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Practical ADWF

The document provides practical examples for application development using web technologies such as HTML, CSS, JavaScript, AJAX, PHP, and MySQL. It includes step-by-step instructions for installing WordPress, creating blogs, and managing various blog features like images, comments, and categories. Additionally, it covers essential coding practices and database interactions for web applications.

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0% found this document useful (0 votes)
17 views38 pages

Practical ADWF

The document provides practical examples for application development using web technologies such as HTML, CSS, JavaScript, AJAX, PHP, and MySQL. It includes step-by-step instructions for installing WordPress, creating blogs, and managing various blog features like images, comments, and categories. Additionally, it covers essential coding practices and database interactions for web applications.

Uploaded by

gamertechno902
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
You are on page 1/ 38

Application Development using Web

Framework Practical File

Practical-1
Practice examples on HTML, CSS, Java Script, Ajax,PHP &
MySql Example 1: HTML and CSS
HTML:
<div id="myDiv">
<h1>Hello, World!</h1>
<p>This is a practice example.</p>
</
div>
CSS:
#myDiv {
background-color:
yellow; padding: 20px;
}

h1 {
color: blue;
}

p{
font-size: 18px;
}
Explanation:
In this example, we have an HTML <div> element with the ID "myDiv."
Inside the div, we have an <h1> heading and a <p> paragraph. In the
CSS section, we target the "myDiv" ID and apply a yellow background
color and 20px padding. We also target the <h1> element and set its text
color to blue, and the <p> element with a font size of 18 pixels.
Example 2: JavaScript
<button onclick="myFunction()">Click Me</button>
<script>
function myFunction()
{ alert("Button clicked!");
}
</script>
Explanation:
In this example, we have an HTML button element with an onclick
attribute that calls the myFunction() JavaScript function. When the button
is clicked, the function is executed, and it displays an alert box with the
message "Button clicked!"

Example 3: AJAX and


PHP HTML:
<button onclick="loadData()">Load Data</button>
<div id="myData"></div>
<script>
function loadData() {
var xhr = new XMLHttpRequest();
xhr.onreadystatechange = function()
{
if (xhr.readyState === 4 && xhr.status === 200)
{ document.getElementById("myData").innerHTML =
xhr.responseText;
}
};
xhr.open("GET", "data.php", true);
xhr.send();
}
</script>
PHP (data.php):
<?php
$data = "This is the loaded
data."; echo $data;
?>
Explanation:
In this example, we have an HTML button element with an onclick
attribute that calls the loadData() JavaScript function. When the button is
clicked, an AJAX request is made to the "data.php" file. The PHP file simply
assigns a string to the $data variable and echoes it back as the response.
The JavaScript function handles the AJAX response and updates the
content of the <div> element with the received data.

Example 4: PHP and MySQL


PHP:
<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

$conn = new mysqli($servername, $username, $password,


$dbname); if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT * FROM users";


$result = $conn->query($sql);

if ($result->num_rows > 0) {
while ($row = $result->fetch_assoc()) {
echo "ID: " . $row["id"] . " - Name: " . $row["name"] . "<br>";
}
} else {
echo "No users found.";
}

$conn->close();
?>
Explanation:
In this example, we establish a connection to a MySQL database using
PHP's MySQLi extension. You need to replace the placeholders with your
actual database credentials. We execute a simple SELECT query to
retrieve data from the "users" table. If there are rows returned, we loop
through each row and echo the ID and name. If no users are found, we
display a "No users found" message. Finally, we close the database
connection.
Example 5: HTML Form with JavaScript Validation
<form onsubmit="return validateForm()">
<input type="text" id="name" placeholder="Enter your name"
required>
<input type="email" id="email" placeholder="Enter your email"
required>
<button type="submit">Submit</button>
</form>
<script>
function validateForm() {
var name =
document.getElementById("name").value; var
email =
document.getElementById("email").value;

if (name === "" || email ===


"") { alert("Please fill in all
fields."); return false;
}

// Additional validation rules...


return true;
}
</script>
Explanation:
In this example, we have an HTML form with two input fields for name and
email. The onsubmit attribute is set to the JavaScript function
validateForm(). When the form is submitted, the function is called to
perform form validation. The function retrieves the values of the name
and email fields, checks if they are empty, and displays an alert if any
field is blank. Additional validation rules can be added as per your
requirements.

Example 6: AJAX Post Request with PHP


Processing HTML:
<button onclick="postData()">Send Data</button>
<script>
function postData() {
var xhr = new
XMLHttpRequest(); var data =
new FormData();
data.append('name', 'John');
data.append('email',
'john@example.com');
xhr.onreadystatechange = function()
{
if (xhr.readyState === 4 && xhr.status === 200) {
console.log(xhr.responseText);
}
};
xhr.open("POST", "process.php",
true); xhr.send(data);
}
</script>
PHP (process.php):
<?php
$name = $_POST['name'];
$email = $_POST['email'];

// Process the data, perform database operations, etc.

