Deploy CodeIgniter On NGINX

Whats is CodeIgniter?

CodeIgniter is a powerful PHP framework with a very small footprint, built for developers who need a simple and elegant toolkit to create full-featured web applications. official site.

Requirements

App :

• Install Nginx or Apache Server
• Install PHP-fpm (FastCGI Process Manager)
• Install Mysql (Optional)
• Install Composer

PHP version 7.2 or higher is required, with the following extensions installed:

• intl
• libcurl if you plan to use the HTTP\CURLRequest library

Additionally, make sure that the following extensions are enabled in your PHP:

• json (enabled by default - don't turn it off)
• mbstring
• mysqlnd
• xml (enabled by default - don't turn it off)

Step by Step How To Install NGINX , PHP

• Install NGINX Server :

sudo apt update

sudo apt install nginx

• Adjusting Firewall :

sudo ufw app list

sudo ufw allow 'Nginx HTTP'

sudo ufw status

• Check Server :

systemctl status nginx

*if Nginx is already running, the status will appear as shown above

• If Nginx has not started yet :

sudo systemctl start nginx

• Install PHP-fpm :

sudo apt update

sudo apt install php-fpm

sudo systemctl restart nginx.service

• Change Access to folder var/www/ :

sudo chmod -R 755 /var/www/

• Change config on file /etc/nginx/sites-available/default :

Add this line on Server block : index index.php index.html index.htm index.nginx-debian.html;

PUse this Line below on PHP Block :

location ~ \.php$ {
    include snippets/fastcgi-php.conf;  
    fastcgi_pass unix:/run/php/php7.4-fpm.sock; 
}

• To check whether the PHP is running or not, go to /var/www/html/ :

Then create info.php file :

<?php
  phpinfo();
php?>

If PHP is already running, there is an info for your php on your nginx server on localhost/info.php

Step by Step to Deploy / Install CodeIgniter on NGINX

• install composer :

sudo apt install composer

sudo apt install php-curl

sudo apt install php-intl

• Create Config file on /etc/nginx/sites-available/codeigniter.conf :

server { listen 8080 default_server; listen [::]:8080 default_server;

root /var/www/codeigniter/public;

# Add index.php to the list if you are using PHP
index index.php index.html index.htm index.nginx-debian.html;

server_name _;

location / {
	# First attempt to serve request as file, then
	# as directory, then fall back to displaying a 404.
	try_files $uri $uri/ /index.php;
}

# pass PHP scripts to FastCGI server
#
location ~ \.php$ {
	include snippets/fastcgi-php.conf;

#	# With php-fpm (or other unix sockets):
	fastcgi_pass unix:/var/run/php/php7.4-fpm.sock;
#	# With php-cgi (or other tcp sockets):
#	fastcgi_pass 127.0.0.1:9000;
}

• Create Link to sites-enabled :

sudo ln -s /etc/nginx/sites-available/codeigniter.conf /etc/nginx/sites-enabled/

sudo nginx -t

sudo systemctl restart nginx

• Install CodeIgniter using composer :

Open Directory Root :

cd /var/www/

Install CodeIgniter :

composer create-project codeigniter4/appstarter [your-project-name]

composer update

Reference

https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-18-04

https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-ubuntu-18-04