How to Install PHP 8.2 for Nginx on Ubuntu 23.10

To install PHP 8.2 for Nginx on Ubuntu 23.10, you can follow these steps:

Step 1 : Update the Package List

Ensure that your package list is up-to-date by running the following command:

sudo apt update

Step 2 : Install PHP 8.2

Install PHP 8.2 by running the following command:

sudo apt install php8.2 php8.2-cli php8.2-fpm

This command installs PHP 8.2.

Step 3 :1: Install Additional PHP Extensions:

sudo apt install php8.2-{mysql,curl,xsl,gd,common,xml,zip,xsl,soap,bcmath,mbstring,gettext,imagick}

These commands install the necessary PHP extensions for MySQL, cURL, XSL, GD, Common, XML, ZIP, SOAP, BCMath, mbstring, Gettext, and Imagick. Adjust the list according to your specific needs..

Step 4 : Configure Nginx to Use PHP-FPM with a Domain

Create a new Nginx server block configuration file for your domain (replace "example.com" with your actual domain):

sudo nano /etc/nginx/sites-available/example.com

Add the following content to the file:

server {
    listen 80;
    server_name example.com www.example.com;

    root /var/www/html/example.com;
    index index.php index.html index.htm;

    location / {
        try_files $uri $uri/ =404;
    }

    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/var/run/php/php8.2-fpm.sock;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
        include fastcgi_params;
    }

    location ~ /\.ht {
        deny all;
    }

    error_log  /var/log/nginx/example.com_error.log;
    access_log /var/log/nginx/example.com_access.log;
}

Save and close the file.

Step 5 : Create the Document Root and Test File

Create the document root directory for your domain and a test PHP file:

sudo mkdir /var/www/html/example.com
sudo nano /var/www/html/example.com/index.php

Add the following content to the index.php file:

<?php
phpinfo();
?>

Save and close the file.

Step 6 : Enable the Nginx Configuration

Create a symbolic link to enable the Nginx configuration:

sudo ln -s /etc/nginx/sites-available/example.com /etc/nginx/sites-enabled/

Step 7 : Test and Restart Services

Test the Nginx configuration for syntax errors:

sudo nginx -t

If the test is successful, restart Nginx to apply the changes:

sudo systemctl restart nginx

Step 8 : Access Your Website

Open a web browser and navigate to http://example.com. You should see the PHP information page.

That's it! You have successfully configured Nginx with PHP-FPM for the example.com domain on Ubuntu 23.10.