Q:

DOMXPath var_dump: "(object value omitted)"

$store = curl_exec($ch); // Returns a page of HTML

$doc = new DOMDocument();
$doc->loadHTML($store);
$xpath = new DOMXpath($doc);

Vardump $xpath:
object(DOMXPath)#2 (1) { 
    ["document"] => string(22) "(object value omitted)" 
} 

What is wrong here?  I'm trying to use xpath on the HTML code to extract info. 
object(DOMDocument)#1 (34) {
    ["doctype"]         => string(22) "(object value omitted)" 
    ["implementation"]  => string(22) "(object value omitted)" 
    ["documentElement"] => string(22) "(object value omitted)" 
    ["actualEncoding"]  => string(6) "gb2312" 
    ["encoding"]        => string(6) "gb2312"
    ["xmlEncoding"]     => string(6) "gb2312" 
    ["standalone"]      => bool(true) 
    ...

A:

loadHTMLFile requires path of the html file not the content of the html file loadhtmlfile.  So your code will be
$doc = new DOMDocument();
$doc->loadHTMLFile("path to html file");
$xpath = new DOMXpath($doc);

Edit
If you want to load from html content use loadhtml
$doc = new DOMDocument();
$doc->loadHTML($store);
$xpath = new DOMXpath($doc);

