Facebook API标记按页面ID发布页面

Question

In Facebook API I need to know how to tag published pages while posting. Here in this link I found a page using @[page-id] in the message key but I am not able to tag the pages. Please help me how to do that using my app.

$params = array(
    "access_token" => $_SESSION['facebook_access_token'], 
    //"message" => $_SESSION['address']." Test message",
    "message" => "Test message @[19292868552] tag",
    "link" => $site,
    "picture" => $_SESSION['file_name'], 
    "name" => "WeAreVapour",
    "description" => "Vapor Technology Association"
);

try {
    $ret = $fb->post('/me/feed', $params);                            
    echo 'Successfully posted to Facebook';
} catch (Exception $e) {
    echo $e->getMessage();
}