How to Set Up Nginx with PHP-FPM

Setting up Nginx with PHP-FPM (PHP FastCGI Process Manager) allows you to serve PHP web applications efficiently. PHP-FPM is a process manager for PHP that handles incoming requests and executes PHP scripts. Here’s a step-by-step guide to set up Nginx with PHP-FPM on Ubuntu:

1. Install Nginx:

If you haven’t already installed Nginx, you can do so by running:

sudo apt update
sudo apt install nginx

2. Install PHP and PHP-FPM:

Install PHP and PHP-FPM along with any necessary PHP extensions for your web application:

sudo apt install php-fpm php-mysql php-curl php-gd php-mbstring php-xml php-json php-zip

This command installs PHP-FPM and some common PHP extensions. You can install additional extensions based on your application’s requirements.

3. Configure PHP-FPM:

PHP-FPM comes with a default configuration that should work for most cases. However, you can adjust some settings if needed.

Edit the PHP-FPM configuration file:

sudo nano /etc/php/7.4/fpm/php.ini

Make sure to adjust the cgi.fix_pathinfo setting to 0 to enhance security:

cgi.fix_pathinfo=0

Save and close the file.

4. Configure Nginx to Use PHP-FPM:

Next, configure Nginx to use PHP-FPM for processing PHP files. Open your Nginx site configuration file:

sudo nano /etc/nginx/sites-available/your-site.conf

Inside the server block, add the following location block to handle PHP files:

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

This configuration tells Nginx to pass PHP requests to the PHP-FPM socket.

5. Test Configuration and Reload Nginx:

Test the Nginx configuration to ensure there are no syntax errors:

sudo nginx -t

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

sudo systemctl reload nginx

6. Start and Enable PHP-FPM:

Start the PHP-FPM service and enable it to start automatically on boot:

sudo systemctl start php7.4-fpm
sudo systemctl enable php7.4-fpm

7. Test PHP:

Create a test PHP file in your web document root to ensure that PHP-FPM is working correctly. For example, create a file named info.php:

sudo nano /var/www/html/info.php

Add the following content to info.php:

php
phpinfo();
?>

Save and close the file.

Now, open your web browser and access http://your_domain_or_server_ip/info.php. You should see a PHP information page showing PHP version details and configuration.

8. Secure and Optimize Nginx and PHP-FPM (Optional):

For production use, consider implementing security best practices and optimizing your Nginx and PHP-FPM configurations.

That’s it! You’ve successfully set up Nginx with PHP-FPM on Ubuntu. You can now deploy your PHP web applications on this server configuration.