Tool to manage dependency packages in your project

2. Project Dependencies
Project that depends on a number of libraries.
Libraries depend on other libraries.
Declare the things you depend on.
Composer
which packages
which versions
installs them (meaning it
downloads them into your project).

3. ●
●
Command-line utility
Inspired by npm and bundler
●
●
Dependency manager
Not package manager
What is
Composer?
●
●
Download project dependencies
Set autoloading
●
●
Composer compatible Php
Libraries
Packagist

4. System Requirements
●
PHP 5.3.2+
●
php settings and compile flags
●
git, svn or hg
●
Composer is multi-platform

5. Installation
●
Can be installed locally i.e in your working directory
●
Recommended to install globally (/usr/local/bin)
●
Interactive Installation : curl -s https://getcomposer.org/installer | php
Run the installer.
●
Manual Installation : curl -s https://getcomposer.org/composer.phar -o
$HOME/local/bin/composer
chmod +x $HOME/local/bin/composer

6. Using Composer
●
composer require phpunit/phpunit:3.9
●
composer.json
●
“require” key
○ {
“require” : {“monolog/monolog” : “dev-master#12”}
“require” : {
“phpunit/phpunit” : “3.9.*@dev”
"prefer-stable": true
}
“require” : {“dojo/dojo” : “>1.8.0”}
“require” : {“dojo/dijit” : “~1.8”}
}
●
require : {
[Vendor Name] / [Package Name] : [version]
}
●
php composer.phar install

7. Autoloading
require ‘vendor/autoload.php’
Supported : PSR-0 AND PSR-4
{
"autoload": {
"psr-4": {
"Monolog": "src/",
"VendorNamespace": ""
}
}
}
$loader = require 'vendor/autoload.php';
$loader->add('AcmeTest', __DIR__);
More Details : https://getcomposer.org/doc/04-schema.md#autoload

8. Google+ API Examples
{
"name": "googleplus/quickstart",
"description": "This quick-start ...",
"license": "Apache-2.0",
"repositories": [
{
"type": "package",
"package": {
"name": "google/google-api-php-client",
"version": "0.6.2",
"dist": {
"url": "http://google-api-php-client.googlecode.com/files/google-api-php-client-0.6.2.tar.gz",
"type": "tar"
},
"autoload": {
"classmap": [
"src/"
]
}
}
}
],
"require": {
"silex/silex": "1.0.*@dev",
"twig/twig": ">=1.8,<2.0-dev",
"google/google-api-php-client": "0.6.2"
}
}

9. References
http://www.phptherightway.com/#composer_and_packagist
http://foohack.com/2010/08/intro-to-npm/
https://getcomposer.org/doc/00-intro.md
https://security.sensiolabs.org/disclaimer
http://www.php-fig.org/psr/psr-4/
https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md
https://getcomposer.org/doc/04-schema.md
https://developers.google.com/+/quickstart/php