vaheeD khoshnouD

This is done by updating your server’s package index and then using the apt packaging system to pull down the files and install them on your system:

sudo apt update
sudo apt install phpmyadmin php-mbstring php-gettext

For the server selection, choose NONE.

sudo phpenmod mbstring

sudo vi /etc/nginx/conf.d/phpmyadmin.conf

Then paste this code into this file and if you want to change example.com to your domain

server {
  listen 81;
  listen [::]:81;
  server_name example.com;
  root /usr/share/phpmyadmin/;
  index index.php index.html index.htm index.nginx-debian.html;

  access_log /var/log/nginx/phpmyadmin_access.log;
  error_log /var/log/nginx/phpmyadmin_error.log;

  location / {
    try_files $uri $uri/ /index.php;
  }

  location ~ ^/(doc|sql|setup)/ {
    deny all;
  }

  location ~ \.php$ {
    fastcgi_pass unix:/run/php/php7.2-fpm.sock;
    fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
    include fastcgi_params;
    include snippets/fastcgi-php.conf;
  }

  location ~ /\.ht {
    deny all;
  }
}

sudo systemctl reload nginx