$response = "Data received: Name - $name, Email -


$email"; echo $response;
?>
Explanation: In this example, we use AJAX to send data to the server using
a POST request. When the button is clicked, the JavaScript function
postData() is executed. The function creates an XMLHttpRequest object,
appends data to a FormData object, and sends the data to the PHP
processing script. In the PHP script, we retrieve the data using the $_POST
superglobal, perform necessary processing or database operations, and
generate a response. The response is then sent back to the client and
logged to the console.
Example 7: MySQL Database Insertion
with PHP HTML:
<form method="POST" action="insert.php">
<input type="text" name="name" placeholder="Enter your name">
<input type="email" name="email" placeholder="Enter your email">
<button type="submit">Submit</button>
</form>
PHP (insert.php):

<?php
$servername = "localhost";
$username = "your_username";
$password = "your_password";
$dbname = "your_database";

$name = $_POST['name'];
$email = $_POST['email'];

$conn = new mysqli($servername, $username, $password,


$dbname); if ($conn->connect_error) {
die("Connection failed: " . $conn->connect_error);
}
$sql = "INSERT INTO users (name, email) VALUES ('$name', '$email')";

if ($conn->query($sql) === TRUE)


{ echo "New record created
successfully";
} else {
echo "Error: " . $sql . "<br>" . $conn->error;
}
$conn->close();
?>
Explanation: In this example, we have an HTML form with input fields for
name and email. When the form is submitted, the data is sent to the PHP
script "insert.php" for processing. In the PHP script, we retrieve the name
and email values using the $_POST superglobal. We establish a database
connection using MySQLi and insert the data into the "users" table. If the
insertion is successful, we display a success message. Otherwise, we
display an error message along with the error details.
Practical-2
To Install WordPress & Create Blogs
Installing WordPress involves several steps. Here's a detailed guide on
how to install WordPress:
Step 1: Choose a Hosting Provider To start, you'll need a web hosting
provider that supports PHP and MySQL, which are the technologies
WordPress is built on. Some popular hosting providers that meet these
requirements are Bluehost, SiteGround, and DreamHost.
Step 2: Domain and Hosting Setup If you don't have a domain name yet,
you can register one through your hosting provider. Otherwise, you can
point your existing domain to your hosting account.
Step 3: Accessing Your Hosting Account Once your domain and hosting
are set up, you'll receive login details for your hosting account. Typically,
you'll access your hosting account through a web-based control panel
such as cPanel.
Step 4: Create a Database WordPress requires a database to store all your
website's content. In your hosting control panel, look for the MySQL
Databases section and create a new database. Note down the database
name, username, and password as you'll need them later.
Step 5: Download WordPress Visit the official WordPress website
(wordpress.org) and download the latest version of WordPress. It will be
downloaded as a ZIP file to your computer.
Step 6: Upload WordPress Files Using an FTP client (such as FileZilla),
connect to your web hosting account and navigate to the root directory of
your domain (usually called "public_html" or "www"). Extract the
WordPress files from the ZIP archive and upload them to your server.
Step 7: Configure wp-config.php In the root directory of your WordPress
installation, you'll find a file named "wp-config-sample.php". Make a copy
of this file and rename it to "wp-config.php". Open the file in a text editor
and enter the database details (database name, username, and password)
you created earlier. Save the changes.
Step 8: Run the WordPress Installation Script Open a web browser and
enter your domain name in the address bar. You should see the
WordPress installation wizard. Select your preferred language and click
"Continue." On the next page, enter the site title, username, password,
and email address for your WordPress admin account. Click "Install
WordPress" to proceed.
Step 9: Complete the Installation WordPress will set up your website and
create the necessary database tables. Once the installation is complete,
you'll see a success message. Click on the "Log In" button to access your
WordPress admin dashboard.
Step 10: Log in to WordPress Enter the username and password you
created during the installation process and click "Log In." You'll be
redirected to the WordPress admin dashboard, where you can customize
your site, install themes and plugins, and create content.
Creating a blog in WordPress involves several steps. Here's a detailed
guide to help you get started:
1. Sign up for a WordPress.com account or Install WordPress.org:
 WordPress.com: If you want a hosted solution, visit
wordpress.com and sign up for an account.
 WordPress.org: If you want a self-hosted solution, download
the WordPress software from wordpress.org and install it on
your web hosting provider.
2. Choose a domain name and hosting (for self-hosted WordPress):
 If you're using WordPress.org, you'll need to choose a domain
name (e.g., myblog.com) and purchase hosting from a
provider like Bluehost, SiteGround, or GoDaddy.
3. Install WordPress (for self-hosted WordPress):
 If you're using WordPress.org, follow the installation
instructions provided by your hosting provider. Usually, it
involves uploading the WordPress files to your server and
setting up a database.
4. Log in to your WordPress dashboard:
 Once you've installed WordPress, you can access your blog's
admin area by visiting your domain name followed by "/wp-
admin" (e.g., myblog.com/wp-admin). Enter your username
and password to log in.
5. Choose a theme:
 WordPress offers a wide range of free and premium themes to
customize the appearance of your blog. Go to "Appearance" >
"Themes" in the dashboard and browse through the available
options. You can preview and activate a theme that suits your
blog's style.
6. Customize your blog's settings:
 In the WordPress dashboard, navigate to "Settings" to
configure various options such as site title, tagline, time zone,
permalink structure, and more. Explore each section and
customize the settings according to your preferences.
7. Install essential plugins:
 Plugins extend the functionality of your WordPress blog. Some
essential plugins include Yoast SEO (for search engine
optimization), Akismet (for spam protection), Jetpack (for site
stats and security), and WP Super Cache (for caching). Go to
"Plugins" > "Add New" to search for and install plugins.
8. Create and publish your first blog post:
 To write a blog post, go to "Posts" > "Add New" in the
WordPress dashboard. Enter a title for your post and start
writing in the editor. You can format text, add images, embed
videos, and more. Once you're satisfied, click the "Publish"
button to make your post live on your blog.
9. Create pages and menus:
 In addition to blog posts, you may want to create static pages
like "About," "Contact," or "Privacy Policy." Go to "Pages" >
"Add New" and create the pages as needed. Then, go to
"Appearance" > "Menus" to create a menu and add your
pages to it.
10. Configure blog settings and user roles:
 Explore the various settings available in the WordPress dashboard to
fine-tune your blog. Set up categories and tags, manage comments,
configure reading settings, and customize user roles and
permissions.
11. Customize your blog further:
 WordPress allows extensive customization through widgets, custom
CSS, and additional plugins. Explore the "Appearance" section in the
dashboard to add widgets to your sidebar or footer, modify your
theme's CSS, and install additional plugins to enhance your blog's
functionality.
12. Promote and share your blog:
