Nginx: How to rewrite all root requests to index.php?

Question

Nginx

Where is the error in the nginx config? It is necessary to make sure that when calling any file from the root of the site (even if it does not exist), there will
be a redirect to /index.php without replacing the URL in the browser
.

location ~ /[^\/]+ { 
    rewrite  ^/[\w\W]+$  /index.php;
  }

or

location ~ /[^\/]+ { 
    rewrite  ^/[^\/]+$  /index.php;
  }

Works in a particular case

location = /robots.txt {
   	rewrite ^/robots.txt$ /robots.txt.php;
  }

Here, when a specific file is called (robots.txt), another one is called (robots.txt.php), without redirection.
But you need to make sure that when you call any file, there is also a redirect without a redirect to index.php

Answer 1

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

Answer 2

Something like this:

location = /index.php {
  # тут проксирование или fcgi
}

location ~ /[^\/]+ { 
  rewrite .* /index.php;
}