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Php can';我搞不懂SimpleXML语法_Php_Xml_Simplexml - Fatal编程技术网

Php can';我搞不懂SimpleXML语法

Php can';我搞不懂SimpleXML语法,php,xml,simplexml,Php,Xml,Simplexml,我试图解析soap请求XML日志中的一些项,但似乎不知道如何访问SimpleXMLElement的内部。下面是我正在使用的XML的一个示例: <?xml version="1.0" encoding="UTF-8"?> <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://fedex.com/ws/rate/v9">

我试图解析soap请求XML日志中的一些项,但似乎不知道如何访问SimpleXMLElement的内部。下面是我正在使用的XML的一个示例:

<?xml version="1.0" encoding="UTF-8"?>
    <SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:ns1="http://fedex.com/ws/rate/v9">
     <SOAP-ENV:Body>
      <ns1:RateRequest>
       <ns1:WebAuthenticationDetail>
        <ns1:UserCredential>
         <ns1:Key>aaaaaaaaaaa</ns1:Key>
         <ns1:Password>aaaaaaaaaaaaaaaaaaa</ns1:Password>
        </ns1:UserCredential>
       </ns1:WebAuthenticationDetail>
       <ns1:ClientDetail>
        <ns1:AccountNumber>11111111</ns1:AccountNumber>
        <ns1:MeterNumber>88888888</ns1:MeterNumber>
       </ns1:ClientDetail>
       <ns1:TransactionDetail>
        <ns1:CustomerTransactionId>1</ns1:CustomerTransactionId>
       </ns1:TransactionDetail>
       <ns1:Version>
        <ns1:ServiceId>crs</ns1:ServiceId>
        <ns1:Major>9</ns1:Major>
        <ns1:Intermediate>0</ns1:Intermediate>
        <ns1:Minor>0</ns1:Minor>
       </ns1:Version>
       <ns1:ReturnTransitAndCommit>true</ns1:ReturnTransitAndCommit>
       <ns1:RequestedShipment>
        <ns1:ShipTimestamp>2013-08-06T12:39:26-04:00</ns1:ShipTimestamp>
        <ns1:DropoffType>REGULAR_PICKUP</ns1:DropoffType>
        <ns1:Shipper>
         <ns1:AccountNumber>11111111</ns1:AccountNumber>
         <ns1:Address>
          <ns1:StreetLines>24 Seaview Blvd</ns1:StreetLines>
          <ns1:City>Port Washington</ns1:City>
          <ns1:StateOrProvinceCode>NY</ns1:StateOrProvinceCode>
          <ns1:PostalCode>11050</ns1:PostalCode>
          <ns1:CountryCode>US</ns1:CountryCode>
         </ns1:Address>
        </ns1:Shipper>
        <ns1:Recipient>
         <ns1:Address>
          <ns1:StreetLines>1234 Fifth Street</ns1:StreetLines>
          <ns1:City>Sixton</ns1:City>
          <ns1:StateOrProvinceCode>AR</ns1:StateOrProvinceCode>
          <ns1:PostalCode>72712</ns1:PostalCode>
          <ns1:CountryCode>US</ns1:CountryCode>
         </ns1:Address>
        </ns1:Recipient>
        <ns1:ShippingChargesPayment>
         <ns1:Payor>
          <ns1:AccountNumber>11111111</ns1:AccountNumber>
          <ns1:CountryCode>US</ns1:CountryCode>
         </ns1:Payor>
        </ns1:ShippingChargesPayment>
        <ns1:RateRequestTypes>ACCOUNT</ns1:RateRequestTypes>
        <ns1:PackageCount>1</ns1:PackageCount>
        <ns1:PackageDetail>INDIVIDUAL_PACKAGES</ns1:PackageDetail>
        <ns1:RequestedPackageLineItems>
         <ns1:Weight>
          <ns1:Units>LB</ns1:Units>
          <ns1:Value>14</ns1:Value>
         </ns1:Weight>
         <ns1:Dimensions>
          <ns1:Length>20</ns1:Length>
          <ns1:Width>20</ns1:Width>
          <ns1:Height>9</ns1:Height>
          <ns1:Units>IN</ns1:Units>
         </ns1:Dimensions>
        </ns1:RequestedPackageLineItems>
       </ns1:RequestedShipment>
      </ns1:RateRequest>
     </SOAP-ENV:Body>
    </SOAP-ENV:Envelope>

我更喜欢使用XMLReader:

这是一个PHP表单示例,稍作修改即可满足您的需求:

function xmlParse($content,$wrapperName,$callback,$limit=NULL){
    $xml = new XMLReader();
    $xml->xml($content);

    $n=0;
    $x=0;
    while($xml->read()){
        if($xml->nodeType==XMLReader::ELEMENT && $xml->name == $wrapperName){
            while($xml->read() && $xml->name != $wrapperName){
                if($xml->nodeType==XMLReader::ELEMENT){
                    $name = $xml->name;
                    $xml->read();
                    $value = $xml->value;
                    if(preg_match("/[^\s]/",$value)){
                        $subarray[$name] = $value;
                    }
                }
            }
            if($limit==NULL || $x<$limit){
                if($callback($subarray)){
                    $x++;
                }
                unset($subarray);
            }
            $n++;
        }
    }
    $xml->close();
}

xmlParse($test,'SOAP-ENV:Envelope','callback');

function callback($array){
    var_dump($array);

