{"id":2521,"date":"2026-01-15T12:30:00","date_gmt":"2026-01-15T18:30:00","guid":{"rendered":"https:\/\/www.linuxcloudvps.com\/blog\/?p=2521"},"modified":"2025-12-08T06:41:49","modified_gmt":"2025-12-08T12:41:49","slug":"how-to-install-codeigniter-on-ubuntu-24-04","status":"publish","type":"post","link":"https:\/\/www.linuxcloudvps.com\/blog\/how-to-install-codeigniter-on-ubuntu-24-04\/","title":{"rendered":"How to Install CodeIgniter on Ubuntu 24.04"},"content":{"rendered":"\n<p>In this tutorial, we will explain how to install CodeIgniter on Ubuntu 24.04 OS. CodeIgniter is a free and open-source PHP framework for building web applications and websites. CodeIgniter uses the MVC (Model-View-Controller) pattern for code organization and is one of the fastest PHP frameworks. The main characteristics of CodeIgniter are that it is flexible, provides a toolkit with rich libraries for database access, sessions, is secure, provides routing, rapid development, etc. In this tutorial, we will install CodeIgniter with the LAMP stack.<\/p>\n\n\n\n<p>Installing CodeIgniter on Ubuntu 24.04 is straightforward, and it should take around 10 minutes. Let&#8217;s get started!<\/p>\n\n\n\n<!--more-->\n\n\n\n<h2 class=\"wp-block-heading\">Prerequisites<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <a href=\"https:\/\/www.linuxcloudvps.com\/cloud-vps.html\">server running Ubuntu 24.04<\/a> OS<\/li>\n\n\n\n<li>User privileges: root or non-root user with sudo privileges<\/li>\n\n\n\n<li>A valid domain with pointed A record to the server<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Step 1. Update the System<\/h2>\n\n\n\n<p>Before we start with the installation of CodeIgniter and the LAMP stack, we will update the system packages to their latest versions. Execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt update -y &amp;&amp; sudo apt upgrade -y<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Step 2. Install the LAMP Stack<\/h2>\n\n\n\n<p>LAMP stack stands for Linux, Apache, MySQL, and PHP. CodeIgniter software cannot work without this stack, because without it, we cannot create a database, install CodeIgniter, and configure the domain name. First, we will install the Apache web server. To do that, execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt install apache2 -y<\/pre>\n\n\n\n<p>Once installed start and enable the Apache service:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo systemctl start apache2 &amp;&amp; sudo systemctl enable apache2<\/pre>\n\n\n\n<p>Check the status of the service:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo systemctl status apache2<\/pre>\n\n\n\n<p>You should get the following output:&lt;\/p<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@host:~# sudo systemctl status apache2<br>\u25cf apache2.service - The Apache HTTP Server<br>     Loaded: loaded (\/usr\/lib\/systemd\/system\/apache2.service; enabled; preset: enabled)<br>     Active: active (running) since Sat 2025-12-06 04:06:14 CST; 6s ago<br>       Docs: https:\/\/httpd.apache.org\/docs\/2.4\/<br>   Main PID: 205270 (apache2)<br>      Tasks: 55 (limit: 4602)<br>     Memory: 5.2M (peak: 5.8M)<br>        CPU: 149ms<br>     CGroup: \/system.slice\/apache2.service<\/pre>\n\n\n\n<p>Next of the LAMP stack will be the PHP with its extensions. To install it execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt install php libapache2-mod-php php-mysql php-cgi php-mysqli php-pear php-phpseclib php-mbstring php-zip php-gd php-curl php-common -y<\/pre>\n\n\n\n<p>Once installed execute the following command to check the PHP version:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">php -v<\/pre>\n\n\n\n<p>You should get the following output:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@host:~# php -v<br>PHP 8.3.6 (cli) (built: Jul 14 2025 18:30:55) (NTS)<br>Copyright (c) The PHP Group<br>Zend Engine v4.3.6, Copyright (c) Zend Technologies<br>    with Zend OPcache v8.3.6, Copyright (c), by Zend Technologies<\/pre>\n\n\n\n<p>Last of the LAMP stack will be the MariaDB