Having trouble targeting with DOM Xpath - php

Question

I know there are many questions here about DOM traversal with XPATH. I have done a good amount of research before bringing my question here, but I am still having an issue. I'm trying to pull the number of downloads for a given app on the android market. So for instance if the app were the stack exchange app, I would want to pull the numbers: 50,000 - 100,000 from this page:
https://play.google.com/store/apps/details?id=com.stackexchange.marvin
I am attempting to target the div with an itemprop of "numDownloads" to little avail. I have no trouble targeting other items on page I have tried (various classes, etc) but this specific item never returns results. I have checked to make sure the value is, in fact, in the source and not being inserted by JS. Here is my code:
// Load up the document so we can parse the dom
$dom = new DomDocument();
$dom->loadHTML($this->html);
// XPath so we can do some specific searches
$finder = new DomXPath($dom);
// Find all the number of downloads item on page
$installs = $finder->query("//*[#itemprop='numDownloads']");
echo "<pre>"; var_dump($installs); echo "</pre>";
foreach($installs as $install) {
echo "<pre>"; var_dump($install->nodeValue); echo "</pre>";
}
Any suggestions would be greatly appreciated!

Answer 1

Actually you are already on the right track.
$url = 'https://play.google.com/store/apps/details?id=com.stackexchange.marvin';
$contents = file_get_contents($url);
$dom = new DOMDocument();
#$dom->loadHTML($contents);
$finder = new DomXPath($dom);
$installs = $finder->query("//div[#itemprop='numDownloads']");
// directly point it to a div since it is a div
foreach($installs as $install) {
echo $install->nodeValue; // 50,000 - 100,000
}