nginx. The condition in curly braces of the regular expression does not work

Question

Nginx

Hello! I'm confused about something...

I write the following condition in location /:

if ($request ~* "/products/detail.php\?ID=.{7}")
{
access_log /var/log/nginx.error_log;
return 403;
}

After that, nginx starts blocking requests like:

/products/detail.php?ID=142

That is, the condition "if the characters after = is greater than or equal to 7" does not work.

Please advise.

Answer 1

location /path/to/script.php {
    if ($arg_id !~ ^\d+$) {
        return 403;
    }
}

Answer 2

I dare to assume that .{7} is 7 any characters, not just numbers. may go in the direction of \d{7} or I don't really remember how it is in nginx. Plus maybe you have other options there further?