{
  "begin_date": "2014-12-02",
  "end_date": "2014-12-07"
}

API_DATA_CUBE_URL = 'https://api.weixin.qq.com/datacube',
API_TYPE_DATA = 'datacube'

public function call($api_name, $params = array(), $type = self::GET, $api_type = self::API_TYPE_CGI) {
    //加入datacube后，用switch来组接口URL
    switch(true) {
      case $api_type == self::API_TYPE_PAY :
        $url = self::PAY_URL.$api_name;
        break;
      case $api_type == self::API_TYPE_DATA:
        $url = self::API_DATA_CUBE_URL.$api_name;
        break;
      default :
        $url = self::API_URL_PREFIX.$api_name;
    }
    if (in_array($api_name, self::$_no_need_token_apis)) {
      $res = $this->request($url, $params, $type);
      if ($res) {
        return $res;
      }
    }
    $this->_access_token = $this->getAccessToken();
    if ($this->_access_token) {
      //加多个or判断带上access_token
      if ($type == self::JSON || $api_type == self::API_TYPE_DATA) {
        $url = $url.'?access_token='.$this->_access_token;
      } else {
        $params['access_token'] = $this->_access_token;
      }
      $res = $this->request($url, $params, $type);
      if ($res) {
        return $res;
      }
    }
    return false;
}

if (isset($argc) && $argc >= 1 && $argv[0] == __FILE__) {
  $client = new WechatJSON(array(
    WechatJSON::APP_ID => 'wx78sfsd023744d51',
    WechatJSON::APP_SECRET => '9ba3476db1fsfsff512esf2f630fb9',
  ));
  $res = $client->call('/getinterfacesummary', array(
    'begin_date' => '2014-12-01',
    'end_date' => '2014-12-31'
  ), WechatJSON::POST, WechatJSON::API_TYPE_DATA);
  if (!$res) {
    var_dump($client->_error);
  }
  var_dump($res);
}