/**
  * cache processed result data
  * @param array $postParam array('post_domain' => 'xx.tumblr.com', 'post_id' => xxxx)
  * @param mixed $postInfo processed result data
  * @return bool
  */
 public static function setQuickInfoCache($postParam, $postInfo)
 {
     !static::$mc && (static::$mc = new mc());
     $key = "{$postParam['post_domain']}|{$postParam['post_id']}|QuickResponse";
     return static::$mc->setInfo($key, $postInfo);
 }