父项外部的 XML 节点

Question

使用本文中提供的代码在 . 上进行 xml 分割节点，如下所示，当我通过添加“颜色”来扩展字符串时，它将结果放置在父项节点之外

    <?php
$xml_string = '<product><item><partno>abc123</partno><Compatbility>model1: 110C, 115C, 117C. model2: 1835C, 1840C. model3: 210C, 215C, 3240C.</Compatbility></item></product>';
$original_xml = simplexml_load_string($xml_string);
$data = json_decode(json_encode($original_xml), true);
$compatbility = $data['item']['Compatbility']; // get all compatibility values
// explode values
$compatbility = array_filter(array_map('trim', explode('.', $compatbility)));

$new_xml = new SimpleXMLElement('<product/>'); // initialize new xml
// add necessary values
$new_xml->addChild('item')->addChild('partno', $data['item']['partno']);
$new_xml->item->addChild('Compatbility');
// loop the values and add them as children
foreach($compatbility as $value) {
    $value = trim(preg_replace('/(\w+):/', '', $value));
    $new_xml->item->Compatbility->addChild('model', $value);
}
echo $new_xml->asXML(); // output as xml
?>

修改代码，为 xml 字符串添加颜色

    <?php
$xml_string = '<product><item><partno>abc123</partno><colour>black</colour><Compatbility>model1: 110C, 115C, 117C. model2: 1835C, 1840C. model3: 210C, 215C, 3240C.</Compatbility></item></product>';
$original_xml = simplexml_load_string($xml_string);
$data = json_decode(json_encode($original_xml), true);
$compatbility = $data['item']['Compatbility']; // get all compatibility values
// explode values
$compatbility = array_filter(array_map('trim', explode('.', $compatbility)));

$new_xml = new SimpleXMLElement('<product/>'); // initialize new xml
// add necessary values
$new_xml->addChild('item')->addChild('partno', $data['item']['partno']);
$new_xml->addChild ('colour', $data['item']['colour']);
$new_xml->item->addChild('Compatbility');
// loop the values and add them as children
foreach($compatbility as $value) {
    $value = trim(preg_replace('/(\w+):/', '', $value));
    $new_xml->item->Compatbility->addChild('model', $value);
}
echo $new_xml->asXML(); // output as xml
?>

以及 XML 输出

    <product>
<item>
<partno>abc123</partno>
<Compatbility><model>110C, 115C, 117C</model>
<model>1835C, 1840C</model>
<model>210C, 215C, 3240C</model>
</Compatbility>
</item>
<colour>black</colour>
</product>

正如您所看到的，它被放置在

</item>

之后，而它应该位于

</item>

内部

产品 xml 文件有 650 个条目，所以我不确定这是否正确

希望这是足够的信息 - 谢谢

Answer 1

方法

SimpleXMLElement::addChild

适用于父元素。

例如在你的（不起作用）的例子中：

$new_xml->addChild ('colour', $data['item']['colour']);

父元素位于

$new_xml

内。如果您不想将

<color>

子元素添加到该父元素，请选择其他元素作为父元素。最佳：选择正确的父元素。

访问 SimleXMLElement 是基本使用示例的一部分。

这里有一个关于如何使用 simplexml 将子元素添加到特定父元素的示例：

<?php

$xmlstr = <<<XML
<?xml version='1.0' standalone='yes'?>
<movies>
 <movie>
  <title>PHP: Behind the Parser</title>
  <characters>
   <character>
    <name>Ms. Coder</name>
    <actor>Onlivia Actora</actor>
   </character>
   <character>
    <name>Mr. Coder</name>
    <actor>El Act&#211;r</actor>
   </character>
  </characters>
  <plot>
   So, this language. It's like, a programming language. Or is it a
   scripting language? All is revealed in this thrilling horror spoof
   of a documentary.
  </plot>
  <great-lines>
   <line>PHP solves all my web problems</line>
  </great-lines>
  <rating type="thumbs">7</rating>
  <rating type="stars">5</rating>
 </movie>
</movies>
XML;

$movies = new SimpleXMLElement($xmlstr);

echo $movies->movie[0]->plot; # So, this language. It's like, a programming language. Or is it a ...

$movie = $movies->movie[0];

$movie->addChild('color', 'technicolor'); # added color child to the move element