如何将foreach放入数组

我有这个

// tell the user
 $homedata = $user->getbanks();

    foreach ($homedata as $data)

echo json_encode(array("replies" => array(


                           array("message" =>      $data->bankname),



            )));

} 如何将其放入数组中。我尝试了它,只给了我最初的内容。请帮忙。