獲取在PHP

Question

使用童工值。對於該節點

<product> 
    <productId>531334</productId> 
    <productName>Mixed wrap platter - </productName> 
    <productImage>http://d25hqtnqp5nl24.cloudfront.net/images/products/9/LN_531334_BP_9.jpg</productImage> 
    <productUrl>http://www.waitrose.com/shop/DisplayProductFlyout?productId=75117&amp;?utm_source=infectious&amp;utm_medium=display&amp;utm_campaign=baby</productUrl> 
    <price>16.00</price> 
    <categoryid1>Groceries</categoryid1> 
    <categoryid2>Fresh</categoryid2> 
    <categoryid3>Fresh Party Food to Order</categoryid3> 
</product> 

我怎麼會得到基於兒童categoryid2的價值在整個產品節點XML文檔的祖先節點？

Answer 1

yoiu可以嘗試使用的SimpleXMLElement類是這樣的：

$xml_string = '<product> 
     <productId>531334</productId> 
     <productName>Mixed wrap platter - </productName> 
     <productImage>http://d25hqtnqp5nl24.cloudfront.net/images/products/9/LN_531334_BP_9.jpg</productImage> 
     <productUrl>http://www.waitrose.com/shop/DisplayProductFlyout?productId=75117&amp;?utm_source=infectious&amp;utm_medium=display&amp;utm_campaign=baby</productUrl> 
     <price>16.00</price> 
     <categoryid1>Groceries</categoryid1> 
     <categoryid2>Fresh</categoryid2> 
     <categoryid3>Fresh Party Food to Order</categoryid3> 
    </product>'; 

    $xml = new SimpleXMLElement($xml_string); 
    foreach ($xml->product as $p){ 
     echo'<p>productID: '.$p->productId.'</p>'; 
     //you can do it for every value inside product 
    }