Abstract: Composer is a tool for managing dependencies in PHP projects. This talk will introduce Composer and its associated package repository Packagist. The key features and benefits of using Composer will be explored and through practical demonstrations you will gain a working knowledge of using Composer for dependency management.

1. Tom Corrigan Melbourne PHP Users Group
rostercloud.com October 2012
@t_corrigan

2. What is Composer?
“Composer is a tool for dependency management. It allows you to
declare the dependent libraries your project needs and it will install
them in your project for you.”
[http://getcomposer.org/doc/00-intro.md]

3. What does that mean?

4. What does that mean?
• Scope is per project, not global

5. What does that mean?
• Scope is per project, not global
• Resolves dependencies

6. What does that mean?
• Scope is per project, not global
• Resolves dependencies
• Runs installation tasks

7. Who’s using Composer?

8. Packagist

9. Packagist

10. Packagist
• Composer’s default repository

11. Packagist
• Composer’s default repository
• Put your open source libraries
here

12. Packagist
• Composer’s default repository
• Put your open source libraries
here
• Great resource for well
maintained PHP libraries

13. Statistics
[https://packagist.org/statistics]

14. Statistics
• Over 4000 packages listed on packagist.org
[https://packagist.org/statistics]

15. Statistics
• Over 4000 packages listed on packagist.org
• More than 4,500,000 package installations over the last 6 months
[https://packagist.org/statistics]

16. Installing Composer

17. Installing Composer
Locally:

18. Installing Composer
Locally:
$ cd /project/path
$ curl -s https://getcomposer.org/installer | php

19. Installing Composer
Locally:
$ cd /project/path
$ curl -s https://getcomposer.org/installer | php
Globally:

20. Installing Composer
Locally:
$ cd /project/path
$ curl -s https://getcomposer.org/installer | php
Globally:
$ sudo mv composer.phar /usr/local/bin/composer

21. Staying current

22. Staying current
Locally:

23. Staying current
Locally:
$ cd /project/path
$ php composer.phar self-update

24. Staying current
Locally:
$ cd /project/path
$ php composer.phar self-update
Globally:

25. Staying current
Locally:
$ cd /project/path
$ php composer.phar self-update
Globally:
$ composer self-update

26. Using Composer

27. Using Composer
• Define project dependencies

28. Using Composer
• Define project dependencies
• Install them

29. Using Composer
• Define project dependencies
• Install them
• Bootstrap the autoloader

30. Define your dependencies

31. Define your dependencies
composer.json

32. Define your dependencies
composer.json
{
"require": {
"phpmelb/project1": "1.0.2"
"phpmelb/project2": "1.0.*"
"phpmelb/project3": ">=1.0,<2.0"
"phpmelb/project4": "4d3fe5feaf"
"phpmelb/project5": "dev-master"
}
}

33. Install

34. Install
$ composer install

35. Install
$ composer install
vendor/
.composer/
phpmelb/
project1/
project2/
project3/
project4/
autoload.php

36. Using the autoloader
<?php
require 'vendor/autoload.php';
$foo = new PHPMelbProject1Foo();
$bar = new PHPMelb_Project2_Bar();
...

38. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",

39. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",
"autoload": {
"psr-0": { "": "src/" }
},

40. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",
"autoload": {
"psr-0": { "": "src/" }
},

41. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",
"autoload": {
"psr-0": { "": "src/" }
},
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.1.*",
"doctrine/orm": ">=2.2.3,<2.4-dev",
"doctrine/doctrine-bundle": "1.0.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.1.*",
"symfony/monolog-bundle": "2.1.*",
"sensio/distribution-bundle": "2.1.*",
"sensio/framework-extra-bundle": "2.1.*",
"sensio/generator-bundle": "2.1.*",
"jms/security-extra-bundle": "1.2.*",
"jms/di-extra-bundle": "1.1.*"
},

42. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",
"autoload": {
"psr-0": { "": "src/" }
},
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.1.*",
"doctrine/orm": ">=2.2.3,<2.4-dev",
"doctrine/doctrine-bundle": "1.0.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.1.*",
"symfony/monolog-bundle": "2.1.*",
"sensio/distribution-bundle": "2.1.*",
"sensio/framework-extra-bundle": "2.1.*",
"sensio/generator-bundle": "2.1.*",
"jms/security-extra-bundle": "1.2.*",
"jms/di-extra-bundle": "1.1.*"
},
"scripts": {
"post-install-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
],
"post-update-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
]
},

43. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",
"autoload": {
"psr-0": { "": "src/" }
},
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.1.*",
"doctrine/orm": ">=2.2.3,<2.4-dev",
"doctrine/doctrine-bundle": "1.0.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.1.*",
"symfony/monolog-bundle": "2.1.*",
"sensio/distribution-bundle": "2.1.*",
"sensio/framework-extra-bundle": "2.1.*",
"sensio/generator-bundle": "2.1.*",
"jms/security-extra-bundle": "1.2.*",
"jms/di-extra-bundle": "1.1.*"
},
"scripts": {
"post-install-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
],
"post-update-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
]
},
"config": {
"bin-dir": "bin"
},

44. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",
"autoload": {
"psr-0": { "": "src/" }
},
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.1.*",
"doctrine/orm": ">=2.2.3,<2.4-dev",
"doctrine/doctrine-bundle": "1.0.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.1.*",
"symfony/monolog-bundle": "2.1.*",
"sensio/distribution-bundle": "2.1.*",
"sensio/framework-extra-bundle": "2.1.*",
"sensio/generator-bundle": "2.1.*",
"jms/security-extra-bundle": "1.2.*",
"jms/di-extra-bundle": "1.1.*"
},
"scripts": {
"post-install-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
],
"post-update-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
]
},
"config": {
"bin-dir": "bin"
},
"minimum-stability": "dev",

45. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",
"autoload": {
"psr-0": { "": "src/" }
},
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.1.*",
"doctrine/orm": ">=2.2.3,<2.4-dev",
"doctrine/doctrine-bundle": "1.0.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.1.*",
"symfony/monolog-bundle": "2.1.*",
"sensio/distribution-bundle": "2.1.*",
"sensio/framework-extra-bundle": "2.1.*",
"sensio/generator-bundle": "2.1.*",
"jms/security-extra-bundle": "1.2.*",
"jms/di-extra-bundle": "1.1.*"
},
"scripts": {
"post-install-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
],
"post-update-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
]
},
"config": {
"bin-dir": "bin"
},
"minimum-stability": "dev",

46. {
"name": "symfony/framework-standard-edition",
"description": "The "Symfony Standard Edition" distribution",
"autoload": {
"psr-0": { "": "src/" }
},
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.1.*",
"doctrine/orm": ">=2.2.3,<2.4-dev",
"doctrine/doctrine-bundle": "1.0.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.1.*",
"symfony/monolog-bundle": "2.1.*",
"sensio/distribution-bundle": "2.1.*",
"sensio/framework-extra-bundle": "2.1.*",
"sensio/generator-bundle": "2.1.*",
"jms/security-extra-bundle": "1.2.*",
"jms/di-extra-bundle": "1.1.*"
},
"scripts": {
"post-install-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
],
"post-update-cmd": [
"SensioBundleDistributionBundleComposerScriptHandler::buildBootstrap",
"SensioBundleDistributionBundleComposerScriptHandler::clearCache",
"SensioBundleDistributionBundleComposerScriptHandler::installAssets",
"SensioBundleDistributionBundleComposerScriptHandler::installRequirementsFile"
]
},
"config": {
"bin-dir": "bin"
},
"minimum-stability": "dev",
"extra": {
"symfony-app-dir": "app",
"symfony-web-dir": "web"
}

47. Composer: Killer Features

48. Composer: Killer Features
• composer.lock

49. Composer: Killer Features
• composer.lock
• Satis - Your private repository

50. Composer: Killer Features
• composer.lock
• Satis - Your private repository
• composer installers

51. Composer: Killer Features
• composer.lock
• Satis - Your private repository
• composer installers
• Get started with a new framework project directly from composer

52. composer.lock

53. composer.lock
• Used when you call composer install

54. composer.lock
• Used when you call composer install
• Updated by composer update

55. composer.lock
• Used when you call composer install
• Updated by composer update
• Everybody runs the exact same version of dependencies

56. Satis

57. Satis
• Your very own packagist for your proprietary code

58. Satis
• Your very own packagist for your proprietary code
• Eases deployment

59. Satis
• Your very own packagist for your proprietary code
• Eases deployment
• Composer will connect to it securely

60. Satis
• Your very own packagist for your proprietary code
• Eases deployment
• Composer will connect to it securely
• HTTPS -Public key

61. Satis
• Your very own packagist for your proprietary code
• Eases deployment
• Composer will connect to it securely
• HTTPS -Public key
• SSH

