PHP is acronymed as PHP:hypertext preprocessor. It is a server side scripting language used to create web apllications

1. INTRODUCTION TO PHP
Acronym of PHP
Types of Applications Developed using PHP.
What is a Web Application.
What is Client-Server Methodology.
Roles of PHP.
Where PHP Programs are placed.
Features of PHP.
PHP Documentation

2. PHP
 PHP is a scripting language.
 PHP stands for “PHP: Hypertext preprocessor” and
again PHP stands for “Personal Homepage”.
 It is Recursive Acronym

3. TYPES OF APPLICATIONS DEVELOPED USING
PHP
 PHP is used for developing three of Applications
a)Command-line scripting.
b)Desktop /GUI Based Applications
c)Web Applications
NOTE : The main purpose of PHP is used to develop
a Web Application

4. WHAT IS A WEB APPLICATION
 A web Application is a Request-Response
Mechanism or Client-Server Methodology

5. WHAT IS CLIENT-SERVER METHODOLOGY?
 Client-sideProgramme:  Server side Programme:
A Programme present in A Programme present in
the client machine to the server machine to
send a re quest to the receive the Request from
server and also to get client, to process the
response from server is request and also to send
known as client side an appropriate response
programme back to client is known as
Eg:-Web browser server side programs
Such as: chrome, firefox,
safari etc.

6. ROLE OF PHP
PHP is used for developing server side Applications
like
ASP, JSP, ColdFusion etc

7. WHERE PHP PROGRAMS ARE PLACED?
 PHP programs are placed in a webserver.
 A webserver is the server machine capable of
receiving client’s request and every web server is
identified with a port
 Example: 127.0.0.1 also called as “localhost”

8. FEATURES OF PHP
 PHP Applications can be deployed or placed in
most of the webservers
 PHP is open source, that means PHP can be
downloaded and can be used FREE of cost.
 PHP can work with most of the Database server
like MYSQL , ORACLE , SQL SERVER etc
 PHP Applications are platform Independent.

9. PHP DOCUMENTATION
 It has good Documentation and tutorials with
Examples and you can find user Submitted
Examples too
 The Website address of PHP is http://www.php.net