How To Install CodeIgniter on Linux Mint 21

In this tutorial, we will show you how to install CodeIgniter on Linux Mint 21. CodeIgniter is a powerful PHP framework designed for developers who need a simple and elegant toolkit to create full-featured web applications. Linux Mint 21, with its user-friendly and powerful interface, provides an excellent environment for web development.

This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the CodeIgniter PHP framework on a Linux Mint 21.

Prerequisites

• A server running one of the following operating systems: Linux Mint 21.
• It’s recommended that you use a fresh OS install to prevent any potential issues.
• While we’ll guide you through the process, a basic understanding of the command line will be beneficial. If you’re new to the CLI, you might want to acquaint yourself with some fundamental commands.
• An active internet connection.
• Administrative privileges are essential for installing and configuring software on your system. Ensure that you have superuser or sudo access.

Install CodeIgniter on Linux Mint 21

Step 1. Ensure your system is up-to-date to avoid any compatibility issues.

sudo apt update
sudo apt upgrade

Step 2. Installing LAMP Stack.

CodeIgniter requires a web server, database server, and PHP to run properly. The quickest way to get these set up on Linux Mint is by installing the LAMP (Linux, Apache, MySQL, PHP) stack. Run the following commands to install LAMP:

sudo apt update sudo apt install apache2 mysql-server php libapache2-mod-php php-mysql

Step 3. Installing Composer.

CodeIgniter requires Composer, a PHP dependency manager, for installation:

curl -sS https://getcomposer.org/installer | php
sudo mv composer.phar /usr/local/bin/composer
chmod +x /usr/local/bin/composer

Step 4. Installing CodeIgniter on Linux Mint 21.

Navigate to the directory where you want to install CodeIgniter and run the Composer command to create a new project:

composer create-project codeigniter4/appstarter codeigniter-project

This command creates a new CodeIgniter project in the codeigniter-project directory.

Step 5. Configure CodeIgniter for Development.

Navigate to your project directory. Copy the env file to .env and customize it for your environment. Specifically, set the CI_ENVIRONMENT variable to development to enable development settings:

cd codeigniter-project
cp env .env
nano .env

Step 6. Set Up the Database.

Create a new database and user for your CodeIgniter application. Then, configure the app/Config/Database.php file with the correct database credentials. If your application requires initial database migrations, run them using CodeIgniter’s CLI command:

php spark migrate

Step 7. Run CodeIgniter.

Use CodeIgniter’s built-in server for development purposes by running the following command in your project root:

php spark serve

Access the application via http://localhost:8080 in your web browser. You should see the default CodeIgniter welcome page:

Congratulations! You have successfully installed CodeIgniter. Thanks for using this tutorial to install the latest version of CodeIgniter PHP framework on the Linux Mint system. For additional help or useful information, we recommend you check the official CodeIgniter website.