}

关于

除非您使用的是XPath,否则不需要调用
registerXPathNamespace
。但是,您确实需要遍历SOAP
Body
元素,这意味着您需要考虑两个名称空间,而不仅仅是一个名称空间

最好不要依赖名称空间前缀,如
ns1
将来保持不变;保证的部分是
xmlns
属性中的实际URI。提高可读性的一种方法是为应用程序中使用的XML名称空间定义常量,并在必要时将这些常量传递给
->children()
->attributes()
方法

还请注意,
->children()
“选择”一个名称空间,直到另行通知,因此,一旦您选择了Fedex名称空间并遍历到
RateRequest
节点,您就可以访问元素,就好像名称空间不是问题一样(因为本文档中下面的所有内容都在同一名称空间中)

下面是一个完整的示例,展示了它的外观()

//为名称空间指定您自己的别名,不要依赖XML始终具有相同的别名
定义('NS_SOAP','http://schemas.xmlsoap.org/soap/envelope/');
定义('NS\U联邦快递费率','http://fedex.com/ws/rate/v9');
//解析XML
$sx=simplexml\u load\u字符串($xml\u字符串);
//$sx现在表示元素
//穿过皂体
$sx\u soap\u body=$sx->children(NS\u soap)->body;
//现在“切换”到Fedex名称空间,并从RateRequest节点开始
$sx_rate_request=$sx_soap_body->children(NS_FEDEX_rate)->rate request;
//现在按正常方式遍历,例如,遍历收件人的国家代码
//(echo不需要使用字符串转换,但这是一个很好的习惯)
echo(字符串)$sx\u rate\u request->requestedshipping->Recipient->Address->CountryCode;

好的,谢谢您的回复,但我并不想学习全新命令的全新语法。我用xmlreader做了一些尝试,虽然它让我可以用我给出的示例xml轻松地获得一些属性,但我还必须解析从fedex返回的响应,其中包含一些重复元素,我真的不想尝试找出另一个xml解析器来获取它们。问题是关于SimpleXML元素-有人吗?不要使用
print\u r
var\u dump
检查SimpleXML对象,它们会完全误导您。请尝试以下功能:
function xmlParse($content,$wrapperName,$callback,$limit=NULL){
    $xml = new XMLReader();
    $xml->xml($content);

    $n=0;
    $x=0;
    while($xml->read()){
        if($xml->nodeType==XMLReader::ELEMENT && $xml->name == $wrapperName){
            while($xml->read() && $xml->name != $wrapperName){
                if($xml->nodeType==XMLReader::ELEMENT){
                    $name = $xml->name;
                    $xml->read();
                    $value = $xml->value;
                    if(preg_match("/[^\s]/",$value)){
                        $subarray[$name] = $value;
                    }
                }
            }
            if($limit==NULL || $x<$limit){
                if($callback($subarray)){
                    $x++;
                }
                unset($subarray);
            }
            $n++;
        }
    }
    $xml->close();
}

xmlParse($test,'SOAP-ENV:Envelope','callback');

function callback($array){
    var_dump($array);

}
Array
(
    [ns1:Key] => aaaaaaaaaaa
    [ns1:Password] => aaaaaaaaaaaaaaaaaaa
    [ns1:AccountNumber] => 11111111
    [ns1:MeterNumber] => 88888888
    [ns1:CustomerTransactionId] => 1
    [ns1:ServiceId] => crs
    [ns1:Major] => 9
    [ns1:Intermediate] => 0
    [ns1:Minor] => 0
    [ns1:ReturnTransitAndCommit] => true
    [ns1:ShipTimestamp] => 2013-08-06T12:39:26-04:00
    [ns1:DropoffType] => REGULAR_PICKUP
    [ns1:StreetLines] => 1234 Fifth Street
    [ns1:City] => Sixton
    [ns1:StateOrProvinceCode] => AR
    [ns1:PostalCode] => 72712
    [ns1:CountryCode] => US
    [ns1:RateRequestTypes] => ACCOUNT
    [ns1:PackageCount] => 1
    [ns1:PackageDetail] => INDIVIDUAL_PACKAGES
    [ns1:Units] => IN
    [ns1:Value] => 14
    [ns1:Length] => 20
    [ns1:Width] => 20
    [ns1:Height] => 9
)
// Give your own aliases to namespaces, don't rely on the XML always having the same ones
define('NS_SOAP', 'http://schemas.xmlsoap.org/soap/envelope/');
define('NS_FEDEX_RATE', 'http://fedex.com/ws/rate/v9');

// Parse the XML
$sx = simplexml_load_string($xml_string);
// $sx now represents the <SOAP-ENV:Envelope> element

// Traverse through the SOAP Body
$sx_soap_body = $sx->children(NS_SOAP)->Body;

// Now "switch" to the Fedex namespace, and start with the RateRequest node
$sx_rate_request = $sx_soap_body->children(NS_FEDEX_RATE)->RateRequest;

// Now traverse as normal, e.g. to the Recipient's CountryCode
// (the string cast isn't necessary for echo, but is a good habit to get into)
echo (string)$sx_rate_request->RequestedShipment->Recipient->Address->CountryCode;