<?php require_once("../OpenSearch/Autoloader/Autoloader.php"); use OpenSearch\Client\OpenSearchClient; $accessKeyId = '<Your accessKeyId>'; $secret = '<Your secret>'; $endPoint = '<region endPoint>'; $appName = '<app name>'; $suggestName = '<suggest name>'; $options = array('debug' => true); $client = new OpenSearchClient($accessKeyId, $secret, $endPoint, $options);