Lecture Notes 1 : Introduction to PHP

 Lecture Notes 1

Introduction to PHP

1. What is PHP?

PHP stands for Hypertext Preprocessor. It is a widely-used open-source server-side scripting language.

PHP is used to develop dynamic and interactive websites by embedding scripts within HTML.

Uses of PHP:

It is primarily used for:

Processing form data

Creating dynamic page content

Working with databases (e.g., MySQL)

2. PHP's Role in Web Development

PHP powers a large number of websites, from personal blogs to popular platforms like WordPress and Facebook.

It is part of the LAMP stack (Linux, Apache, MySQL, PHP), a popular setup for building and hosting web applications.

3. Setting up the PHP Development Environment

To begin developing in PHP, students need to set up a local server environment. We can use XAMPP, WAMP, or MAMP depending on the operating system.

Steps to Set Up Using XAMPP:

Download & Install XAMPP: Download from the official website and install the software.

Start Apache Server: Open the XAMPP control panel and start Apache (the web server).

Create a PHP Script:

Go to the XAMPP installation folder (e.g., C:\xampp\htdocs).

Create a new PHP file (e.g., info.php).

Add the following code:

<?php

    phpinfo();

?>

Run the Script:

Open a browser and go to http://localhost/info.php.

If PHP is correctly installed, it will display PHP configuration details.

Plz Find here the details:

Class 1: Web Hosting

Class 2: Introduction to PHP

Class 3: Install PHP

Class 4: RUN PHP Programs