我如何循环这个 xml 结构并在 PHP 中从它创建一个数组

Question

我有一个 xml 节点，其结构如下：

<ItemDimensions>
    <Height Units="hundredths-inches">42</Height>
    <Length Units="hundredths-inches">752</Length>
    <Weight Units="hundredths-pounds">69</Weight>
    <Width Units="hundredths-inches">453</Width>
</ItemDimensions>

我如何循环这个 XML 并将属性、单位和值放入一个数组中？

例如我想构建一个如下所示的数组：

$itemDimensions = array(
    array('height','hundredths-inches',24),
    array('length,','hundredths-inches',752), 
    array('weight','hundredths-pounds',69),
    array('width','hundredths-inches',453),
    )

Answer 1

这应该没问题：

<?php 

$x = '<ItemDimensions>
       <Height Units="hundredths-inches">42</Height>
       <Length Units="hundredths-inches">752</Length>
       <Weight Units="hundredths-pounds">69</Weight>
       <Width Units="hundredths-inches">453</Width>
      </ItemDimensions>';

$xml = new DOMDocument();
$xml->loadXML($x);
$dimensions = $xml->getElementsByTagName('ItemDimensions');

$array = array();

$i = 0;
while(is_object($node = $dimensions->item($i))){
    foreach($node->childNodes as $n){
        if($n->nodeType === XML_ELEMENT_NODE) {
            $array[] = array($n->nodeName,$n->getAttribute('Units'),$n->nodeValue);
        }        
    }
    $i++;
}
var_dump($array);
?>