Question

我一直试图解析这些数据一段时间，但我并不真正理解simpleXML以及它如何存储/检索。我有以下xml：

   <ListOrderItemsResult>
    <OrderItems>
      <OrderItem>
        <QuantityOrdered>1</QuantityOrdered>
        <Title>Organic Chamomile &amp; Lavender Shea Butter CP Soap Making Kit 2 Lbs.</Title>
        <ItemPrice>
          <CurrencyCode>USD</CurrencyCode>
          <Amount>29.99</Amount>
        </ItemPrice>
        <ItemTax>
          <CurrencyCode>USD</CurrencyCode>
          <Amount>0.00</Amount>
        </ItemTax>
      </OrderItem>
      <OrderItem>
        <QuantityOrdered>1</QuantityOrdered>
        <Title>Eucalyptus &amp; Mint Organic Shea Butter CP Soap Making Kit 3 lbs.</Title>
        <ItemPrice>
          <CurrencyCode>USD</CurrencyCode>
          <Amount>32.99</Amount>
        </ItemPrice>
        <ItemTax>
          <CurrencyCode>USD</CurrencyCode>
          <Amount>0.00</Amount>
        </ItemTax>
        </ShippingDiscount>
      </OrderItem>
    </OrderItems>
    <AmazonOrderId>12134</AmazonOrderId>
  </ListOrderItemsResult>

我正在尝试将其转换为csv，每个OrderItem都是一行。列是：QuantityOrdered，Title，ItemPrice，ItemTax。到目前为止，我已经设法抓住了除ItemPrice和ItemTax之外的所有内容，因为它们有子节点，我不知道如何访问它们。

这是我的代码：

    $OrderItem = $xmlDocs->xpath('//a:OrderItem');

foreach（$ OrderItem为$ n）{

  foreach ($AmazonOrderId as $t) {
    $row[]=$t;
  }
   // Iterate through each child of <OrderItem> node
  $child = $xml->xpath('//a:OrderItem['.$i.']/*'); 



  foreach ($child as $value) {
    $row[] = $value;
  }
  print_r($row);



   $fs = fopen('141.csv', 'a');
   fputcsv($fs, $row);      

   $row = [];
   // Clean out array for next <item> (i.e., row)
   $i++;            // Move to next <item> (i.e., node position)

}

FCLOSE（$ FS）;

我有它的工作，但是因为我无法弄清楚如何找到孩子的孩子，所以没有任何东西出现在ItemPrice和ItemTax上。

TL; DR - 我正在尝试遍历每个OrderItem节点并获取每个子节点的值，如果子节点有子节点，我只想获取名为“Amount”的节点的值。

Answer 1

我想出了怎么做。我必须真正分解simplexml才能理解对象层是如何分层的，以便我能够弄清楚如何提取我想要的数据。希望这对某人有意义，但是当您尝试从SimpleXML对象中提取特定值时，您希望它在print_r（）时读取：

   SimpleXMLElement Object
  (
      [0] => 0 //0 being the value you want - you can now add this to whatever variable you want once you have it down to this. 
   )

以下是执行此操作的代码：

    //Iterate through the first node <OrderItem>
foreach ($OrderItem as $n) {           

  //Add the AmazonOrderId to the start of each line
  foreach ($AmazonOrderId as $t) {
    $row[]=$t;
  }

  $child = $xml->xpath('//a:OrderItem['.$i.']/*'); 
  // Iterate through each child of <OrderItem> node
  foreach ($child as $value) {
    //If the child has an attribute named <Amount>
    if($value->Amount[0]){
      //Iterate through and grab the value of <Amount> and post add to $row
      foreach ($value->Amount as $t) {
        $row[] = $t;
      } 
    } 
    //Else add the value to $row
    else { 
      $row[] = $value;
  }
}


$fs = fopen('141.csv', 'a');
fputcsv($fs, $row);
$row = [];
$i++;  
}
fclose($fs);

解析儿童的Simplexml儿童

1 个答案: