<?php
// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

/*
 *  ABOUT THIS PHP SAMPLE: This sample is part of the SDK for PHP Developer Guide topic
 *
 *
 */
// snippet-start:[sns.php.set_topic_attributes.complete]
// snippet-start:[sns.php.set_topic_attributes.import]
require 'vendor/autoload.php';

use Aws\Exception\AwsException;
use Aws\Sns\SnsClient;

// snippet-end:[sns.php.set_topic_attributes.import]

/**
 * Configure the message delivery status attributes for an Amazon SNS Topic.
 *
 * This code expects that you have AWS credentials set up per:
 * https://docs.aws.amazon.com/sdk-for-php/v3/developer-guide/guide_credentials.html
 */

// snippet-start:[sns.php.set_topic_attributes.main]
$SnSclient = new SnsClient([
    'profile' => 'default',
    'region' => 'us-east-1',
    'version' => '2010-03-31'
]);
$attribute = 'Policy | DisplayName | DeliveryPolicy';
$value = 'First Topic';
$topic = 'arn:aws:sns:us-east-1:111122223333:MyTopic';

try {
    $result = $SnSclient->setTopicAttributes([
        'AttributeName' => $attribute,
        'AttributeValue' => $value,
        'TopicArn' => $topic,
    ]);
    var_dump($result);
} catch (AwsException $e) {
    // output error message if fails
    error_log($e->getMessage());
}

// snippet-end:[sns.php.set_topic_attributes.main]
// snippet-end:[sns.php.set_topic_attributes.complete]