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    You are at:Home»PHP Framework»How to Install CodeIgniter on Ubuntu 18.04 (Bionic)

    How to Install CodeIgniter on Ubuntu 18.04 (Bionic)

    By RahulOctober 16, 20193 Mins Read

    CodeIgniter is a powerful PHP framework for rapid development. It is an opensource PHP framework build by developers for developers to create web applications faster. CodeIgniter 3 is the latest framework available and CodeIgniter 2 is a legacy PHP framework.

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    In this tutorial, we are going to install CodeIgniter 3 on our system. This tutorial will help you to install CodeIgniter on Ubuntu 18.04 Bionic LTS systems.

    Step 1 – Prerequsities

    Login to your Ubuntu system. CodeIgniter framework required PHP to be installed, MySQL as the database server and Apache/Nginx as the webserver. Use one the following tutorial to install LAMP server on your system

    • Install LAMP on Ubuntu 18.04

    Step 2 – Download CodeIgniter

    Download the latest version of CodeIgniter from its official GitHub release page. You can use following commands to download CodeIgniter 3.1.9 on your system.

    cd /var/www
    wget https://github.com/bcit-ci/CodeIgniter/archive/3.1.9.zip
    

    Extract the archive on your local system and place directory for document root with proper naming.

    unzip 3.1.9.zip
    mv CodeIgniter-3.1.9 CodeIgniter
    

    Step 3 – Create Database

    Now, create a database for your CodeIgniter application in MySQL. I have MySQL 5.7 running on my machine. Connected to MySQL with root user then create database and user with the below queries.

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    mysql> CREATE DATABASE codeigniter;
    mysql> GRANT ALL ON codeigniter.* to 'dbuser'@'localhost' IDENTIFIED BY '_password_';
    mysql> FLUSH PRIVILEGES;
    mysql> quit

    Ater creating database, edit the CodeIgniter database configuration in text editor and update the database settings as per your environments.

    vi application/config/database.php
    
    $db['default'] = array(
            'dsn'   => '',
            'hostname' => 'localhost',
            'username' => 'root',
            'password' => '_password_',
            'database' => 'codeigniter',
            'dbdriver' => 'mysqli',
            'dbprefix' => 'tec_',
    

    Step 4 – Setup CodeIgniter

    Now you need to configure the base URL for your application. For this tutorial, I am using the www.example.com domain for configuration. You can choose the localhost or any valid domain name of your choice.

    Edit config.php file in text editor:

    vi application/config/config.php
    

    and update base_url as following:

    $config['base_url'] = 'http://www.example.com/';
    

    Step 5 – Setup Apache for CodeIgniter

    For this tutorial, I’m using Apache web server on my Ubuntu system. Create a new VirtualHost configuration file:

    vi /etc/apache2/sites-available/codeigniter.conf
    

    Add following content with proper server name, alias:

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    <VirtualHost *:80>
        ServerName example.com
        ServerAlias www.example.com
        DocumentRoot /var/www/CodeIgniter
        <Directory /var/www/CodeIgniter>
              Allowoverride All
        </Directory>
    </VirtualHost>

    Save the Apache VirtualHost configuration file. Now use the a2enmod command to enable newly created CodeIgniter VirtualHost. Also, restart the Apache service to apply changes.

    sudo a2ensite codeigniter
    sudo systemctl restart apache2
    

    Step 6 – Testing

    All done. You can access your CodeIgnator application in your favorite web browser with the configured domain name.

     http://www.example.com/
    

    By default, you will the screen below.

    Install CodeIgniter on Ubuntu

    Let’s start developing with CodeIgniter.

    CodeIgniter php framework
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    View 3 Comments

    3 Comments

    1. Darwin on October 15, 2019 5:58 pm

      I followed all directions up to running a2enmod, and I am told that Module codeigniter doesn’t exist.

      The file codeigniter.conf is in available-sites, so I ran a2ensite instead. Am I on the right track?

      Reply
      • Rahul on October 16, 2019 4:27 am

        Yes Darwin, I have also corrected the tutorial.

        Reply
    2. subash on May 1, 2019 1:10 pm

      Dear Rahul,

      THis page
      helps me lot, but I need to configure a old codeigniter project into ubuntu 18.04 server…
      please help me.
      I’m awaiting for your kind reply.
      Thank you.

      Reply

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