 Once your blog is up and running, promote it by sharing your posts
on social media platforms, engaging with your audience, and
optimizing your content for search engines. Consider integrating
social sharing buttons and implementing SEO best practices to drive
traffic to your blog.
Practical-3
Manage blogs features e.g. Images, Text Around Images, Comments, Post
Formats, Linking, Pages, Categories, Smilies, Feeds, Gravatars, Password
in WordPress in detail with explanation
WordPress is a powerful content management system (CMS) that offers a
range of features for managing blogs. Let's go through each of the
features you mentioned in detail:
1. Images: WordPress allows you to easily upload and insert images
into your blog posts. You can add images from your computer or
from external sources, and WordPress provides options for resizing,
aligning, and captioning images within your posts.
2. Text Around Images: With WordPress's built-in editor, you can easily
position and format text around images. This allows you to create
visually appealing blog posts by placing text alongside or wrapping
it around the images you insert.
3. Comments: WordPress has a native commenting system that
enables visitors to leave comments on your blog posts. You can
moderate and manage these comments, approve or disapprove
them, reply to comments, and even enable or disable comments on
specific posts or pages.
4. Post Formats: Post formats are predefined templates or styles that
allow you to present different types of content in various ways.
WordPress offers several post formats such as standard, gallery,
video, audio, quote, and more. Each format has a unique layout and
design, allowing you to showcase your content in a format that best
suits its nature.
5. Linking: WordPress makes it easy to create internal and external
links within your blog posts. You can link to other posts or pages
within your website, as well as link to external websites or
resources. This helps in enhancing the user experience and
improving navigation within your blog.
6. Pages: While blog posts are meant for timely and regularly updated
content, WordPress also provides the ability to create static pages.
Pages are ideal for content that doesn't change frequently, such as
an About Me page, Contact page, or a dedicated page for specific
information. Pages are organized separately from blog posts and
can be added to menus for easy navigation.
7. Categories: Categories allow you to group related blog posts
together based on common themes or topics. By assigning
categories to your posts, you can create a hierarchical structure
within your blog, making it easier for readers to find and navigate
through content that interests them.
8. Smilies: Smilies, also known as emoticons, are graphical
representations of facial expressions used to convey emotions in
written communication. WordPress includes a set of built-in smilies
that can be automatically converted into graphical icons when
specific character combinations are used in your blog posts or
comments.
9. Feeds: WordPress automatically generates RSS feeds for your blog
posts, which can be subscribed to by readers using feed readers or
RSS aggregators. Feeds allow users to stay updated with your latest
posts without having to visit your website directly.
10. Gravatars: Gravatars, or globally recognized avatars, are
profile pictures associated with email addresses. WordPress
integrates with Gravatar services, allowing users to associate their
email addresses with unique avatars. When users leave comments
on your blog, their Gravatar images are displayed alongside their
comments, providing a personalized touch.
11. Password: WordPress provides the option to password-protect
individual blog posts or pages. By setting a password, you can
restrict access to specific content and only allow authorized users to
view it. This is useful when you want to share private or exclusive
content with a selected audience.
Practical-4
Practice various designing features: Colour Scheme, Headers, CSS Horizontal
Menus, Dynamic Menu, Highlighting, Navigation Links, Print in WordPress
in detail with explanation
WordPress provides a range of design features to customize the appearance
of your website. Let's explore each of the features you mentioned in
detail:
1. Colour Scheme: WordPress allows you to choose and customize the
color scheme of your website. You can select from pre-defined color
palettes or create your own custom color scheme to match your
brand or personal preferences. The color scheme affects various
elements of your website, such as backgrounds, text, links, buttons,
and more.
2. Headers: WordPress themes typically include header options that
allow you to customize the header area of your website. This
includes adding a logo or site title, a tagline, and adjusting the
layout and design of the header section. You can choose from
different header styles and customize their appearance to create a
unique look for your site.
3. CSS Horizontal Menus: WordPress supports CSS (Cascading Style
Sheets) for styling your website. You can create horizontal menus
using CSS to enhance your site's navigation. By applying CSS styles
to the menu elements, you can control their appearance, including
the font, color, size, spacing, and positioning. This enables you to
create visually appealing horizontal menus that complement your
website design.
4. Dynamic Menu: WordPress provides a dynamic menu feature that
allows you to create menus that automatically update based on your
site's structure and content. You can easily add, remove, or
rearrange menu items from the WordPress admin dashboard. This
feature is particularly useful when you want to reflect changes in
your site's navigation without manually updating the menu each
time.
5. Highlighting: Highlighting refers to emphasizing specific content or
elements on your website. WordPress offers various methods to
highlight content, such as using different font styles (bold, italics),
colors, background highlights, or adding attention-grabbing
elements like call-to-action buttons or icons. Highlighting helps draw
attention to important information, key features, or actionable
elements within your website.
6. Navigation Links: Navigation links are essential for guiding visitors
through your website. WordPress allows you to create custom
navigation menus that can be placed in different locations on your
site, such as the header, footer, or sidebar. You can add links to
pages, posts, categories, custom URLs, or even specific sections
within a page (using anchor links). By organizing and labelling your
navigation links effectively, you can enhance the user experience
and make it easier for visitors to navigate your site.
7. Print: WordPress provides built-in print stylesheets that enable users
to print your website's content in a printer-friendly format. When
visitors use the print
function on your site, WordPress automatically applies the print
stylesheet, which removes unnecessary elements like menus,
sidebars, and advertisements, and optimizes the content for
printing. This ensures that your content is easily readable and well-
formatted when printed on paper.
8. WordPress's design features offer flexibility and customization
options, allowing you to create a visually appealing and user-friendly
website. By utilizing color schemes, customizing headers,
implementing CSS for horizontal menus, using dynamic menus,
highlighting important content, optimizing navigation links, and
providing a print-friendly experience, you can enhance the overall
design and functionality of your WordPress site.
Practical-5
Read More, Formatting Date and Time, Finding CSS Styles, Creating
Individual Pages, Uploading Files, Using WordPress Themes, Templates,
Template Tags, Template Hierarchy, Validating a Website, Know Your
Sources, WordPress Site Maintenance in detail with explanation

