RabbitMQ in PHP
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RabbitMQ is a messaging broker that allows applications to send and receive messages. It uses AMQP and is written in Erlang. This document discusses installing RabbitMQ on Ubuntu, managing it via a web GUI, and using the php-amqplib library to integrate PHP applications with RabbitMQ. An example demonstrates using RabbitMQ to asynchronously process slow image downloads in a PHP application.
RabbitMQ in PHP
- 1. RabbitMQ in PHP use message broker rabbitmq in php Sergio Sicari <sergiosicari@gmail.com>
- 2. What is a RabbitMQ? RabbitMQ is a messaging broker, a service platform to send and receive messages implementing the Advanced Message Queueing Protocol (AMQP). It's write in Erlang and open source. It's official supported on a number of operating system and language (through API)
- 3. Install the service On Ubuntu from repository: 1) Add the following line to your /etc/apt/sources.list: deb http://www.rabbitmq.com/debian/ testing main 2) $ apt-get update 3) $ sudo apt-get install rabbitmq-server You managing the service with 'rabbitmqctl' $ rabbitmqctl stop/start $ rabbitmqctl status
- 4. Managment (rabbitmqadmin*) The rabbitmq-management plugin provides an HTTP-based API for management and monitoring of your RabbitMQ server, along with a browser-based UI and a command line tool. You can install with follow command: $ rabbitmq-plugins enable rabbitmq_management Now you can manage RabbitMQ from web gui at: http://localhost:55672 ** * rabbitmqadmin require Mochiweb web server ** username: guest password: guest
- 6. Use php 5.3* Use php-amqplib, a php implementation of amqp protocol from https://github.com/videlalvaro/php-amqplib $ git clone git://github.com/videlalvaro/php-amqplib.git use composer to resolve depencies $ curl --silent https://getcomposer.org/installer | php $ php composer.phar install * this version of lib require php 5.3 because it use namespaces feature for use it on php 5.2 checkout from http://code.google.com/p/php-amqplib/ and use require_once instead of namespaces
- 7. Example: I have a process that execute two operation: 1. Download and process some data (fast) 2. Download image from web (slow) I don't want to wait for second operation, because it's slow! I delegate the second operation to RabbitMQ
- 8. Solve with RabbitMQ Standard RabbitMQ init init download data download data Queue download images processing data processing data end end C Consumer: consumes the queued data "Processing data" step insert link in queue It will be disposed of by the consumer regardless
- 9. Publisher Connection + Channel for AMQP Fast operation, run directly Put (publish) in Queue link for download image
- 10. Consumer Connection + Channel for AMQP Process function (download images) this is a callback function used by basic_consume method for queue consume * When the process is completed consumer return an acknowledge to publisher *
- 11. References http://www.rabbitmq.com/ Official Site https://github.com/videlalvaro/php-amqplib Php API (5.3) http://code.google.com/p/php-amqplib/ Php API (5.2) Sergio Sicari <sergiosicari@gmail.com>