Entity: line 1: parser error : ParsePI: PI xmlversion space expected in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): <?xmlversion="1.0"encoding="utf-8"?> in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string():^in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): Entity: line 2: parser error : error parsing attribute name in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): <Responsetype="NAK"> in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string():^in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): Entity: line 2: parser error : attributes construct error in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): <Responsetype="NAK"> in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string():^in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): Entity: line 2: parser error : Couldn't find end of Start Tag Responsetype line 2 in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): <Responsetype="NAK"> in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string():^in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): Entity: line 2: parser error : Extra content at the end of the document in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string(): <Responsetype="NAK"> in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

Warning: simplexml_load_string():^in /home/pmotrad/public_html/content/CalvinsTesting.php on line 18 

請幫我undertand我在做什麼錯。

感謝，

卡爾文

Answer 1

字符串中包含格式不正確的XML。

這是你的XML修復它

<?xml version="1.0" encoding="utf-8"?> 
<Response type="NAK"> 
    <ResponseCode>231</ResponseCode> 
    <Description>Billingstate/provinceisrequired.</Description> 
    <Reference>VSTMUAS:060215CJM-12</Reference> 
    <TransactionID>1433251975406510979</TransactionID> 
    <ProcessingTime>0.590634</ProcessingTime> 
</Response> 

嘗試與該XML後，你會得到：

SimpleXMLElement Object ([@attributes] => Array ([type] => NAK) [ResponseCode] => 231 [Description] => Billingstate/provinceisrequired. [Reference] => VSTMUAS:060215CJM-12 [TransactionID] => 1433251975406510979 [ProcessingTime] => 0.590634)