1. Read More: The "Read More" feature in WordPress allows you to


display a summary or teaser of your blog posts on archive pages,
with a link that visitors can click to read the full post. By inserting
the "Read More" tag in your post editor, you can control where the
content should be truncated. This feature helps improve the user
experience by providing a concise overview and allowing readers to
choose which posts they want to explore further.
2. Formatting Date and Time: WordPress offers functions and template
tags to format date and time according to your preference. You can
customize the format, including the order of day, month, year, and
time elements. WordPress provides default formats, but you can
also use PHP date and time formatting codes to create your own
custom date and time display.
3. Finding CSS Styles: To find CSS styles affecting specific elements in
your WordPress site, you can use your browser's built-in developer
tools. Right-click on the element you want to inspect, and choose
the "Inspect" or "Inspect Element" option. This will open the
developer tools panel, where you can view the HTML structure and
associated CSS styles for the selected element. This helps in
identifying the CSS classes, IDs, and styles applied to the element,
allowing you to customize or override them as needed.
4. Creating Individual Pages: In WordPress, you can create individual
pages to display static content separate from your blog posts. To
create a new page, you can go to the WordPress admin dashboard,
navigate to "Pages," and click on "Add New." From there, you can
give your page a title, add content using the built-in editor, and
customize the page attributes, such as the template, parent page,
or featured image. Pages are useful for creating essential sections
like About Us, Contact, or Services on your website.
5. Uploading Files: WordPress enables you to upload files and media to
your website easily. When creating or editing a post or page, you
can use the "Add Media" button to upload files from your computer
or select files from your media library. This feature allows you to
upload images, videos, audio files, documents, and more, which you
can then insert into your content, making it accessible to your site's
visitors.
6. Using WordPress Themes: Themes in WordPress control the overall
design, layout, and appearance of your website. You can choose
from a wide variety of free or premium themes available in the
WordPress theme repository or from third-party sources. Themes
define the visual styling of your site, including typography, color
schemes, page layouts, and more. They allow you to
customize the look and feel of your website without altering the
underlying content or functionality.
7. Templates and Template Tags: WordPress uses templates to
generate the structure and layout of different sections of your
website. Templates are PHP files that define how content is
displayed for specific purposes, such as the home page, individual
posts, pages, archives, categories, and more. Template tags, also
written in PHP, are used within these templates to fetch and display
dynamic content. Template tags provide a way to access
information like post title, content, date, author, and more, and
display them in a specific format.
8. Template Hierarchy: The template hierarchy in WordPress defines
the order in which templates are selected and used to display
different types of content. When a visitor accesses a specific page or
post, WordPress follows a predefined hierarchy to determine which
template file should be used. The hierarchy considers factors such
as the post type, page type, custom templates, and more. This
allows you to create specialized templates for specific content types
or override default templates as needed.
9. Validating a website: Validating a website involves checking the
markup and code of your website to ensure it adheres to web
standards and best practices. WordPress websites generate HTML
and CSS code dynamically, and sometimes errors or inconsistencies
can occur. Validating your website helps identify and fix any coding
errors, ensuring compatibility across different browsers and devices.
To validate your WordPress website, you can use online tools such as
the W3C Markup Validation Service and CSS Validation Service.
These tools analyze your website's HTML and CSS code and provide
a detailed report highlighting any errors or warnings. You can then
review the issues and make the necessary corrections in your theme
files or customizations.
By validating your website, you can improve its performance,
accessibility, and compatibility, leading to a better user experience
and optimized search engine visibility.
10. Know Your Sources: When managing a WordPress website, it's
important to be mindful of the sources you rely on for themes,
plugins, or code snippets. WordPress has a vast ecosystem of
themes and plugins created by developers from various sources,
including the official WordPress theme and plugin repositories,
reputable third-party marketplaces, and individual developers'
websites. It's recommended to obtain themes and plugins from
trusted sources to ensure they are well-maintained, regularly
updated, and secure.
Additionally, when using code snippets or tutorials from online sources,
verify the credibility and reliability of the information. Cross-
reference information from multiple sources and check user reviews
or community feedback. This helps ensure the code snippets or
tutorials you implement are accurate, secure, and compatible with
your WordPress version and setup.
11. WordPress Site Maintenance: Regular site maintenance is
crucial for the smooth operation and security of your WordPress
website. Here are some essential maintenance tasks:
12. Update WordPress Core, Themes, and Plugins: Keep your
WordPress installation, themes, and plugins up to date to benefit
from bug fixes, new features, and security patches.

13. Back up Your Website: Regularly back up your WordPress


website to safeguard your content and data. Backup solutions can
range from manual backups to automated backup plugins.

14. Monitor Website Security: Implement security measures such


as using strong passwords, limiting login attempts, installing a
security plugin, and monitoring for suspicious activity.

15. Optimize Website Performance: Regularly optimize your


website for speed and performance. This can include tasks like
optimizing images, cleaning up unnecessary files or plugins, and
caching your content.

16. Review and Test Website Functionality: Periodically review


your website's functionality, including forms, links, and interactive
elements, to ensure they are working correctly. Test your website
across different browsers and devices for consistent performance.

17. Clean Up Spam and Comments: Regularly moderate and clean


up spam comments and unwanted content from your website to
maintain a clean and engaging user experience.