database service. To install it, execute the command below:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo apt install mariadb-server -y<\/pre>\n\n\n\n<p>Once installed start and enable the MariaDB service:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo systemctl start mariadb &amp;&amp; sudo systemctl enable mariadb<\/pre>\n\n\n\n<p>Check the status of the service:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo systemctl status mariadb<\/pre>\n\n\n\n<p>You should get the following output:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@host:~# sudo systemctl status mariadb<br>\u25cf mariadb.service - MariaDB 10.11.13 database server<br>     Loaded: loaded (\/usr\/lib\/systemd\/system\/mariadb.service; enabled; preset: enabled)<br>     Active: active (running) since Sat 2025-12-06 04:09:29 CST; 20s ago<br>       Docs: man:mariadbd(8)<br>             https:\/\/mariadb.com\/kb\/en\/library\/systemd\/<br>   Main PID: 208483 (mariadbd)<br>     Status: \"Taking your SQL requests now...\"<br>      Tasks: 13 (limit: 30378)<br>     Memory: 78.7M (peak: 81.8M)<br>        CPU: 1.117s<br>     CGroup: \/system.slice\/mariadb.service<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Step 3. Create CodeIgniter Database and User<\/h2>\n\n\n\n<p>To create the CodeIgniter database, database user and assign the privileges, log in to the MariaDB terminal and execute the following commands:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">CREATE USER 'codeigniter'@'localhost' IDENTIFIED BY 'StrongPasswordHere';<br><br>CREATE DATABASE codeigniterDB;<br><br>GRANT ALL PRIVILEGES ON codeigniterDB.* TO 'codeigniter'@'localhost';<br><br>FLUSH PRIVILEGES;<br><br>EXIT;<\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Step 4. Install Composer<\/h2>\n\n\n\n<p>We need to install the Composer responsible for installing all the CodeIgniter components. To install Composer execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">curl -sS https:\/\/getcomposer.org\/installer | php -- --install-dir=\/usr\/bin --filename=composer<\/pre>\n\n\n\n<p>To check the Composer version execute the command bellow:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">composer<\/pre>\n\n\n\n<p>You should receive the following output:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@host:\/var\/www\/html\/codeigniter# composer<br>Do not run Composer as root\/super user! See https:\/\/getcomposer.org\/root for details<br>Continue as root\/super user [yes]? yes<br>   ______<br>  \/ ____\/___  ____ ___  ____  ____  ________  _____<br> \/ \/   \/ __ \\\/ __ `__ \\\/ __ \\\/ __ \\\/ ___\/ _ \\\/ ___\/<br>\/ \/___\/ \/_\/ \/ \/ \/ \/ \/ \/ \/_\/ \/ \/_\/ (__  )  __\/ \/<br>\\____\/\\____\/_\/ \/_\/ \/_\/ .___\/\\____\/____\/\\___\/_\/<br>                    \/_\/<br>Composer version 2.9.2 2025-11-19 21:57:25<br>    .<br>    .<br>    .<br>    .   <\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Step 5. Install CodeIgniter<\/h2>\n\n\n\n<p>We will install the CodeIgniter using Composer into the Apache document root:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">mkdir \/var\/www\/html\/codeigniter<br><br>cd \/var\/www\/html\/codeigniter<br><br>composer create-project codeigniter4\/appstarter example-app<\/pre>\n\n\n\n<p>Next is to set the correct permissions:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">chown -R www-data:www-data \/var\/www\/html\/codeigniter\/<br><br>find . -type f -exec chmod 644 {} \\;<br><br>find . -type d -exec chmod 755 {} \\;<\/pre>\n\n\n\n<p>Once, the permissions are set, we can configure the <strong>env<\/strong> file. Open the following file:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo nano \/var\/www\/html\/codeigniter\/example-app\/env<\/pre>\n\n\n\n<p>Find these lines and adjust them according to the database credentials you set above.