Sample GSA Search

<?php
/**
* From configuration settings.
*/
/**
 * At a minimum, change the sitesearch value to the new site's domain
 */
define('GSA_SEARCH_PARAMS',  serialize(array(
    'site'            => 'default_collection',
    'proxystylesheet' => 'wc_standard',
    'client'          => 'wc_standard',
    'output'          => 'xml_no_dtd',
    'sitesearch'      => 'subdomain-to-search.missouri.edu'
)));

/**
* GSA's site search url
*/
define('GSA_SEARCH_URL','http://search.missouri.edu/search?');
?>

<?php
 /**
 * Template Name: Search
 *
 * Displays search results from the GSA. Also doubles as the the template to
 * be attached to the Search page created in wordpress.
 *
 * @package WordPress
 * @subpackage SITENAME
 * @category theme
 * @category template
 * @author Paul F. Gilzow, Web Communications, University of Missouri
 * @copyright 2013 Curators of the University of Missouri
 */

$arySearchParams = unserialize(GSA_SEARCH_PARAMS);
/**
* Doesnt matter if s or q has been used as the search parameter, we want to use either to invoke a gsa search
*/
if ( (isset( $_GET['q'] ) && $_GET['q'] != '') || (isset($_GET['s']) && $_GET['s'] != '')) {

    // Add search inputs to query array
    $arySearchParams['q'] = (isset($_GET['q'])) ? $_GET['q'] : $_GET['s'];
    if(is_array($arySearchParams['q'])) $arySearchParams['q'] = implode (' ', $arySearchParams['q']);
    if ( isset($_GET['start']) && $_GET['start'] != '') $arySearchParams['start']  = $_GET['start'];
    if ( isset($_GET['sort']) && $_GET['sort'] != '') $arySearchParams['sort']   = $_GET['sort'];
    if ( isset($_GET['filter']) && $_GET['filter']  != '') $arySearchParams['filter'] = $_GET['filter'];


    $arySearchParams['q'] = stripcslashes($arySearchParams['q']);

    $strResults = file_get_contents(GSA_SEARCH_URL.http_build_query($arySearchParams));

}
$boolNoResults = (!isset($strResults) || $strResults == '') ? true : false;
get_header();
 ?>

        <div id="default">
            <?php get_template_part('aside','example'); ?>

                <h2 id="skip">Search<?php if(!$boolNoResults) echo ' Results'; ?></h2>

                    <?php if($boolNoResults): ?>
                        <?php get_search_form(); ?>
                    <?php else :?>
                        <?php echo $strResults;?>
                    <?php endif;?>
        </div><!-- #default -->
<?php get_footer(); ?>