By following a comprehensive maintenance routine, you can ensure


your WordPress website remains secure, up to date, and user-
friendly, providing a positive experience for both you and your
visitors.
Practical-6

Practical Name- Integrate PHP & MySql with WordPress

WordPress is built on PHP and uses MySQL as its database management system. Integrating
PHP and MySQL with WordPress allows you to leverage the power of these technologies to
create dynamic and interactive websites. Here's a detailed explanation of how PHP and
MySQL are integrated with WordPress:
PHP: PHP is a server-side scripting language that WordPress is primarily built upon. It
handles the dynamic generation of web pages by processing PHP code on the server before
sending the resulting HTML to the user's browser.
Within WordPress, PHP is used for various tasks, including:
1. Templating: PHP is used to create templates that define the structure and layout of
different parts of your WordPress site, such as headers, footers, sidebars, and content
areas. These templates are stored in theme files and are dynamically rendered when a
page or post is requested.
2. Handling User Input: PHP processes user input submitted through forms or other
interactions on your WordPress site. It allows you to validate and sanitize user input,
perform actions based on the input, and store the data in the database.
3. Accessing Database: PHP interacts with the MySQL database to retrieve, update, or
delete data. It executes SQL queries to fetch content such as posts, pages, comments,
and user information, and then formats and displays the data within the website's
templates.

4. Custom Functionality: PHP enables you to extend WordPress functionality by


creating custom functions, hooks, and filters. You can write PHP code in your theme's
functions.php file or create custom plugins to add new features, modify existing
behavior, or integrate with external services.
MySQL: MySQL is a widely-used open-source relational database management system. It
stores and manages structured data for your WordPress site, including posts, pages,
comments, user information, and more. MySQL provides efficient storage and retrieval of
data and supports powerful querying capabilities.
Within WordPress, MySQL is used for:
1. Storing Data: WordPress uses MySQL to store all content-related information, such as
posts, pages, comments, user profiles, and settings. Each piece of content is stored in
specific database tables with corresponding fields for attributes like title, content,
author, publication date, etc.

2.

Querying and Retrieving Data: WordPress uses SQL (Structured Query Language) to
interact with the MySQL database. When a user visits your site, WordPress generates
SQL queries to retrieve the necessary data from the database. This data is then processed and
rendered using PHP to display the requested content.
3. Data Manipulation: MySQL allows you to manipulate data within the database. This
includes inserting new posts, updating existing content, deleting data, and managing
relationships between different tables, such as linking a post to its author or
categorizing content into specific taxonomies.

The integration of PHP and MySQL with WordPress occurs seamlessly behind the scenes. As
you interact with the WordPress interface, PHP scripts handle the processing and generation
of dynamic content, while MySQL stores and retrieves the necessary data to fulfil user
requests.
This powerful combination of PHP and MySQL within WordPress enables you to create and
manage dynamic websites with ease, allowing for customizations, content management, and
interactive functionality.
Practical-7
Practical Name-Install Moodle & various plugins with detailed explanation
Installing Moodle and various plugins can enhance the functionality and features of your e-
learning platform. Here's a step-by-step guide on how to install Moodle and install plugins:

Install Moodle:
1. Choose a hosting provider or set up a local development environment. Ensure that
your server meets the minimum requirements for running Moodle (PHP version,
database, etc.).
2. Download the latest version of Moodle from the official Moodle website
(https://moodle.org/).
3. Extract the downloaded Moodle package.
4. Transfer the extracted Moodle files to your web server or the local development
environment.
5. Ensure that the necessary file and directory permissions are set according to Moodle's
requirements.
6. Visit your Moodle site's URL in a web browser to start the installation process.
7. Follow the on-screen instructions to configure your Moodle site, including setting
up the database, creating an admin account, and defining site settings.
Once the installation is complete, you can access your Moodle site's admin
dashboard.

Install Moodle Plugins:


