What can Server Scripts Do?

• Dynamically edit, change or add any content to a Web page

• Respond to user queries or data submitted from HTML forms

• Access any data or databases and return the result to a browser

• Customize a Web page to make it more useful for individual users

• Provide security since your server code cannot be viewed from a browser

14. What is xampp?

XAMPP stands for “X (as in “cross-platform”), Apache, MySQL, PHP, Perl” and is a “solution stack package” that installs each of those items (don’t you just love techno-jargon?).  Similarly there exists a WAMP, MAMP, and LAMP, standing for Windows, Mac, and Linux, respectively.  I believe they condense the “P” to PHP/Perl/Python because Python is additionally included in the stack, whereas it’s not in XAMPP.

15. What is dom html?

In the HTML DOM (Document Object Model), everything is a node:

• The document itself is a document node

• All HTML elements are element nodes

• All HTML attributes are attribute nodes

• Text inside HTML elements are text nodes

• Comments are comment nodes

16. What is php?

• PHP is an acronym for "PHP Hypertext Preprocessor"

• PHP is a widely-used, open source scripting language

• PHP scripts are executed on the server

• PHP costs nothing, it is free to download and use

17. What is MySql? and What is Queries?

• MySQL is a database system used on the web

• MySQL is a database system that runs on a server

• MySQL is ideal for both small and large applications

• MySQL is very fast, reliable, and easy to use

• MySQL supports standard SQL

• MySQL compiles on a number of platforms

• MySQL is free to download and use

• MySQL is developed, distributed, and supported by Oracle Corporation

• MySQL is named after co-founder Monty Widenius's daughter: My

Queries

A query is a question or a request.

We can query a database for specific information and have a recordset returned.

Look at the following query (using standard SQL):

SELECT LastName FROM Employees

19. Show how to create db in sql? Create a Database

The CREATE DATABASE statement is used to create a database table in MySQL.

We must add the CREATE DATABASE statement to the mysqli_query() function to execute the command.

The following example creates a database named "my_db":

<?php $con=mysqli_connect("example.com","peter","abc123");

// Check connection if (mysqli_connect_errno())   {  echo "Failed to connect to MySQL: " . mysqli_connect_error();  }

// Create database $sql="CREATE DATABASE my_db"; if (mysqli_query($con,$sql))   { echo "Database my_db created successfully"; } else {  echo "Error creating database: " . mysqli_error($con); } ?>

20. Show how to create Table in sql? The sql create table Statement

The CREATE TABLE statement is used to create a table in a database.

Tables are organized into rows and columns; and each table must have a name.

Sql create table Syntax

CREATE TABLE table_name ( column_name1 data_type(size), column_name2 data_type(size), column_name3 data_type(size), .... );

The column_name parameters specify the names of the columns of the table.

The data_type parameter specifies what type of data the column can hold (e.g. varchar, integer, decimal, date, etc.).

The size parameter specifies the maximum length of the column of the table.