Ensure that PHP is installed on your computer. You can download it from the official PHP website (https://www.php.net/downloads.php). You can install XAMPP, which includes PHP along with Apache and other tools. You can download XAMPP from the official website (https://www.apachefriends.org/index.html). Download the repository as a ZIP file and extract it to a local directory. Change the current directory to the htdocs directory in the XAMPP installation folder. For example, on Windows, it could be C:\xampp\htdocs. Open a terminal such microsoft edge or any of your choice.
Execute the PHP script using the following command: (project_directory)/php prime_numbers.php
Verify the Output: After running the script, you should see a message saying "Output saved to 'output.json' file." This indicates that the script has executed successfully. Open the project directory and locate the output.json file. Open it to verify the generated array of numbers.