Web Development

BY : KARTIK : http://www.kar2905.wordpress.comPRATIK : http://pratik3d.blogspot.comSAURABH : saurabh-suman@hotmail.com

HTML ( A Fast run through)

MYSQL

PHP

Login Script Demonstration

HYPER TEXT MARKUP LANGAUGE

DEVELOPED BY : World Wide Web Consortium & WHATWG

Type code : TEXT

Extended from : SGML

Extended to : XHTML

Standard(s) : W3C HTML 4.01 W3C HTML 3.2

In short it is the language used to design Web Pages

Use any text editor

Gedit, Notepad++, Notepad,..

Save as .htm or .html extension

A tag is : Non-hierarchical keyword or term assigned to a piece of information

< > - Opening Tag

- Closing Tag

The element content is everything between the start and the end tag ( Hello )

Some HTML elements have empty content(
)

Most HTML elements can have attributes

Its not case sensitive eg means the same as . But W3C (?) recommends lower case

My first web page

Hello everyone

The element defines the whole HTML document.

The element has a start tag and an end tag

The element content is another HTML element (the body)

The element defines the head of the HTML document

The element has a start tag and an end tag

The element content is another HTML element (title of the webpage)

The element defines the body of the HTML document

The element has a start tag and an end tag

The element content is another HTML element (a paragraph)

This is a paragraph

This is a heading

Various headings

< a href=google.com>This is a link

: is used to give a line break

: is used to give a horizontal line

BOLD

ITALICS

Big Text

This is subscript and superscript

This is computer output

BOLD

Many more tags .. http://www.w3schools.com/tags/default.asp

HTML elements can have attributesAttributes provide additional information about the elementAttributes are always specified in the start tagAttributes come in name/value pairs like: name="value"Standard attributes : class ,id , style ,title

Attributes

style="background-color:yellow"style="font-size:10px"style="font-family:Times"style="text-align:centerExamples :

name of textbox

ASSIGNMENT

Getting Started: PHP-MySQL

Create a Connection to a MySQL Database

mysql_connect(servername,username,password);

Eg;

Closing the Connectionmysql_close($con);

$sql=CREATE DATABASE database_name;mysql_select_db("my_db", $con);

$sql = "CREATE TABLE Persons

(

personID int NOT NULL AUTO_INCREMENT,

PRIMARY KEY(personID),

FirstName varchar(15),

LastName varchar(15),

Age int

)";

mysql_query($sql);

All other MySQL commands can be executed like :

$sql= The command here

$mysql_query($sql);

Other Commands

$sql= MySQL command;

$result=mysql_query($sql);

$row=mysql_fetch_array($result);

$num=mysql_num_rows($result);

SESSIONS AND COOKIES

Used to identify a user

Cookies are saved in the client's computer

Sessions are destroyed once the browser is closed

COOKIES

setcookie(name, value, expire, path, domain);

echo $_COOKIE["user"];

if (isset($_COOKIE["user"]))

setcookie("user", "", time()-3600);

SESSIONS

session_start();

$_SESSION['views']=1;

if(isset($_SESSION['views']))

{ echo $_SESSION['views'] ; }

unset($_SESSION['views']);

session_destroy();

LOGIN SCRIPT DEMONSTRATION ....from scratch

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