PowerPoint Presentation

Prepared by: Harshit Gupta

A Presentation on Industrial Training done @ BHEL, Jhansi

On PHP.

About the company

Owned by Government Of India. Established in 1964.

An power plant equipment manufacturer & operates as an engineering & manufacturing company, based in New Delhi, IN.

Indias largest engineering & manufacturing company of its kind.

Has been conferred with Maharatna status by GOI.

Engaged in core sectors Power, Transmission, Industry, Transportation, Renewable Energy, Oil & Gas and Defense.

7th Largest power equipment manufacturer in the world.

Placed at 4th place in Forbes Asias Fabulous 50 List in 2010.

Ranked 9th in most innovative company in the world by US Business Magazine Forbes in 2011.

& much more.

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Beginning with PHP.

Level: Beginner

[PHP Hypertext Preprocessor]

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Topics to be Covered

1. What is PHP ?

2. Basics of PHP.

3. Writing simple programs in PHP.

4. Why use PHP ?

5. More on PHP programming.

6. Retrieving data from the client.

7. Designing forms.

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PHP is a cross-platform, HTML-embedded, server-side web scripting language

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Cross-platform

You can run most PHP code, without alteration, on computers running many different operating systems. A PHP script that runs on Linux will generally run on Windows as well.

HTML-embedded

PHP code is written in files containing a mixture of PHP instructions and HTML code.

Server-side

The PHP programs we write are run on a server specifically, a web server.

A web scripting language

We run PHP programs via a web browser. We access the web server on which they reside, and this runs the program, sending any resulting output back to the browser.

Some basic PHP concepts

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It's a programming language for building dynamic, interactive web sites.

PHP stands for recursive acronym PHP Hypertext Preprocessor

Originally devised by Rasmus Lerdorf way back in 1994.

My First PHP Program!

Hands on experience

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Basic code in text editor

My First page

hello.php

How it looks on web browser

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Example 1

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Why use PHP ?

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Browser processes HTML and displays page

Delivering a web page

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Architecture of Web application

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Features of PHP

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Its an open source programming language. No input resources are required while working with PHP. No additional environment for programming is required in PHP.

Script is used in PHP to write the instructions that allow pages to be created dynamically. Advantages of scripting:

1) customizing web pages for a particular browser,

2) personalizing information, and utilizing a particular profile for each individual,

3) generating graphics that pure HTML returns.

What makes PHP different to JavaScript, or just plain HTML, is the fact that it is executed on the server, not the browser.

Variables in PHP

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$variable_name=value;

Note :

$variable_name$Variable_name

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Variable types

string (text) example, $name=employee

integer (numeric) example, $value=100

double (numeric)

Array

Object

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Basic code in text editor

simple_interest.php

How it looks on web browser

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Example 2

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Getting data from the client

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Retrieving data through HTML forms

Text fields

Checkboxes

Radio buttons

Listboxes

option1

Passwords

Submit and Reset buttons

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FORM Attributes

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ACTION-tells the server which page to go to once the user has clicked a submit button on the form.

...

METHOD-controls the way that information is sent to the server. It can do this in one of two ways-GET and POST

ID, CLASS, DIR,LANGUAGE, NAME, STYLE, and TITLE

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GET and POST

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GET

The browser append the values the user placed on the form to the URL by adding a question mark to the end of the URL to denote where the URL finishes and the form information starts. The information is transmitted in the form of name/value pairs.

POST

Information in the form is sent in the body of the HTTP request, rather than as part of the URL. This means that it isn't visible to everybody, because it isn't attached to the URL.

Employee Online Information System

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Thank you for your attention

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2014 | Harshit Gupta

SRM University

Chennai, IN

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