gistfile1.php

<?php

namespace Foo\SomeBundle\Service;

use Aws\Sns\SnsClient;

class Notifications
{
    /**
     * @var SnsClient
     */
    protected $client;

    /**
     * @var string
     */
    protected $arn;

    /**
     * @param array $options
     * @param string $arn
     *
     * @return SnsClient
     */
    public function __construct($options, $arn)
    {
        $this->client = SnsClient::factory($options);
        $this->arn = $arn;
    }

    /**
     * publish a notification to sns
     *
     * @param string $subject
     * @param string $message
     * @return void
     */
    public function publish($subject, $message)
    {
        $this->client->publish([
            'TopicArn' => $this->arn,
            'Subject' => $subject,
            'Message' => $message,
            'MessageAttributes' => [
                'String' => [
                    'DataType' => 'String',
                    'StringValue' => 'string'
                ]
            ]
        ]);
    }
}