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">#--------------------------------------------------------------------<br># ENVIRONMENT<br>#--------------------------------------------------------------------<br><br><strong>CI_ENVIRONMENT = production<\/strong><br><br>#--------------------------------------------------------------------<br># APP<br>#--------------------------------------------------------------------<br><br><strong>app.baseURL = YourDomainNameHere<\/strong><br># If you have trouble with `.`, you could also use `_`.<br># app_baseURL = ''<br># app.forceGlobalSecureRequests = false<br># app.CSPEnabled = false<br><br>#--------------------------------------------------------------------<br># DATABASE<br>#--------------------------------------------------------------------<br><strong><br>database.default.hostname = localhost<br>database.default.database = ci4<br>database.default.username = codeigniter<br>database.default.password = codeigniterDB<br>database.default.DBDriver = MySQLi<br>database.default.DBPrefix =<br>database.default.port = 3306<\/strong><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\">Step 6. Create Apache Virtual Host File<\/h2>\n\n\n\n<p>Apache Configuration file for our CodeIgniter installation is necessary if we want to access it via a domain name. To create the file execute the following command:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo touch \/etc\/apache2\/sites-available\/codeigniter.conf<\/pre>\n\n\n\n<p>Open the file and paste the following lines of code<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">&lt;VirtualHost *:80><br>ServerName yourdomainhere.com<br>DocumentRoot \/var\/www\/html\/codeigniter\/example-app\/public\/<br><br>&lt;Directory \/var\/www\/html\/codeigniter\/example-app><br>AllowOverride All<br>&lt;\/Directory><br><br>ErrorLog ${APACHE_LOG_DIR}\/error.log<br>CustomLog ${APACHE_LOG_DIR}\/access.log combined<br><br>&lt;\/VirtualHost><\/pre>\n\n\n\n<p>Save the file and close it.<\/p>\n\n\n\n<p>Enable the Apache configuration files for WordPress along with the rewrite module.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">sudo a2enmod rewrite<br><br>sudo a2ensite codeigniter.conf<br><br>sudo a2dissite 000-default.conf<\/pre>\n\n\n\n<p>Check the Apache2 syntax:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">apachectl -t<\/pre>\n\n\n\n<p>You should receive the following output:<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">root@host:\/var\/www\/html\/codeigniter# apachectl -t<br>Syntax OK<\/pre>\n\n\n\n<p>If the syntax is OK, restart the Apache service.<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\">systemctl restart apache2<\/pre>\n\n\n\n<p>That&#8217;s it. Now you can access the CodeIgniter at <strong>http:\/\/yourdomainhere.com<\/strong><\/p>\n\n\n\n<p>Congratulations! You successfully installed CodeIgniter on Ubuntu 24.04 OS<\/p>\n\n\n\n<p>If you liked this post on how to install CodeIgniter on Ubuntu 24.04, please share it with your friends on social networks or simply leave a reply below. Thanks.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In this tutorial, we will explain how to install CodeIgniter on Ubuntu 24.04 OS. CodeIgniter is a free and open-source PHP framework for building web applications and websites. CodeIgniter uses the MVC (Model-View-Controller) pattern for code organization and is one of the fastest PHP frameworks. The main characteristics of CodeIgniter are that it is flexible, &#8230; <a title=\"How to Install CodeIgniter on Ubuntu 24.04\" class=\"read-more\" href=\"https:\/\/www.linuxcloudvps.com\/blog\/how-to-install-codeigniter-on-ubuntu-24-04\/\" aria-label=\"More on How to Install CodeIgniter on Ubuntu 24.04\">Read more<\/a><\/p>\n","protected":false},"author":2,"featured_media":2525,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[208],"tags":[367,168,300],"class_list":["post-2521","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ubuntu","tag-codeigniter","tag-how-to-install","tag-ubuntu-24-04"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Install CodeIgniter on Ubuntu 24.04 | LinuxCloudVPS Blog<\/title>\n<meta name=\"description\" content=\"Learn how to install 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