COMPOSERA PHP dependency manager

Who am I?• Ujjwal Ojha• BSc. CSIT• Hrevert Technologies• Web application development

Table Of Contents• Introduction• What is dependency?• Why not Pear?• Installation• Basic Usage

Introduction• PHP dependency manager

• Very useful to work with third party libraries

• Similar to npm for node.js, Bundler for Ruby, or pip for Python

What is dependency?

Recursive Dependencies

Two Way Recursive Dependencies

Why not Pear?• Pears installs packages globally

• With Pear, your code is scattered throughout the machine.

Installation

mkdir myprojectname

cd myprojectname

curl -s https://getcomposer.org/installer | php

Create composer.json

php composer.phar install

{"require": {

"silex/silex": "~1.0"}

}

Loading composer repositories with package informationInstalling dependencies- Installing psr/log (1.0.0)Loading from cache- Installing symfony/routing (v2.2.1)Downloading: 100%- Installing symfony/http-foundation (v2.2.1)Downloading: 100%- Installing symfony/event-dispatcher (v2.2.1)Loading from cache- Installing symfony/http-kernel (v2.2.1)Downloading: 100%- Installing pimple/pimple (v1.0.2)Downloading: 100%- Installing silex/silex (v1.0.0)Downloading: 100%Writing lock fileGenerating autoload files

Your dependencies dependency

Your dependency

Autoloading

Composer generates an

autoload file for all your

Dependencies

AutoloaderSupports

PSR-0 AutoloaderPSR-4 Autoloader

Classmap Autoloader

Autoloader usage

<?php// From your app`s bootstrap.phpinclude “vendor/autoload.php”;

Scripts

Perform custom actions during installation and update

"scripts": { "post-install-cmd": [

"Sensio\\...Composer\\ScriptHandler::buildBootstrap","Sensio\\...Composer\\ScriptHandler::clearCache","Sensio\\...Composer\\ScriptHandler::installAssets","Sensio\\...Composer\\

ScriptHandler::installRequirementsFile" ], "post-update-cmd": [

“Sensio\\...Composer\\ScriptHandler::buildBootstrap","Sensio\\...Composer\\ScriptHandler::clearCache","Sensio\\...Composer\\ScriptHandler::installAssets","Sensio\\...Composer\\

ScriptHandler::installRequirementsFile" ]},

Non-composer packages{ "repositories": [ { "type": "package", "package": { "name": "smarty/smarty", "version": "3.1.7", "dist": { "url": "http://www.smarty.net/files/Smarty-3.1.7.zip", "type": "zip" }, "source": { "url": "http://smarty-php.googlecode.com/svn/", "type": "svn" } } } ]}

Private dependencies with Satis

{ "repositories": [ { "type": "composer", "url": "http://packages.example.org/" } ], "require": { "company/package": "1.2.0", "company/package2": “1.5.2", } }

Thank You

Questions?

Ujjwal Ojha