錯誤在讀取XML文件

Question

我使用下面的代碼...

//定義我們想寫信給我們希望從

$filename = 'capital_one.xml'; 
    $url = "http://feeds.perfb.com/index.php/download?OEMAIL=chirag_gir@visitwembley.co.uk&PX=e90daba5ee2c6fd4d0c344fd61911f33&DISPLAYFORMAT=HEAD&REVERSEMAPXML=yes&PRODUCTDB_ID=294"; 



//this creates the file "feed download".xml and takes he contents from the URL and stores them into the file 
file_put_contents($filename,file_get_contents($url)); 

//create instance of XMLReader 
    $xmlReader = new XMLReader(); 

//read in xml file 
$xmlReader->open($filename); 

//loop to read in data 
while($xmlReader->read()) 
{ 
     //this initialises the xml parser 
     $dom = new DOMDocument(); 
     $domNode = $xmlReader->expand(); 
     $element = $dom->appendChild($domNode); 
     $domString = utf8_encode($dom->saveXML($element)); 
     $product = new SimpleXMLElement($domString); 

     //read in data 
     echo $product_code = $product->product_code; 


} 

下載的文件名和URL我得到了以下錯誤

開捕致命錯誤：參數1傳遞給的DOMNode ::使用appendChild（）必須的DOMNode

的實例

你能幫幫我嗎？

Answer 1

如果expand()未返回DOMNode，則會發生錯誤，並返回FALSE。