Hi guys. Okay, well I've been at this for a while and I cannot seem to figure it out. Basically, I have a simpleXML PHP file that I'm trying to"parse" (I guess it's called). All I want to do is get some info from an API XML site and display it on my site.

Anyways, I have this code and my page is blank. Please help?

$html = "";
$url = "http://isbndb.com/api/books.xml?access_key=MCIJARNT&index1=isbn&value1=9780439023528";
$xml = simplexml_load_file($url);
for($i = 0; $i < 10; $i++){

    $title = $xml->Title[$i];
    $html .= "<h1>$title</h1>";

echo $html;
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