1. Visit the Moodle Plugins directory (https://moodle.org/plugins/) to explore the
available plugins.
2. Browse and search for the plugins you want to install. Consider factors such as
compatibility with your Moodle version, ratings, reviews, and support.
3. Download the desired plugin(s) from the Moodle Plugins directory. The
downloaded files are usually in ZIP format.
4. Extract the plugin files from the ZIP archive.
5. Connect to your Moodle server using FTP or file manager.
6. Navigate to the "mod" (for activity modules), "blocks" (for blocks), or "local" (for
local plugins) directory within your Moodle installation.
7. Upload the extracted plugin folder to the respective directory based on the plugin
type.
8. Visit your Moodle site's admin dashboard and go to "Site administration" >
"Plugins" > "Install plugins."
9. Moodle will detect the newly uploaded plugin(s) and guide you through the
installation process.
10. Follow the on-screen instructions to install and configure the plugins.
Once the installation is complete, you can start using the new features provided by the installed
plugins.
It's important to note that each Moodle plugin may have its own specific installation instructions
and configuration settings. Make sure to consult the documentation or readme file provided
with the plugin for any additional installation steps or setup requirements.
Installing plugins can add functionality such as additional activity modules, content types,
grading methods, communication tools, and more to your Moodle site. Explore the Moodle
Plugins directory to find plugins that align with your specific needs and enhance the learning
experience for your users.
Practical-8
Practical Name- Create a Moodle site and Database Schema
Creating a Moodle site involves setting up a web server, configuring a database, and
installing Moodle software. Here's a step-by-step guide on how to create a Moodle site and
design its database schema:
Set up a Web Server:
1. Choose a hosting provider or set up a local server environment. Ensure that the server
meets the requirements for running Moodle (PHP version, database, etc.).
2. Install a web server software like Apache or Nginx.
3. Configure the web server to support PHP and enable necessary modules or extensions.
Configure a Database:
1. Choose a database management system that is compatible with Moodle. The
recommended choice is usually MySQL or MariaDB.
2. Install and configure the selected database management system.
3. Create a new database for your Moodle site. This can usually be done through the
database management system's command line or graphical interface.
4. Create a dedicated database user with appropriate privileges to access and manage
the Moodle database.
Download and Install Moodle:
1. Visit the official Moodle website (https://moodle.org/) and download the latest stable
version of Moodle.
2. Extract the downloaded Moodle package to a directory accessible by the web server.
3. Rename the "config-dist.php" file to "config.php".
4. Open the "config.php" file in a text editor and provide the necessary database
connection details, such as database type, host, name, username, and password.
5. Save the "config.php" file.
6. Run the Moodle Installation:
7. Visit your Moodle site's URL in a web browser.
8. The Moodle installation wizard will guide you through the setup process.
9. Select the preferred language and follow the on-screen instructions.
10. Provide the site name, administrator account details, and other required
settings.
11. Choose the database driver (usually MySQL or MariaDB) and enter the
database connection details you configured earlier.
12. Complete the installation process and wait for Moodle to set up the site.
Database Schema Design:
Once your Moodle site is set up, it uses a database to store and manage its data. The Moodle
database schema is designed to handle various aspects of the e-learning platform. Here is a
simplified overview of the Moodle database schema:
1. Tables: The Moodle database consists of multiple tables, each serving a specific
purpose. Some key tables include:
2. Users: Stores information about site users, including their names, email addresses,
passwords, roles, and enrollment details.
3. Courses: Contains details about courses offered on the site, such as course names,
descriptions, start/end dates, and associated instructors.
4. Modules: Stores information about different activity modules available in Moodle,
including their names, types, and configuration settings.
5. Enrollments: Tracks user enrollment in courses, including enrollment dates,
completion status, grades, and other relevant information.
6. Relationships: The tables in the Moodle database are connected through relationships
using primary and foreign keys. These relationships define how data is linked and
retrieved.
7. Data Integrity: The database schema incorporates data integrity measures, such as
unique constraints, foreign key constraints, and referential integrity, to maintain the
consistency and accuracy of the data.
8. Customization: Moodle allows for customization and extension through plugins,
which may introduce additional tables or modify existing ones to support new features
or functionalities.

It's important to note that the actual Moodle database schema is more extensive and complex,
with numerous tables and relationships to handle various aspects of the e- learning platform.
The schema is continuously updated and improved with each new version of Moodle.
Understanding the Moodle database schema helps administrators and developers navigate and
interact with the data stored in the database, enabling them to perform tasks such as retrieving
user information, generating reports, or creating custom plugins that integrate with Moodle's
data structure.
Practical-9
Practical Name- Design Site appearance, Front-page, Front-page settings, My Moodle,
User profiles, Navigation, Course list, Themes, Theme settings, Header and footer,
Language settings, using web services, Publishing a course, Blogs, RSS feeds with
detailed explanation
Designing the appearance of your Moodle site involves customizing various elements,
including the front page, user profiles, navigation, themes, headers and footers, language
settings, and utilizing web services for integration. Additionally, you can publish courses,
enable blogs, and set up RSS feeds. Here's a detailed explanation of each aspect:

Site Appearance:
1. Front Page: The front page is the first page users see when visiting your Moodle site.
You can configure it to display essential information, such as site news, course
highlights, or featured resources. Customize the front page to provide a welcoming
and informative introduction to your e-learning platform.
2. Front Page Settings: In Moodle's Site administration, you can access Front Page
settings to modify the layout, appearance, and blocks displayed on the front page. You
can choose from various block types to add content or navigation elements.
3. My Moodle: My Moodle is a personalized dashboard that displays each user's
courses, activities, upcoming deadlines, and progress. It serves as the central hub for
learners to access their enrolled courses and track their learning journey.
4. User Profiles: Moodle allows customization of user profiles to enhance the user
experience. You can enable users to add profile pictures, display their contact
information, and provide a brief bio. These profile settings can be configured in Site
administration.
5. Navigation: Moodle offers customizable navigation menus, including a main
navigation menu and a user navigation menu. These menus allow users to easily
navigate through the site and access important areas such as courses, user profiles,
messaging, and site administration.
6. Course List: Moodle provides a course list page where users can view and search for
available courses. Administrators can control the visibility and enrollment options for
each course. You can organize courses into categories or create custom filters to help
users find relevant courses based on their interests or requirements.
7. Themes and Theme Settings: Moodle offers a range of themes to customize the look
and feel of your site. You can choose from pre-installed themes or install third-party
themes to match your branding or design preferences. Themes control the overall
layout, color schemes, fonts, and styling of your Moodle site.

