PHP is one of the highest used programming languages for websites, and it allows you to add practically any functionality you'd ever want to your sites.
Install
sudo apt install php-fpm php-mysql
Um, I forgor
sudo nano /etc/php//fpm/php.ini
Comment the cgi.fix_pathinfo line, to look like below
#set cgi.fix_pathinfo = 0
Add to Website's NGINX conf
For each website you want to use php, you'll need to edit the confige file
sudo vim /etc/nginx/sites-available/
The following code needs adding within the XXX block
location ~ \.php$ {
include snippets/fastcgi-php.conf;
fastcgi_pass unix:/run/php/php-fpm.sock;
}
This will use nginx's fastcgi-php.conf snippet which is more secure by deafult than many other php/nginx configs because it 404s if the files doesn't exist. Read Neal Poole'sDon't trust the tutorials for more info.
Reload NGINX
sudo systemctl reload nginx
Test it works
Create a PHP file e.g. filename.php in the website's directory, and add the snippet below into it
Go to that webpage in your browser e.g. domain.co.uk/filename.php, and if php is working you should see a dump of your PHP's version, headers, etc.
Make nginx use index.php as homepage/root
Now we'll set nginx to load up index.php as the root of the website, if it exists. Open the site's config with an editor
vim /etc/nginx/sites-available/
Change the index line to rad as below. This will then tell the server to load index.php, and if it doesn't exists, load index.html in it's stead
index index.php index.html