Cách đăng ký động ajax cực chất (ok)

function mbt_news_feed_init() {
  if(array_key_exists('action', $_REQUEST) && in_array($_REQUEST['action'], mbt_news_feed_valid_actions())) {
    do_action( 'wp_ajax_' . $_REQUEST['action'] );
  }
}
unction mbt_news_feed_valid_actions() {
  return array(
    'mbt_following',
    'mbt_follow',
  );
}
if (is_admin()){
  foreach (mbt_news_feed_valid_actions() as $action) {
    add_action('wp_ajax_'.$action, $action);
  }
}
add_action( 'init', 'mbt_news_feed_init');