8. Theme settings allow further customization of the selected theme. In the Site
administration, you can configure theme-specific options, such as the site logo,
header/footer content, front page layout, block positioning, and more.
9. Header and Footer: Moodle allows customization of the header and footer sections of
your site. In the theme settings, you can define the content, navigation links, and
branding elements displayed in the header and footer areas. This enables you to
provide consistent branding, important links, and additional site information.
10. Language Settings: Moodle supports multiple languages, allowing you to
create a multilingual learning environment. In Site administration, you can install
language packs, set the default language, and enable language selection for users.
Users can then switch to their preferred language, enhancing accessibility and user
experience.
11. Using Web Services: Moodle provides extensive web services that enable
integration with external systems and applications. Web services allow you to retrieve
and update Moodle data programmatically, facilitating automation, data
synchronization, and seamless integration with other platforms.
12. Publishing a Course: Moodle allows you to create and publish courses for
learners. You can define course content, add activities and resources, set completion
criteria, and customize course settings. Moodle offers a range of course formats, such
as weekly, topic-based, or social, allowing flexibility in organizing and presenting
course content.
13. Blogs and RSS Feeds: Moodle includes built-in blogging capabilities, enabling
users to create personal or course-specific blogs. Blogs allow learners and instructors
to share reflections, opinions, or learning experiences. You can configure blog
settings and permissions
Practical-10
Practical Name- Manage Moodle site, Managing authentication, Manual accounts, No
login, Email- based self-registration, Account
Managing a Moodle site includes various aspects of user authentication and account
management. You can control how users access the site, create manual user accounts, enable
no-login access, and configure email-based self-registration. Here's a detailed explanation of
each method
Managing Authentication:
Moodle provides several authentication methods to control user access to your site. In the Site
administration, navigate to the "Plugins" section and select "Authentication" to configure
authentication settings. Some common authentication methods include:
1. Manual Accounts: With manual accounts, administrators create user accounts
manually. They enter user details such as username, password, email address, and
other optional information. Manual accounts give administrators full control over user
registration and account creation.
2. No Login: In certain scenarios, you may want to allow users to access certain parts of
your Moodle site without requiring them to log in. This option can be useful for
providing public access to resources or information. Users can view content, but they
won't have personal accounts or access to interactive features.
3. Email-based Self-Registration: Moodle offers email-based self-registration, allowing
users to create their own accounts. Users provide their email address, and Moodle
sends them a confirmation email with a unique registration link. Upon clicking the
link, users can complete the registration process by setting their password and
providing additional information.
4. Manual Accounts: Manual accounts involve creating user accounts directly from the
Moodle administration interface. Here's how to create manual accounts:

 Access the Moodle administration interface with an administrator account.


 Navigate to "Site administration" > "Users" > "Accounts" > "Add a new user."
 Fill in the required information, such as username, password, email address, and full
name.
 You can also add optional details, such as profile picture, contact information, and
user preferences.
 Set any additional settings related to roles, permissions, and enrollment if needed.
 Save the user account, and the user will be able to log in with the provided
credentials.

Manual accounts are useful when you want to have direct control over user registration and
account details. They are suitable for scenarios where you need to manage user access and
monitor user activity closely.
5. No Login: The no-login option allows certain areas or resources on your Moodle site
to be accessible without requiring users to log in. This can be beneficial for providing
open access to public information, resources, or courses. Here's how to enable no-
login access:
 Navigate to "Site administration" > "Plugins" > "Authentication" > "Manage
authentication."
 Locate the "No login" method and enable it.
 Specify the areas or resources that should be accessible without login by
configuring the respective course or activity settings.
 No-login access is suitable for scenarios where you want to share information with a
wider audience or allow anonymous access to specific content.
 Email-Based Self-Registration:
 Moodle's email-based self-registration allows users to create their own accounts by
providing their email address. Here's how to enable email-based self- registration:
 Go to "Site administration" > "Plugins" > "Authentication" > "Manage
authentication."
 Locate the "Email-based self-registration" method and enable it.
 Set the required and optional fields for the registration form, such as email address,
first name, last name, etc.
 Configure email settings, including the email template, confirmation message, and
notification to administrators.
 Save the settings.
Once enabled, users can visit the Moodle site, click on the "Create new account" link, and
complete the registration process by entering their email address and following the
steps outlined in the confirmation email. Email-based self- registration is a convenient
method for allowing users to create their own accounts and join your Moodle site. It
simplifies the registration process and reduces the administrative burden of manually
creating accounts.
When users choose email-based self-registration, they receive a confirmation email
containing a unique registration link. Upon clicking the link, they are directed to a
page where they can set their password and provide additional information, such as
their profile details or preferences. Once the registration process is complete, users
can log in to the Moodle site using their chosen credentials.
Email-based self-registration offers a balance between user convenience and site security.
It allows individuals to quickly register and access the learning resources while
ensuring that only valid email addresses are used for registration.
Administrators have control over the email-based self-registration process, including the
fields required for registration, the email templates sent to users, and notifications
received by administrators. This allows for customization and personalization to
match the site's requirements and branding.
It's important to regularly monitor the self-registration process to ensure that only
legitimate users are signing up and to prevent spam or misuse. Moodle provides
various tools and settings to manage user accounts, including the ability to review and
approve registrations, set account activation rules, and manage user roles and
permissions.
By offering manual accounts, no-login access, and email-based self- registration, Moodle
provides flexibility in managing user authentication and account creation.
Administrators can choose the most suitable method or combination of methods based
on their site's needs, security considerations, and desired level of user engagement.
Practical-11
Practical Name- Create Roles and permissions, Assign roles, with detailed explanation
In Moodle, roles and permissions allow you to control the access and capabilities of different
users within your site. You can create custom roles, assign them to users, and define specific
permissions for each role. Here's a detailed explanation of how to create roles and assign
them to users:
Creating Roles:
Access the Moodle administration interface with an administrator account. Navigate to
"Site administration" > "Users" > "Permissions" > "Define roles." Click on the "Add a
new role" button.
Provide a name and short name for the role.
Select the appropriate context for the role (site-wide, category, course, etc.).
Specify the role's archetype (such as student, teacher, manager) to inherit default permissions
or choose "none" for a custom role.
Customize the role's permissions by selecting or deselecting checkboxes for each capability.
Save the role.
When creating a role, you have the flexibility to define permissions at a granular level.
Moodle offers a wide range of capabilities that control access to various features, activities,
and resources within the site.
Assigning Roles:
Once you have created custom roles, you can assign them to specific users or groups.
Navigate to the user's profile or the course where you want to assign the role.
Click on the "Assign roles" option.
Select the desired role from the list of available roles. Save
the changes.
Users can be assigned multiple roles, allowing them to have different levels of access and
capabilities in different contexts (site-wide, category, course, etc.). For example, a user can be
assigned the role of "student" in one course and the role of "teacher" in another.
Role Permissions and Capabilities:

