试图获取非对象的属性 - > xml

问题描述：

I'm retrieving an xml:

$xml = file_get_contents($query);

echo $xml->Email;
echo $xml[0]->Email;

The xml (echo $xml) looks like this:

<GetUserInfo>
<Customer>TestUser</Customer>
<Email>test@test.com</Balance>
</GetUserInfo>

But both those approaches give the following error:

Notice: Trying to get property of non-object in test.php on line 86

Notice: Trying to get property of non-object in test.php on line 87

How can I get the value of Email and Customer?

我正在检索xml： p>

  $ xml =  file_get_contents（$ query）; 
 
echo $ xml-＆gt;电子邮件; 
echo $ xml [0]  - ＆gt;电子邮件; 
  code>  pre> 
 
  xml（echo  $ xml）如下所示： p> 
 
 
 ＆lt; GetUserInfo＆gt; 
＆lt; Customer＆gt; TestUser＆lt; / Customer＆gt; 
＆lt; Email＆gt; test@test.com< / Balance＆gt; \  n＆lt; / GetUserInfo＆gt; 
  code>  pre> 
 
 但这两种方法都会出现以下错误： p> 
 
 
 注意：试图获取 第86行的test.php中非对象的属性
 
注意：尝试在第87行的test.php中获取非对象的属性
  code>  pre> 
 
 如何 我可以获得电子邮件和客户的价值吗？ p> 
  div>

答

file_get_contents() returns the file content, not an object. You can only use preg_match if you want to stick to string content (totally not advised):

preg_match('~<Email>([^<]+)</Email>~i', file_get_contents($__filePath__), $emails);

I recommend using DOMDocument and DOMXPath (code not tested):

$XMLDoc = new DOMDocument();
$XMLDoc->load($__filePath__);
$XPath = new DOMXPath($XMLDoc);
$emails = $XPath->query('//email');
foreach ($emails as $email)
    var_dump($email->nodeValue);

You might use another Xpath expression like //email[1] or /GetUserInfo/Email The foreach may also be replaced by $email = reset($emails); if you only want the first mail.

答

Your $xml is a string. $xml-> accesses a property of an object. That is not compatible. A php string is not an object.

You may want to use var_dump() instead of echo() to see all the details of your variables.

A simple string to object convertor is simplexml_load_string()

$xml='
<GetUserInfo>
<Customer>TestUser</Customer>
<Email>test@test.com</Email>
</GetUserInfo>
';

var_dump($xml);
$Xml = simplexml_load_string($xml);
var_dump($Xml);
echo($Xml->Email);

试图获取非对象的属性 - > xml

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