'default', 'region' => 'us-west-2', 'version' => '2010-05-08' ]); try { $result = $client->getAccessKeyLastUsed([ 'AccessKeyId' => 'ACCESS_KEY_ID', // REQUIRED ]); var_dump($result); } catch (AwsException $e) { // output error message if fails error_log($e->getMessage()); } // snippet-end:[iam.php.get_access_key_last_used.main] // snippet-end:[iam.php.get_access_key_last_used.complete]