For Loop輸出重複的XML值

Question

我正在通過simple_load_function（）從xml文件中讀取新的xml數據。我輸出的'submitterId'和'pid'值正在重複。 「標題」值是確定的。

我認爲問題出在循環內。有人可以解釋/協助這種情況發生的原因嗎？這裏是你可以看到輸出的一個working demo。

XML文件：堆疊的test.xml

<?xml version="1.0" encoding="utf-8"?> 
<ContentEnvelope> 
    <ContentBody> 

    <Review> 
     <Headline>Great product</Headline> 
     <ReviewedBy> 
     <UniqueId>der_11111111</UniqueId> 
     </ReviewedBy> 
     <ReviewedKey> 
     <Key>cover_creme</Key> 
     </ReviewedKey> 
    </Review> 

    <Review> 
     <Headline>Worst product</Headline> 
     <ReviewedBy> 
     <UniqueId>der_88888888</UniqueId> 
     </ReviewedBy> 
     <ReviewedKey> 
     <Key>setting_powder</Key> 
     </ReviewedKey> 
    </Review> 

    </ContentBody> 
</ContentEnvelope> 

CODE：

error_reporting(0); 

$devices = array(); 
$xml = simplexml_load_file('stack-test.xml'); 

//// Loops through xml to <Headline> tag //// 

foreach($xml->ContentBody->Review as $item){ 
    $device = array(); 

    foreach($item as $key => $value){ 
    $device[(string)$key] = (string)$value; 
    } 
    $devices[] = $device; 
} 
$devices2 = array(); 


//// Loops through xml to <ReviewedBy> tag //// 

foreach($xml->ContentBody->Review->ReviewedBy as $item2) { 
    $device2 = array(); 

    foreach($item2[1] as $key2 => $value2){ 
     $device2[(string)$key2] = (string)$value2; 
    } 
    $devices2[] = $device2; 
} 
$devices3 = array(); 

//// Loop through xml to <ReviewedKey> tag //// 

foreach($xml->ContentBody->Review->ReviewedKey as $item3) { 
    $device3 = array(); 

    foreach($item3 as $key3 => $value3){ 
     $device3[(string)$key3] = (string)$value3; 
    } 
    $devices3[] = $device3; 
} 

//HEADLINE 
foreach($devices as $key => $val){ 
    $headline = $val[Headline]; 

    //UNIQUE ID 
    foreach($devices2 as $key => $val){ 
     $uniqueId = $val[UniqueId]; 
    } 

    //KEY 
    foreach($devices3 as $key => $val){ 
     $reviewedKey = $val[Key]; 
    } 

    //// Writes Headline DATA ///// 

    $location_xml=new XMLWriter(); 
    $location_xml->openMemory(); 

    $location_xml->startElement("object-attribute"); 
    $location_xml->writeAttribute("attribute-id", "headline"); 
    $location_xml->text($headline); 
    $location_xml->endElement(); 
    echo $location_xml->outputMemory(true); 

    //// Writes Unique ID DATA //// 

    $uniqueId_xml=new XMLWriter(); 
    $uniqueId_xml->openMemory(); 

    $uniqueId_xml->startElement("object-attribute"); 
    $uniqueId_xml->writeAttribute("attribute-id", "submitterId"); 
    $uniqueId_xml->text($uniqueId); 
    $uniqueId_xml->endElement(); 
    echo $uniqueId_xml->outputMemory(true); 

    //// Writes Key DATA //// 

    $reviewedKey_xml=new XMLWriter(); 
    $reviewedKey_xml->openMemory(); 

    $reviewedKey_xml->startElement("object-attribute"); 
    $reviewedKey_xml->writeAttribute("attribute-id", "pid"); 
    $reviewedKey_xml->text($reviewedKey); 
    $reviewedKey_xml->endElement(); 
    echo $reviewedKey_xml->outputMemory(true); 
}//// Closes loop //// 

//// OUTPUT：submitterId和PID值被複制!!!! ////

<object-attribute attribute-id="headline">Great product</object-attribute> 
<object-attribute attribute-id="submitterId">der_11111111</object-attribute 
<object-attribute attribute-id="pid">cover_creme</object-attribute> 

<object-attribute attribute-id="headline">Worst product</object-attribute> 
<object-attribute attribute-id="submitterId">der_11111111</object-attribute> 
<object-attribute attribute-id="pid">cover_creme</object-attribute> 

Answer 1

終於想出了這一個。在分開我的循環之後，我意識到我沒有正確地生成XML，因爲寫入XML的代碼不在正確的循環中。以下是解決方案。這是一個working demo。

foreach($xml->ContentBody->Review as $item){ 
    foreach($item->Headline as $item2){ 

     ///////// Writes Headline DATA ////////// 
     $location_xml=new XMLWriter(); 
     $location_xml->openMemory(); 
     $location_xml->startElement("object-attribute"); 
     $location_xml->writeAttribute("attribute-id", "headline"); 
     $location_xml->text($item2); 
     $location_xml->endElement(); 
     echo $location_xml->outputMemory(true); 
    } 

    foreach($item->ReviewedBy as $item2) { 
     foreach($item2 as $key2 => $value2){ 
      if($key2=='UniqueId'){ 

       ///////// Writes Submitter ID DATA ////////// 
       $uniqueId_xml=new XMLWriter(); 
       $uniqueId_xml->openMemory(); 
       $uniqueId_xml->startElement("object-attribute"); 
       $uniqueId_xml->writeAttribute("attribute-id", "submitterId"); 
       $uniqueId_xml->text($value2); 
       $uniqueId_xml->endElement(); 
       echo $uniqueId_xml->outputMemory(true); 
      } 
     } 
    } 

    foreach($item->ReviewedKey as $pid) { 
     foreach($pid as $key2 => $value3){ 
      if($key2=='Key'){ 

       ///////// Writes Product ID DATA ////////// 
       $reviewedKey_xml=new XMLWriter(); 
       $reviewedKey_xml->openMemory(); 
       $reviewedKey_xml->startElement("object-attribute"); 
       $reviewedKey_xml->writeAttribute("attribute-id", "pid"); 
       $reviewedKey_xml->text($value3); 
       $reviewedKey_xml->endElement(); 
       echo $reviewedKey_xml->outputMemory(true); 
      } 
     } 
    }  
}