PHP – Module 2
Hussain Fakhruddin
hussulinux@gmail.com

Recap from Module-1
● Client Server Model
● HTML / XHTML
● Request – Replies and Protocols
● Overview of PHP's capabilities
● Why Use PHP (10 Reasons to use PHP)
● PHP Vs JS

Agenda
● Open Source Concepts
● Obtaining, Installing and Configuring PHP
● Obtaining PHP Source Code
● Installing PHP from Binary Packages
● Dynamic Extensions, Checking Install with
phpinfo() Function.

Just before we begin
● Inventor of PHP
Rasmus Lerdorf

PHP Facts:
● According to a survery of
47,173,415 domains,
15,205,474 had PHP installed.

Lets get back!
● Open Source Poll
How many of you would give away your
piece of software to a person for FREE
without charging anything, absolutely
NOTHING?

About Open Source
● Richard Stallman Story
● Unix / Linux Systems
● Freeware VS Free software

Why Open Source
● Give it free for Students/ Researchers/ IT
people for growth of knowledge base and
form a community
● Corporates are anyway going to pay
● Separate levels of Licenses. GNU GPL,
LGPL etc.
● PHP's License is called PHP license

How to get PHP
● Various Means of obtaining PHP
● 1) Internet
● www.php.net
● 2) Software bundled packages
● WAMP, XAMPP
● 3) Linux/Unix Distros
● Fedora, CentOS, Ubuntu
● 4) Utilities CDs with magazines
● Pcmags etc

Before that...
● What do you need to start a website:
● A Web server
● PHP Parser
● Configurations

Before that...
● What do you need to start a website:
● A Web server – Apache, 85% of the Internet
runs on Apache.
● PHP Parser – PHP Preprocessor
● Configurations – PHP.INI, HTTPD.CONF

Some know how of PHP
● Latest version : PHP 5.X.X
● Official Website: www.php.net
● Official Help: PHP Manual
● http://www.php.net/manual/en/
● Official Download Page:
● http://www.php.net/downloads.php

PHP
Download
Page

PHP Structure

rd
3 Party Tools
● Two most popular bundles:
● WAMP: Windows, Apache, MySQL & PHP
● XAMPP: Apache Friends

WAMP
● Obtain from:
● www.wampserver.com
● For Windows only
● Excellent for Starting
up and advance
simple usage

XAMPP
● Download from:
● http://www.apachefri
ends.org
● Very High end.
● Not for starters,
but yes for pros
● Linux and Windows
both

Installation of WAMP- Demo

PHP Extensions
● What are they?
● They are Addons on PHP
● They add extra features to PHP Parsers.
● Example: Creating A PDF, Creating an Image
● Most famous is : PEAR (We'll do it later) and
Zend Engines - We wont do this :(

Some PHP Extensions

Summary
● We discussed :
● Open Source and its Philosophy
● PHP and important Links
● Obtained PHP from various places
● Installing PHP
● Installing 3rd Party bundled kit.
● PHP extensions

Next on Schedule:
● Hello World Program in PHP
● PHP Tags and Embedding HTML
● Simple PHP Script examples
● PHP and HTTP Environment Variables.
See you tomorrow :)