Nginx rewrite rule return php in plain text

I have an Apache Configuration file that contains many rewrite rules.

RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://website.uri/$1 [R,L]

RewriteEngine On
RewriteCond %{REQUEST_FILENAME} -s [OR]
RewriteCond %{REQUEST_FILENAME} -l [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^.*$ - [NC,L]
RewriteRule ^p/(.*)$ index.php?rqt=page/index/url/$1 [NC,L]
RewriteRule ^(.*)$ index.php?rqt=$1 [NC,L,QSA]
<FilesMatch "\.(ttf|otf|eot|woff|woff2)$">
  <IfModule mod_headers.c>
    Header set Access-Control-Allow-Origin "*"
  </IfModule>
</FilesMatch>

After a switch to Nginx, I have tried to convert these rules, here is the result:

    location ~ ^(.*)$ { }

    location / {
        rewrite ^(.*)$ https://website.uri/$1 redirect;
        if (-e $request_filename) {
            rewrite ^/p/(.*)$ /index.php?rqt=page/index/url/$1 break;
        }
        rewrite ^(.*)$ /index.php?rqt=$1 break;
        try_files $uri $uri/ /index.php?$query_string;
    }

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

The problem is that now, my PHP code does not execute anymore and is directly displayed in text format.

How can I fix this problem?