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<?php

/**

* Copyright 2016 Google Inc.

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*/

/**

* For instructions on how to run the full sample:

*

* @see https://github.com/GoogleCloudPlatform/php-docs-samples/blob/master/pubsub/api/README.md

*/

namespace Google\Cloud\Samples\PubSub;

# [START pubsub_set_topic_policy]

use Google\Cloud\PubSub\PubSubClient;

/**

* Adds a user to the policy for a Pub/Sub topic.

*

* @param string $projectId The Google project ID.

* @param string $topicName The Pub/Sub topic name.

* @param string $userEmail The user email to add to the policy.

*/

function set_topic_policy($projectId, $topicName, $userEmail)

{

$pubsub = new PubSubClient([

'projectId' => $projectId,

]);

$topic = $pubsub->topic($topicName);

$policy = $topic->iam()->policy();

$policy['bindings'][] = [

'role' => 'roles/pubsub.publisher',

'members' => ['user:' . $userEmail]

];

$topic->iam()->setPolicy($policy);

printf('User %s added to policy for %s' . PHP_EOL,

$userEmail,

$topicName);

}

# [END pubsub_set_topic_policy]