php - How to allow three optional parameters in the URL by .htaccess?

Question

I have http://example.com and a PHP routing class that checks if some URL exists.
I want to make a new route, which is:

http://example.com/foo/bar/123

but as long as I open it, the Apache redirects me to an error page. So I'm using a .htaccess. The code is:

RewriteEngine on

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^(.*)  /index.php [L]

and it works, as long as I use http://example.com/foo, but once I add some other parameters, it redirects me to an error.

I'm guessing that the rewrite code is wrong. Is it wrong?
If yes, could you suggest me the good one?
If no, where the problem could be located?

Answer 1

You can handle the URI with php:

.htaccess:

RewriteEngine on

RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule ^ index.php [L]

php:

if (isset($_SERVER['REQUEST_URI']))
{
    $params = explode("/", ltrim($_SERVER['REQUEST_URI'], "/"));
    print_r($params);
}

example.com/just/these/params

Output:

Array
(
    [0] => just
    [1] => these
    [2] => params
)