Each role in Moodle has a set of permissions or capabilities associated with it. These
capabilities define what a user with that role can or cannot do within the system.
Moodle's capabilities cover a wide range of actions, such as managing activities, editing
course content, grading, participating in forums, and more.
When creating or modifying a role, you can customize the permissions by selecting or
deselecting the corresponding capabilities. This allows you to fine-tune the level of access
and control for each role.
It's important to carefully consider the permissions assigned to each role to ensure that users
have the necessary access to perform their tasks without compromising security or privacy.
By creating roles and assigning them to users, you can establish a flexible and tailored system
of access control within your Moodle site. Roles and permissions enable you to define the
responsibilities and capabilities of different user types, such as students, teachers,
administrators, or other custom roles, ensuring that users have appropriate access to resources
and activities while maintaining the overall security and integrity of the site.
Practical-12
Practical Name- Implement Password salting.
Password salting is a technique used to enhance the security of stored passwords by adding
additional random data before hashing them. It helps protect against various attacks,
including pre-computed rainbow table attacks and brute-force attacks. Here's a detailed
explanation of how password salting works:
Hashing and Password Storage:
In most secure systems, passwords are not stored in their original form. Instead, they are
transformed into a hash value using a cryptographic hashing algorithm, such as bcrypt, SHA-
256, or Argon2.
Hashing is a one-way process where the password is converted into a fixed-length string of
characters. It is computationally infeasible to reverse-engineer the original password from the
hash value.
Password Salting:
Password salting involves adding random data, called a salt, to the original password before
hashing it.
The salt is a random string of characters unique to each user. It adds an extra layer of
complexity and randomness to the hashing process, making it more difficult for attackers to
guess or precompute hash values.
The salt value is typically generated using a cryptographically secure random number
generator.
Benefits of Password Salting:
Increased Security: Salting significantly increases the security of stored passwords. Even if
two users have the same password, their salted and hashed values will be different due to the
unique salt applied to each user. This prevents attackers from identifying common passwords
through comparison of hash values.
Protection against Pre-computed Attacks: Pre-computed rainbow table attacks involve
building a database of precomputed hash values for commonly used passwords. By salting
passwords, even if an attacker has access to a pre-computed table, the unique salt makes it
impractical to match the stored hash values.
Resistance against Brute-Force Attacks: Brute-force attacks involve systematically trying all
possible password combinations. Salting adds computational cost to these attacks since each
attempted password must be salted, hashed, and compared to the stored hash value. This
significantly slows down the attacker's progress.
Implementation of Password Salting:
When a user creates an account or changes their password, the system generates a random
salt value for that user.
The salt is then concatenated with the user's password, and the combined string is hashed
using a secure hashing algorithm.
The resulting hash value, along with the salt, is stored in the user's account record in the
database.
When the user attempts to log in, the system retrieves the salt associated with the user and
applies the same salt and hashing process to the entered password. The generated hash is
compared to the stored hash value for authentication.
By implementing password salting, you significantly improve the security of your system by
adding an extra layer of randomness and complexity to the hashing process. This helps
protect against various password-related attacks and ensures that even if an attacker gains
access to the stored hashes, it is computationally infeasible to reverse-engineer the original
passwords.
Practical-13
Practical Name- Perform Site backup, Course backup, Course restore,
Automated course backup with detailed explanation
Performing regular backups of your Moodle site and courses is essential to ensure data
integrity and to have a restore point in case of any data loss or system failure. Moodle
provides options for site backup, course backup, course restore, and even automated course
backups. Here's a detailed explanation of each process:

Site Backup:
Site backup involves creating a complete backup of your Moodle site, including all courses,
user data, configurations, and files.
Moodle provides a built-in backup feature accessible through the Moodle administration
interface.
Navigate to "Site administration" > "Courses" > "Backup."
Select the desired backup options, such as including enrolled users, user data, activities, etc.
Choose the backup destination, such as a local file or remote server.
Initiate the backup process, and Moodle will generate a backup file containing all the selected
data.
It is recommended to schedule regular site backups to ensure up-to-date copies of your
Moodle site are available.
Course Backup:
Course backup allows you to create backups of individual courses within your Moodle site.
Access the desired course's administration area. Navigate to
"Course administration" > "Backup."
Choose the backup options, such as including user data, activities, resources, etc. Select the
backup destination.
Initiate the backup process, and Moodle will generate a backup file specific to that course.
You can perform course backups on-demand or schedule regular backups for critical courses.
Course Restore:

Course restore enables you to restore a previously created backup file to recover a course or
import it into another Moodle site.
Access the course where you want to restore the backup or create a new course. Navigate to
"Course administration" > "Restore."
Choose the backup file you want to restore.
Configure the restore options, such as whether to include user data, activities, or specific
settings.
Initiate the restore process, and Moodle will import the course from the backup file,
recreating all the content and settings.
Automated Course Backup:
Moodle also offers automated course backup, allowing you to schedule regular backups
for specific courses.
Navigate to "Site administration" > "Courses" > "Backups" > "Automated backup setup."
Select the courses for which you want to enable automated backups.
Configure the backup settings, such as backup frequency, destination, and options.
Save the settings, and Moodle will automatically create backups of the selected courses
according to the defined schedule.
Automated course backups are useful for ensuring that critical courses are regularly backed
up without manual intervention. They provide an additional layer of data protection and
reduce the risk of data loss or system failure.
Regularly performing site backups, course backups, and utilizing automated backups is
crucial to maintain the integrity and availability of your Moodle data. By having reliable
backup copies, you can restore courses or the entire site in case of accidental deletions, data
corruption, or other unforeseen issues, ensuring a smooth learning experience for your
Moodle users.

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