Starting with Symfony2

Starting with

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About Me

● Kevin Bond● Kitchener, Ontario● PHP Developer

– Symfony2 core/docs contributor

[email protected]

mailto:[email protected]

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What is Symfony2?

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What is Symfony2?

● Set of stand-alone, decoupled components

@zenstruck

What is Symfony2?

● Set of stand-alone, decoupled components● Full-stack framework based on these

components

@zenstruck

What is Symfony2?

● Set of stand-alone, decoupled components● Full-stack framework based on these

components● Community

● Forum/Mailing List/IRC (#symfony on Freenode)● 3rd party bundles (knpbundles.com)● 5000+ watchers / 1300+ forks● 560+ unique contributors

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Symfony2 Components

DependencyInjection

EventDispatcher

HttpFoundation

DomCrawler

ClassLoader

CssSelector

HttpKernel

BrowserKit

Templating

Translation

Serializer

Validator

Security

Routing

Console

Process

Config

Finder

Locale

Yaml

Form

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Projects using Symfony2

● Assetic (Process)● Doctrine2 (Console)● PHPUnit (Yaml)● Behat● Silex● Drupal 8● Propel

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Why use Symfony2?

● Fast● PHP 5.3● Well engineered (no singletons)● Forces* best practices● Extensible and flexible● Stable and established● Testable

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What Symfony2 is not

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What Symfony2 is not

MVC Framework

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HTTP Framework

Request Response

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HTTP Framework

Request Response

I don't like MVC because that's not how the web works. Symfony2 is an HTTP framework; it is a Request/Response framework. That's the big deal. The fundamental principles of Symfony2 are centered around the HTTP specification. - Fabien Potencier

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Bundles

● Everything is a bundle (even the framework is a collection of core bundles)

● Bundles contain:● Configuration/Translations/Documentation● Routes/Controllers/Views● Public resources (js/css/images)● Services/Events/Models/Forms etc (* don't make your bundle a library)● Tests● NOT VENDOR LIBS

● Override with child bundle● 690+ bundles on knpbundles.com

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Useful Bundles

● FOSUserBundle● FOSFacebookBundle● KnpMenuBundle● SonataAdminBundle● FOSJsRoutingBundle● OAuthBundle● JMSI18nRoutingBundle

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Anatomy of a Request

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● Request

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● Request● Kernel

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● Controller

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● Controller

● Response (html, json, xml, etc...)

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● Controller● Exception?

● Response (html, json, xml, etc...)

Service Container

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Get Started

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

composer.phar create-project symfony/framework-standard-edition path/to/install

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“Killer” Feature

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“Killer” Feature

Symfony2 Reverse Proxy

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3 Types of HTTP Cache

● From the docs:● Browser caches: Every browser comes with its own local cache that

is mainly useful for when you hit "back" or for images and other assets. The browser cache is a private cache as cached resources aren't shared with anyone else.

● Proxy caches: A proxy is a shared cache as many people can be behind a single one. It's usually installed by large corporations and ISPs to reduce latency and network traffic.

● Gateway caches: Like a proxy, it's also a shared cache but on the server side. Installed by network administrators, it makes websites more scalable, reliable and performant.

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● Request● Kernel● Controller● Response (html, json, xml, etc...)

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● Request● Reverse Proxy● Kernel● Controller● Response (html, json, xml, etc...)

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● Request● Reverse Proxy● Kernel● Controller● Response (html, json, xml, etc...)

● Set s-maxage header

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● Request● Reverse Proxy

● Cached version?

● Kernel● Controller● Response (html, json, xml, etc...)

● Set s-maxage header

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Caching Dynamic Content

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● Sub-requests

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● Sub-requests● ESI – Edge Side Includes

– Server side sub-requests

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● Sub-requests● ESI – Edge Side Includes

– Server side sub-requests● CSI – Client Side Includes (new in 2.1)

– Uses javascript (hinclude.js)– Client side sub-requests

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Resources

● github.com/kbond/gpug-symfony2● symfony.com (docs/cookbook)● fabien.potencier.org● knpbundles.com● richardmiller.co.uk● knpuniversity.com● connect.sensiolabs.com● live.symfony.com● mnot.github.com/hinclude

Starting with Symfony2

Technology

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