The document discusses Symfony2, an open-source PHP web application framework. It describes Symfony2 as a set of decoupled components that form a full-stack framework. It also discusses key Symfony2 concepts like bundles, the service container, and the anatomy of a request from the reverse proxy to controller response. The document promotes Symfony2's support for caching dynamic content through edge side includes and client side includes.

1. Starting with

2. About Me
● Kevin Bond
● Kitchener, Ontario
● PHP Developer
– Symfony2 core/docs contributor
kevinbond@gmail.com
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3. What is Symfony2?
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4. What is Symfony2?
● Set of stand-alone, decoupled components
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5. What is Symfony2?
● Set of stand-alone, decoupled components
● Full-stack framework based on these
components
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6. 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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7. 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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8. Projects using Symfony2
● Assetic (Process)
● Doctrine2 (Console)
● PHPUnit (Yaml)
● Behat
● Silex
● Drupal 8
● Propel
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9. 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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10. What Symfony2 is not
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11. What Symfony2 is not
MVC Framework
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12. What Symfony2 is not
MVC Framework
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13. HTTP Framework
Request Response
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14. 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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15. 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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16. Useful Bundles
● FOSUserBundle
● FOSFacebookBundle
● KnpMenuBundle
● SonataAdminBundle
● FOSJsRoutingBundle
● OAuthBundle
● JMSI18nRoutingBundle
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17. Anatomy of a Request
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18. Anatomy of a Request
● Request
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19. Anatomy of a Request
● Request
● Kernel
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20. Anatomy of a Request
● Request
● Kernel
● Controller
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21. Anatomy of a Request
● Request
● Kernel
● Controller
● Response (html, json, xml, etc...)
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22. Anatomy of a Request
● Request
● Kernel
● Controller
● Exception?
● Response (html, json, xml, etc...)
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23. Service Container

24. Get Started
curl -s http://getcomposer.org/installer | php
composer.phar create-project symfony/framework-standard-edition path/to/install
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25. Demo

26. “Killer” Feature
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27. “Killer” Feature
Symfony2 Reverse Proxy
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28. 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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29. Symfony2 Reverse Proxy
● Request
● Kernel
● Controller
● Response (html, json, xml, etc...)
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30. Symfony2 Reverse Proxy
● Request
● Reverse Proxy
● Kernel
● Controller
● Response (html, json, xml, etc...)
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31. Symfony2 Reverse Proxy
● Request
● Reverse Proxy
● Kernel
● Controller
● Response (html, json, xml, etc...)
● Set s-maxage header
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32. Symfony2 Reverse Proxy
● Request
● Reverse Proxy
● Cached version?
● Kernel
● Controller
● Response (html, json, xml, etc...)
● Set s-maxage header
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33. Caching Dynamic Content
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34. Caching Dynamic Content
● Sub-requests
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35. Caching Dynamic Content
● Sub-requests
● ESI – Edge Side Includes
– Server side sub-requests
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36. Caching Dynamic Content
● 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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37. 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
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