This document discusses web development and Facebook's technology stack. It begins with an introduction to open source software and web development basics. It then covers PHP and how Facebook uses open source technologies like Linux, Apache, MySQL, and PHP (LAMP stack) across its infrastructure. Specifically, it discusses how Facebook uses PHP HipHop, a source code transformer that compiles PHP into highly optimized C++ code, to improve performance of its sites and applications.

1. Web Development
Facebook Technology

2. DAY AGENDA
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Open source software “OSS”

Introduction to web development

Web programming

Introduction to PHP

Facebook uses open source technologies

PHP HipHop

3. Open source software “OSS”

4. Open source software “OSS”

What is OSS ?

Advantages of OSS

Widely used open source products

5. What is OSS ?

Computer software that is available in source code
form.

The term open source describes practices in
production and development that promote access
to the end product's source materials.

Open source software is very often developed in a
public

6. OSS History

7. rechered stallman “Freedom”

8. Advantages of OSS

9. Widely used Open source products

Linux operating system

Redhat

Ubuntu

SUSE

Apache web server

Firefox

MySQL DBMS

PHP
and more …..

10. Web Development

11. Introduction to web development

What is web development ?

Web application Vs website

Web development advantages and disadvantages

What are technologies needed to be a developer

How To Start ?

12. What is web development?
●Web development is a broad
term for the work involved in
developing a web site or web
application for the Internet or
for private network.
●Web development can range
from developing the simplest
static single page of plain text
to the most complex web-
based Internet applications

13. Web application VS Website

Web application 
Web site

An application 
Collection of web
uses web pages.
technologies 
Contains images ,

All processing are videos, and
made in the other digital
server side assets.

Accessed form 
Must be hosted on
web browser the Internet.

Can't contain 
It may be static or
static web dynamic.
pages

Must use

14. Web development advantages

No special configuration or changes are need on user's PCs.

Lower costs.

Centralized data is secure and easy to backup.

Updates can be made quickly and easily.
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Information is accessible to a wide audience anywhere in the world.
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Available 24 hours a day, 7 days a week.

Always up-to-date.

15. Web development disadvantages
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Slower, as it runs over the Internet

Can take longer to develop

As they are more complex.

As the site or application have to work on
different browsers, and different versions of
browsers.

Security risks

16. Needed technologies to be a developer

17. How TO Start / Where To Go

Start with studying technologies in this sequence
1. Apache web server basics
2. HTML / CSS
3. JavaScript
4. MySQL DBMS
5. PHP web programing language

Go To one of the following
1. Self study. (It takes long time)
2. Pi-Technologies (It takes 20 days + basic work experience)

18. Web Programming

19. Web programming
What is web programming ?

Types of web programming

Web servers

Types of web servers

Web servers market share


20. What is web programming?
Web server
Send
request
Application / Website
Web Programming
• Code
• Database
• files
• precompiled
programs

21. Types of web programming

Server side programming

PHP

Perl

CGI

Python

ASP.NET

Client side programming

JavaScript

Action script

22. Web servers

A web server is a computer program that delivers content to
the end user .

The term web server can also refer to the computer or
virtual machine running the program.

commonly a web browser makes a request for a specific
resource using HTTP.

While the primary function is to serve content, a full
implementation of HTTP also includes a way of receiving
content from clients.

23. Web servers

Active web servers market share

24. Introduction to PHP

25. Introduction to PHP

What is PHP?

PHP Vs. ASP

PHP advantages

PHP market share

26. What is PHP ?

PHP is a general purpose scripting language.

PHP originally designed for web development.
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PHP is a server side programming language.

PHP programs written using text editors.

HTML can be written inside the PHP code.

PHP can be embedded inside HTML.

27. PHP VS. ASP

Scalability and Ease of Maintenance

Performance and Speed

Cost

Support and Resources

Editors and Tools

Platform Independent

Popularity

28. PHP Advantages
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It's Free.

The beauty of PHP lies in its simplicity.

PHP doesn't use a lot of the system's resources.

PHP offers many levels of security.

PHP community.

integrates well across many platforms.

29. PHP market share

30. PHP basics

To make a great programs do the following

consistency
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frequent comments

the use of line numbers

31. Facebook Technology

32. Facebook Technology

Facebook has been developed from the ground up
using open source software.

Facebook has 30000 server

Facebook uses
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Linux

Apache

MySQL

PHP

33. Facebook Technology
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Lets Go Deeply In Facebook
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Facebook has three different layers for data

first layer is the database tier, which is the primary
data store and where MySQL sits.

Second layer is Facebook uses Memcached
caching technology.

Third layer is a Web server on top of that to serve
the data

Facebook uses Apache hadoop project

Facebook uses Apache Hive technology

34. PHP HipHop

What is HipHop ?

Why HipHop ?

35. PHP HipHop

What is PHP HipHop ?

HipHop for PHP isn't technically a compiler.

HipHop is a source code transformer.

HipHop transforms PHP code into highly optimized
C++

HipHop uses g++ to compile the resulted C++ code

36. PHP HipHop

Why PHP HipHop?

Improve the site or application performance

Free and open-source software

Save a lot of development time

Save resources

Save money

37. Finally Be a member of