Gform dealer code

function get_dealer_name_fn(){
    $dealerCounty = $_POST['dealerCounty'];
    $dealers = get_posts(array(
        "post_type" => "dealer",
        "dealer-country" => $dealerCounty,
        "post_status" => "publish",
        "orderby" => "title",
        "order" => "ASC",
        "posts_per_page"  => -1
    ));

    $items = array();
    $items[] = array( "text" => __('Select dealer...','mission-theme'), "value" => 0 );
    foreach($dealers as $dealer){
        $items[] = array( "text" => $dealer->post_title, "value" => $dealer->post_name );
    }

    echo json_encode($items);
    die;
}
add_action('wp_ajax_get_dealer_name', 'get_dealer_name_fn');
add_action('wp_ajax_nopriv_get_dealer_name', 'get_dealer_name_fn');