Composer is the dependency manager for PHP and you are on a one-page-only documentation for this tool.
Official documentation is on the official website, this page just brings you the essential.
One line installer
curl -sS https://getcomposer.org/installer | php
composer.phar most needed command line
$ composer require vendor-name/package-name
$ composer install
$ composer update
$ composer update --lock
$ composer dump-autoload --optimize
other commands
$ composer about
$ composer archive
$ composer browse
$ composer clear-cache
$ composer config --list
$ composer create-project symfony/standard-edition dir/
$ composer depends vendor-name/package-name
$ composer diagnose
$ composer exec
$ composer global
$ composer help
$ composer info
$ composer init
$ composer licenses
$ composer list
$ composer outdated
$ composer prohibits
$ composer remove
$ composer run-script
$ composer search my keywords
$ composer self-update
$ composer show
$ composer status
$ composer suggests
$ composer validate
composer.json file
{
"name": "vendor-name/project-name",
"description": "This is a very cool package!",
"version": "0.3.0",
"type": "library",
"keywords": ["logging", "cool", "awesome"],
"homepage": "https://jolicode.com",
"time": "2012-12-21",
"license": "MIT",
"authors": [
{
"name": "Xavier Lacot",
"email": "xlacot@jolicode.com",
"homepage": "http://www.lacot.org",
"role": "Developer"
},
{
"name": "Benjamin Clay",
"email": "bclay@jolicode.com",
"homepage": "https://github.com/ternel",
"role": "Developer"
}
],
"support": {
"email": "support@exemple.org",
"issues": "https://github.com/jolicode/jane/issues",
"forum": "http://www.my-forum.com/",
"wiki": "http://www.my-wiki.com/",
"irc": "irc://irc.freenode.org/composer",
"source": "https://github.com/jolicode/jane",
"docs": "https://github.com/jolicode/jane/wiki"
},
"require": {
"monolog/monolog": "1.0.*",
"joli/ternel": "@dev",
"joli/ternel-bundle": "@stable",
"joli/semver": "^2.0",
"joli/package": ">=1.0 <1.1",
"acme/foo": "dev-master#2eb0c097"
},
"require-dev": {
"debug/dev-only": "1.0.*"
},
"conflict": {
"another-vendor/conflict": "1.0.*"
},
"replace": {
"debug/dev-only": "1.0.*"
},
"provide": {
"debug/dev-only": "1.0.*"
},
"suggest": {
"jolicode/gif-exception-bundle": "For fun!"
},
"autoload": {
"psr-4": {
"Monolog\\": "src/",
"Vendor\\Namespace\\": ""
},
"psr-0": {
"Monolog": "src/",
"Vendor\\Namespace": ["src/", "lib/"],
"Pear_Style": "src/",
"": "src/"
},
"classmap": ["src/", "lib/", "Something.php"],
"files": ["src/MyLibrary/functions.php"]
},
"autoload-dev": {
"psr-0": {
"MyPackage\\Tests": "test/"
}
},
"target-dir": "Symfony/Component/Yaml",
"minimum-stability": "stable",
"repositories": [
{
"type": "composer",
"url": "http://packages.example.com"
},
{
"type": "vcs",
"url": "https://github.com/Seldaek/monolog"
},
{
"type": "pear",
"url": "http://pear2.php.net"
},
{
"type": "package",
"package": {
"name": "smarty/smarty",
"version": "3.1.7",
"dist": {
"url": "http://www.smarty.net/Smarty-3.1.7.zip",
"type": "zip"
},
"source": {
"url": "http://smarty-php.googlecode.com/svn/",
"type": "svn",
"reference": "tags/Smarty_3_1_7/distribution/"
}
}
},
{
"type": "artifact",
"url": "path/to/directory/with/zips/"
},
{
"type": "path",
"url": "../../packages/my-package"
}
],
"config": {
"process-timeout": 300,
"use-include-path": false,
"preferred-install": "auto",
"store-auths": "prompt",
"github-protocols": ["git", "https", "http"],
"github-oauth": {"github.com": "oauthtoken"},
"gitlab-oauth": {"gitlab.com": "oauthtoken"},
"github-domains": ["entreprise-github.me.com"],
"gitlab-domains": ["entreprise-gitlab.me.com"],
"github-expose-hostname": true,
"disable-tls": false,
"cafile": "/var/certif.ca",
"capath": "/var/",
"http-basic": {"me.io":{"username":"foo","password":"bar"},
"platform": {"php": "5.4", "ext-something": "4.0"},
"vendor-dir": "vendor",
"bin-dir": "bin",
"data-dir": "/home/ternel/here",
"cache-dir": "$home/cache",
"cache-files-dir": "$cache-dir/files",
"cache-repo-dir": "$cache-dir/repo",
"cache-vcs-dir": "$cache-dir/vcs",
"cache-files-ttl": 15552000,
"cache-files-maxsize": "300MiB",
"bin-compat": "auto",
"prepend-autoloader": true,
"autoloader-suffix": "pony",
"optimize-autoloader": false,
"sort-packages": false,
"classmap-authoritative": false,
"notify-on-install": true,
"discard-changes": false,
"archive-format": "tar",
"archive-dir": "."
},
"archive": {
"exclude": ["/foo/bar", "baz", "/*.test", "!/foo/bar/baz"]
},
"prefer-stable": true,
"scripts": {
"pre-install-cmd": "MyVendor\\MyClass::doSomething",
"post-install-cmd": [
"MyVendor\\MyClass::warmCache",
"phpunit -c app/"
],
"pre-update-cmd": "MyVendor\\MyClass::doSomething",
"post-update-cmd": "MyVendor\\MyClass::doSomething",
"pre-status-cmd": "MyVendor\\MyClass::doSomething",
"post-status-cmd": "MyVendor\\MyClass::doSomething",
"pre-package-install": "MyVendor\\MyClass::doSomething",
"post-package-install": [
"MyVendor\\MyClass::postPackageInstall"
],
"pre-package-update": "MyVendor\\MyClass::doSomething",
"post-package-update": "MyVendor\\MyClass::doSomething",
"pre-package-uninstall": "MyVendor\\MyClass::doSomething",
"post-package-uninstall": "MyVendor\\MyClass::doSomething",
"pre-autoload-dump": "MyVendor\\MyClass::doSomething",
"post-autoload-dump": "MyVendor\\MyClass::doSomething",
"post-root-package-install": "MyVendor\\MyClass::doStuff",
"post-create-project-cmd": "MyVendor\\MyClass::doThis",
"pre-archive-cmd": "MyVendor\\MyClass::doSomething",
"post-archive-cmd": "MyVendor\\MyClass::doSomething",
},
"extra": { "key": "value" },
"bin": ["./bin/toto"]
}
