How to Install PHP 8.2 for Nginx on CentOS 7

To install PHP on CentOS 7 with Nginx, follow these steps.

Step 1 : Ensure your system is up to date:

sudo yum update

Step 2 : Install the Remi repository which provides updated PHP versions:

sudo yum install yum-utils
sudo yum install https://rpms.remirepo.net/enterprise/remi-release-7.rpm

Step 3 : Enable the PHP 8.2 module from the Remi repository:

sudo yum-config-manager --enable remi-php82

Step 4 : Install PHP Core

sudo yum install -y php php-fpm

Step 5 : Install Additional PHP Extensions

sudo yum install install -y php-{cli,mysqlnd,curl,gd,mcrypt,json,pear,common,xml,zip,devel,xsl,soap,bcmath,mbstring,gettext,imagick}

Explanations:

- php-cli: Command-line interface for PHP.

- php-mysqlnd: MySQL Native Driver for PHP.

- php-curl: cURL extension for PHP.

- php-gd: GD Graphics Library for image manipulation.

- php-mcrypt: Mcrypt extension for PHP (deprecated in PHP 7.1 and removed in PHP 7.2).

- php-json: JSON extension for PHP.

- php-pear: PHP Extension and Application Repository.

- php-common: Common files for PHP.

- php-xml: XML extension for PHP.

- php-zip: Zip extension for PHP.

- php-devel: Development files for PHP.

- php-xsl: XSL extension for PHP.

- php-soap: SOAP extension for PHP.

- php-bcmath: BCMath Arbitrary Precision Mathematics extension for PHP.

- php-mbstring: Multibyte String extension for PHP.

- php-gettext: Gettext extension for PHP.

- php-imagick: Imagick extension for PHP (provides object-oriented interface to ImageMagick).

Step 6 : Edit the PHP-FPM configuration to adjust for Nginx:

sudo nano /etc/php-fpm.d/www.conf

Find and update the following lines:

user = nginx
group = nginx
;listen = 127.0.0.1:9000
listen = /var/run/php-fpm.sock
listen.owner = nginx
listen.group = nginx
listen.mode = 0660

Step 7 : Enable and Start PHP-FPM

sudo systemctl enable php-fpm
sudo systemctl start php-fpm

Step 8 : Verify PHP Version

php -v

Step 9 : Create or edit the Nginx configuration file for your site. For example, edit the example configuration:

sudo nano /etc/nginx/conf.d/example.com.conf

Inside this file, configure Nginx to process PHP files. A basic example configuration might look like this:

server {
    listen 80;
    server_name example.com;


    location / {
        root /usr/share/nginx/html;
        index index.php index.html index.htm;
    }


    location ~ \.php$ {
        fastcgi_pass unix:/var/run/php-fpm.sock;
        fastcgi_index index.php;
        include fastcgi_params;
        fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    }
}

Step 10 : Test the Nginx configuration for any syntax errors:

sudo nginx -t

Step 11 : Apply the changes by restarting Nginx:

sudo systemctl restart nginx

Step 12 : Test PHP

- Create a PHP info file to verify installation:

sudo nano /usr/share/nginx/html/info.php

Add the following content:

<?php phpinfo(); ?>

Step 13 : View PHP Info in Browser

Visit http://example.com/info.php to see PHP configuration details.

Congratulations! You have successfully installed PHP 8.2 for Nginx on CentOS 7.