You Should Use Composer

A tool for modern PHP workflow

What is Composer?

A package manager for PHP

Who is Composer?

Jordi

Jordi Boggiano

Nils Adermann, and some help from the Community

Where to get Composer?

getcomposer.org alt text

Install it Globally

$ mv composer.phar /usr/local/bin/composer

On windows, you're gonna have to do something else.

OK, so now what?

Install all the packages

Packagist.org

What to do with it?

Run composer in Terminal and see what's available

$ composer Commands

All Commands

allcommands

Most Common Commands

$ composer create-project
$ composer install
$ composer update
$ composer require
$ composer remove
$ composer dumpautoload
$ composer selfupdate
$ composer init

How does all this work?

Autoload

<?php require '/vendor/autoload.php';

vendor directory

X Class not found

$ composer dumpautoload

Try first, everytime.

composer.lock out of sync

Delete the file and run $ composer install

Note: composer.lock should be included in git repository

Errors installing packages

Sometimes the order of packages seems to matter

--no-scripts flag prevents running any packages

$ composer install --no-scripts

Composer is pretty slow

Prestissimo

https://github.com/hirak/prestissimo

$ composer global require hirak/prestissimo

Additionally

--no-update

Avoid using Sudo

Permissions get borked and you may need to clear the entire Composer cache of files to fix. Usually your error is in something else.

Build your own packages

$ composer init

http://phppackagechecklist.com/

Add your package to Packagist

First, sign up for a Packagist account. Submit-package

Then On Github:

Github-Service

Packagist-service Allow a few minutes for it to show up on Packagist

With great power, comes great responsibility

taylor

Frameworks that use Composer

Laravel
Symfony
FuelPHP
Codeigniter
CakePHP
Zend

Who doesn't use Composer?

Presentation made with Cleaver

https://github.com/jdan/cleaver

Markdown slides, easy, classy