/**
* Checks to see if a Topic exists
*
* This method relies on in-memory cache and the Cache provider
* to reduce the need to needlessly call the create method on an existing
* Topic.
*
* @return boolean
*/
public function topicExists()
{
if (isset($this->topicArn)) {
return true;
}
$key = $this->getNameWithPrefix() . '_arn';
if ($this->cache->contains($key)) {
$this->topicArn = $this->cache->fetch($key);
return true;
}
if (!empty($this->queueUrl)) {
$queueArn = $this->sqs->getQueueArn($this->queueUrl);
$topicArn = str_replace('sqs', 'sns', $queueArn);
try {
$this->sns->getTopicAttributes(['TopicArn' => $topicArn]);
} catch (SnsException $e) {
return false;
}
$this->topicArn = $topicArn;
$this->cache->save($key, $this->topicArn);
return true;
}
return false;
}
<?php
session_start();
require 'vendor/autoload.php';
use Aws\Sns\SnsClient;
//Create topic and subscribe to it
$email = $_POST['email'];
$sns = new Aws\Sns\SnsClient(array('version' => 'latest', 'region' => 'us-east-1'));
$ArnArray = $sns->createTopic(['Name' => 'mp2-jgl-pict']);
$Arn = $ArnArray['TopicArn'];
$settopicAttributes = $sns->setTopicAttributes(array('TopicArn' => "{$Arn}", 'AttributeName' => 'DisplayName', 'AttributeValue' => 'mp2-jgl-pict'));
$topicAttributes = $sns->getTopicAttributes(array('TopicArn' => "{$Arn}", 'AttributeName' => 'DisplayName', 'AttributeValue' => 'mp2-jgl-pict'));
$listSubscriptions = $sns->listSubscriptionsByTopic(array('TopicArn' => $Arn));
$subscribe = $sns->subscribe(array('TopicArn' => $Arn, 'Protocol' => 'email', 'Endpoint' => $email));
?>
<html>
<body style="background-color:LemonChiffon">
<center>
<h1 style=> Subscription confirmed</h1>
<h2>
<?php
echo $email;
?>
</h2>
<h3> <?php
echo "\r\n";
echo "You will receive an email you must confirm";
?>
</h3><a href="/index.php">Index page</a></center>
/**
* @depends testCreatesTopic
*/
public function testListsTopicAttributes($topicArn)
{
$result = $this->sns->getTopicAttributes(array('TopicArn' => $topicArn));
$result = $result->toArray();
// Ensure that the map was deserialized correctly
$this->assertArrayHasKey('TopicArn', $result['Attributes']);
$this->assertArrayHasKey('Policy', $result['Attributes']);
$this->assertArrayHasKey('Owner', $result['Attributes']);
}
