To run PHP on Windows, you can follow these steps:

Install a Web Server: 

You need a web server software to run PHP scripts. Two popular options for Windows are XAMPP and WampServer. These packages include Apache (the web server), MySQL (the database server), and PHP (the scripting language) bundled together for easy installation.

Install PHP:

If you're not using a package like XAMPP or WampServer, you can install PHP separately. You can download the PHP installer from the PHP website (https://www.php.net/downloads.php) and follow the installation instructions.

Configure the Web Server: 

 Once the web server and PHP are installed, you need to configure the web server to recognize PHP files. This usually involves modifying the server configuration file (httpd.conf for Apache) to include PHP module and associate PHP files with the PHP interpreter.

Test PHP Installation:

Create a simple PHP file (e.g., test.php) containing <?php phpinfo(); ?>. Save this file in the web server's document root directory (e.g., htdocs for XAMPP or www for WampServer). Open your web browser and navigate to http://localhost/test.php. If PHP is configured correctly, you should see a page displaying PHP information.

Start the Web Server:

 If you're using XAMPP or WampServer, start the web server from their control panels. If you installed PHP separately, you may need to start the Apache server manually.