What RabbitMQ Can Do For You

James TitcumbNomad PHP Lightning Talk

May 2014

Who is this guy?

James Titcumb

www.jamestitcumb.com

www.protected.co.uk

www.phphants.co.uk

@asgrim

What is message queuing?

Separate applications

Low cost parallelisation

Basic Example

Publisher

queue

Consumer

Based on: http://www.rabbitmq.com/tutorials/tutorial-one-php.html

Exchanges

Based on: http://www.rabbitmq.com/tutorials/tutorial-three-php.html

queue1

Publisher

Publisher

Publisher

Publisher

Exchange

queue2

Consumer

Consumer

Consumer

Exchanges: Direct

Based on: http://www.rabbitmq.com/tutorials/tutorial-four-php.html

fruit

Exchange

vegetable

Fruit consumer

Veg consumer

Fruit consumerPublisher

routing key: fruit

routing key: vegetable

Exchanges: Topic

Based on: http://www.rabbitmq.com/tutorials/tutorial-five-php.html

*.fruit

Exchange

green.*

Fruit consumer

Green consumer

Veg consumerPublisher

routing key: green.fruit

routing key: green.vegetable

*.vegetable

Real World Uses

● Fast logging solution● Sending emails● Sending SMS● Background processing (e.g. analysing data)

Using in PHP?https://github.com/videlalvaro/php-amqplib

composer.json

{

"require": {

"videlalvaro/php-amqplib": "2.*"

}

}

Set up the channel

use PhpAmqpLib\Connection\AMQPConnection;

$connection = new AMQPConnection(

'localhost', 5672, 'guest', 'guest', '/');

$channel = $connection->channel();

$channel->queue_declare('my_queue', /* params... */);

$channel->exchange_declare(

'my_exchange', 'fanout', /* params... */);

$channel->queue_bind('my_queue', 'my_exchange');

Basic Publishing Example

use PhpAmqpLib\Message\AMQPMessage;

$content = 'Hello world';

$message = new AMQPMessage($content);

$channel->basic_publish($message);

Basic Consumer Example

use PhpAmqpLib\Message\AMQPMessage;

$channel->basic_consume(

'my_queue',

/* some more parameters */

function (AMQPMessage $message) {

echo $message->body;

}

);

Questions?

Thank you!

James Titcumb

www.jamestitcumb.com

www.protected.co.uk

www.phphants.co.uk

@asgrim

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