PHP - Redirect to another page after getting node values from current page

I want to redirect user to another page after getting node values from current page and passing them into the URL's parameter, here is my code:

<?php

    $dom = new DOMDocument;
    $html = file_get_contents(home_url(). $_SERVER['REQUEST_URI']);
    $dom->loadHTML($html);

    $addresses =   $dom->getElementsByTagName('address');


    foreach ($addresses as $key => $address) {
            $add[$key] = $address->nodeValue;
    }


   $fields['address'] = urlencode($add[0]);

    $qry = http_build_query($fields);

    if(!empty($qry)){  
        header( 'Location: http://ift.tt/1F3N91f?' . $qry) ;  
       }

       ?>

It does redirect successfully, but http_build_query values are empty. Here's an example of redirect: http://ift.tt/1xzUhov , the URL is without the value of $_GET['address'] .