Redirect using mod_rewrite

.htaccess

<IfModule mod_rewrite.c>

RewriteEngine On

RewriteBase /

RewriteRule ^([A-Za-z]+)/([A-Za-z\+]+)/([0-9]+)/?$ tour/?id=$3&city=$2&country=$1 [NC]
RewriteRule ^([A-Za-z]+)/([A-Za-z\+]+)/?$ city/?city=$2&country=$1 [NC]
RewriteRule ^([A-Za-z^index]+)/?$ country/?country=$1 [NC]

RewriteRule . index.php [L]

</IfModule>

index.php

<h1>Index Route</h1>
<ul>
    <li>Country/Town/123</li>
    <li>Russia/Moscow</li>
    <li>Russia</li>
</ul>
<p>$_GET: 
<?php
var_dump($_GET);