获得从XML PHP5内容
-
23-09-2019 - |
题
I'm工作的一个paymentsolution,需要一些帮助与PHP。 I'm做一个HTTPRequest,并响应我会得到一些XML。的XML可能看起来像这样:
<?xml version="1.0" encoding="utf-8" ?>
<payer>
<purchase_list>
<freeform_purchase>
<line_number>1</line_number>
<description>description</description>
<price_including_vat>12</price_including_vat>
<vat_percentage>
15
</vat_percentage>
<quantity>10</quantity>
</freeform_purchase>
</purchase_list>
<payment_urls>
<auth_url>authurl</auth_url>
<settle_url>settleurl</settle_url>
</payment_urls>
</payer>
基本上我想要做的是让来自标签的内容,并将它们保存在字符串中。
我尝试这样:
$order = '<?xml version="1.0" encoding="utf-8" ?>
<payer>
<purchase_list>
<freeform_purchase>
<line_number>1</line_number>
<description>description</description>
<price_including_vat>12</price_including_vat>
<vat_percentage>
15
</vat_percentage>
<quantity>10</quantity>
</freeform_purchase>
</purchase_list>
<payment_urls>
<auth_url>authurl</auth_url>
<settle_url>settleurl</settle_url>
</payment_urls>
</payer>';
$orderXML = new DOMDocument();
$orderXML->load($order);
$payerXML = $orderXML->getElementsByTagName( 'payer' );
$purchase_listXML = $orderXML->getElementsByTagName( 'purchase_list' );
$freeform_purchaseXML = $orderXML->getElementsByTagName( 'freeform_purchase' );
$linenumberXML = $orderXML->getElementsByTagName( 'line_number' );
$descriptionXML = $orderXML->getElementsByTagName( 'description' );
$price_inc_vatXML = $orderXML->getElementsByTagName( 'price_including_vat' );
$vat_percentageXML = $orderXML->getElementsByTagName( 'vat_percentage' );
$quantityXML = $orderXML->getElementsByTagName( 'quantity' );
$settle_urlXML = $orderXML->getElementsByTagName( 'settle_url' );
$auth_urlXML = $orderXML->getElementsByTagName( 'auth_url' );
$theLineNumber = $linenumberXML->item(0)->nodeValue;
$theValue = $descriptionXML->item(0)->nodeValue;
$freeform_price = $price_inc_vatXML->item(0)->nodeValue;
$freeform_vat = $vat_percentageXML->item(0)->nodeValue;
$freeform_quantity = $quantityXML->item(0)->nodeValue;
$Settle_url = $settle_urlXML->item(0)->nodeValue;
$Auth_url = $auth_urlXML->item(0)->nodeValue;
echo 'thLineNumber - ' . $theLineNumber;
echo $theValue;
echo $freeform_price;
echo $freeform_vat;
echo $freeform_quantity;
echo $Settle_url;
echo $Auth_url;
但显然也有一些是错误的,因为它不需额外回声什么..建议?
解决方案
如果你只是想为阅读从XML字符串的一些数据,最简单的方法很可能是使用的 SimpleXML的和不 DOM - DOM非常适合当谈到编写XML,但对于阅读,SimpleXML的是非常容易与工作。
例如,你可以使用这样的事情作为一个出发点:
点击注意我用了 simplexml_load_string
功能加载XML字符串。
$string = <<<STR
<?xml version="1.0" encoding="utf-8" ?>
<payer>
<purchase_list>
<freeform_purchase>
<line_number>1</line_number>
<description>description</description>
<price_including_vat>12</price_including_vat>
<vat_percentage>
15
</vat_percentage>
<quantity>10</quantity>
</freeform_purchase>
</purchase_list>
<payment_urls>
<auth_url>authurl</auth_url>
<settle_url>settleurl</settle_url>
</payment_urls>
</payer>
STR;
$xml = simplexml_load_string($string);
echo intval($xml->purchase_list->freeform_purchase->price_including_vat) . '<br />';
echo (string)$xml->payment_urls->auth_url . '<br />';
这将使您的输出如下:
12
authurl
基本上,用SimpleXML,XML树可作为一个对象 - 不是所述XML存在于树,因为它是根的根节点;这就是为什么我没有包括payer
访问的数据。
其他提示
您可能看的SimpleXML - 这是很多,更直接的然后使用DOM文档。它会给你一个解析的对象形式的XML数据返回,这样就可以做这样的事情:
$order = '<?xml version="1.0" encoding="utf-8" ?>
<payer>
<purchase_list>
<freeform_purchase>
<line_number>1</line_number>
<description>description</description>
<price_including_vat>12</price_including_vat>
<vat_percentage>
15
</vat_percentage>
<quantity>10</quantity>
</freeform_purchase>
</purchase_list>
<payment_urls>
<auth_url>authurl</auth_url>
<settle_url>settleurl</settle_url>
</payment_urls>
</payer>';
// Alternative version: $xml = new SimpleXMLElement($order);
// (completely equivalent to the below line)
$xml = simplexml_load_string($order);
$vat_pct = intval($xml->purchase_list->freeform_purchase->vat_percentage);
尝试使用simplexml_load_string($字符串); 然后只是做一个foreach用它像这样
$xml = simplexml_load_string($string);
foreach($xml as $item)
{
echo $item->description; // would print the description
// continiu your logic here
}
不要使用DOM的那种东西,使用的SimpleXML 一>代替。
$payer = simplexml_load_string($order);
$freeform_purchase = $payer->purchase_list->freeform_purchase;
echo "Line number: ", $freeform_purchase->line_number, "\n";
echo "Description: ", $freeform_purchase->description, "\n";
echo "Auth URL: ", $payer->payment_urls->auth_url, "\n";
echo "Settle URL: ", $payer->payment_urls->settle_url, "\n";
// if you use the values as strings, cast them as strings
$description = (string) $freeform_purchase->description;
// if you have to use the values for math, cast them as integers
$vat_percentage = (int) $freeform_purchase->vat_percentage;
<强>在这里是与DOM的溶液强>
首先建议:组error_reporting(-1)
看到任何潜在的错误。如果你这样做,你会看到PHP提高人们注意的几个问题。
Notice: Trying to get property of non-object
为->item(0)
呼叫到的DOMNodeList元件。的相当简单的解决方案是使用
$orderXML->loadXml($order);
代替load()
的,因为load
从文件中装载XML文档。
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