62. Satis
• Your very own packagist for your proprietary code
• Eases deployment
• Composer will connect to it securely
• HTTPS -Public key
• SSH
• See https://github.com/composer/satis

63. Composer Installers
•CakePHP •lithium-source
•cakephp-plugin •Magento
•CodeIgniter •magento-library
•codeigniter-library •magento-skin
•codeigniter-third-party •magento-theme
•codeigniter-module •Mako
•Drupal •mako-package
•drupal-module •MediaWiki
•drupal-theme •mediawiki-extension
•drupal-profile •phpBB
•drupal-drush •phpbb-extension
•FuelPHP •PPI
•fuelphp-module •ppi-module
•Joomla •SilverStripe
•joomla-component •silverstripe-module
•joomla-module •silverstripe-theme
•joomla-template •symfony1
•joomla-plugin •symfony1-plugin
•joomla-library •WordPress
•Kohana •wordpress-plugin
•kohana-module •wordpress-theme
•Laravel •Zend
•laravel-library •zend-library
•Lithium •zend-extra
•lithium-library

64. Composer Installers
•CakePHP •lithium-source
•cakephp-plugin •Magento
• Bring the power and ease •CodeIgniter
•codeigniter-library
•codeigniter-third-party
•magento-library
•magento-skin
•magento-theme
of Composer to your •codeigniter-module •Mako
•Drupal •mako-package
framework/CMS •drupal-module •MediaWiki
•drupal-theme •mediawiki-extension
•drupal-profile •phpBB
•drupal-drush •phpbb-extension
•FuelPHP •PPI
•fuelphp-module •ppi-module
•Joomla •SilverStripe
•joomla-component •silverstripe-module
•joomla-module •silverstripe-theme
•joomla-template •symfony1
•joomla-plugin •symfony1-plugin
•joomla-library •WordPress
•Kohana •wordpress-plugin
•kohana-module •wordpress-theme
•Laravel •Zend
•laravel-library •zend-library
•Lithium •zend-extra
•lithium-library

65. Composer Installers
•CakePHP •lithium-source
•cakephp-plugin •Magento
• Bring the power and ease •CodeIgniter
•codeigniter-library
•codeigniter-third-party
•magento-library
•magento-skin
•magento-theme
of Composer to your •codeigniter-module •Mako
•Drupal •mako-package
framework/CMS •drupal-module •MediaWiki
•drupal-theme •mediawiki-extension
•drupal-profile •phpBB
• Magically installs packages/ •drupal-drush
•FuelPHP
•fuelphp-module
•phpbb-extension
•PPI
•ppi-module
plugins to the correct •Joomla •SilverStripe
•joomla-component •silverstripe-module
location for framework •joomla-module •silverstripe-theme
•joomla-template •symfony1
•joomla-plugin •symfony1-plugin
•joomla-library •WordPress
•Kohana •wordpress-plugin
•kohana-module •wordpress-theme
•Laravel •Zend
•laravel-library •zend-library
•Lithium •zend-extra
•lithium-library

66. Composer Installers
•CakePHP •lithium-source
•cakephp-plugin •Magento
• Bring the power and ease •CodeIgniter
•codeigniter-library
•codeigniter-third-party
•magento-library
•magento-skin
•magento-theme
of Composer to your •codeigniter-module •Mako
•Drupal •mako-package
framework/CMS •drupal-module •MediaWiki
•drupal-theme •mediawiki-extension
•drupal-profile •phpBB
• Magically installs packages/ •drupal-drush
•FuelPHP
•fuelphp-module
•phpbb-extension
•PPI
•ppi-module
plugins to the correct •Joomla •SilverStripe
•joomla-component •silverstripe-module
location for framework •joomla-module •silverstripe-theme
•joomla-template •symfony1
•joomla-plugin •symfony1-plugin
• See https://github.com/ •joomla-library
•Kohana
•kohana-module
•WordPress
•wordpress-plugin
•wordpress-theme
composer/installers •Laravel •Zend
•laravel-library •zend-library
•Lithium •zend-extra
•lithium-library

67. Setup a new project
• Symfony2
composer create-project symfony/framework-standard-edition path/to/install
• Zend Framework 2
composer create-project --repository-url="http://
packages.zendframework.com" zendframework/skeleton-application path/to/
install

68. ?

69. Thankyou
Further Reading:
http://getcomposer.org
http://packagist.org
http://symfony.com/video/26/in-depth-with-composer/English
Slides available at https://speakerdeck.com/u/tommygnr