function getHistograms(Aliyun_Sls_Client $client, $project, $logstore) { $topic = 'TestTopic'; $from = time() - 3600; $to = time(); $request = new Aliyun_Sls_Models_GetHistogramsRequest($project, $logstore, $from, $to, $topic, ''); try { $response = $client->getHistograms($request); var_dump($response); } catch (Aliyun_Sls_Exception $ex) { var_dump($ex); } catch (Exception $ex) { var_dump($ex); } }