DOMElement empty nodeValue

Question

I have a project where I need to parse a xml page and pick out some data. The domDocument class seems perfect and I tried a few basic tests to see if it would do what I wanted.

Here is my code for the moment:

$dom = new domDocument;
$html = file_get_contents('http://wadmag.com/feed.xml');
$previous_value = libxml_use_internal_errors(TRUE);
$dom->loadHTML("$html");
libxml_clear_errors(); //This here is to clear the errors caused by the page not
libxml_use_internal_errors($previous_value); // being proper html

$links = $dom->getElementsByTagName('item');
echo "Found : ".$links->length. " items";   

foreach ($links as $link) {
    echo $link->nodeValue."<br>";
}

Now the problem is that when I load the page, I get the message "Found: 21 items", meaning that the getElementsByTagName returned a list, but when I try to display the contents of the list, nothing is displayed, as if the nodeValue was empty.

The even weirder thing is that if I replace "link" in the getElementsByTagName by title or description, it displays everything as it should. Can't seem to understand why, the only difference I can see is that and might be proper html whereas is not.

Answer 1

如果解析XML，请使用$dom->loadXML($response) $dom->loadHtml($response)代替$dom->loadHtml($response)