How to change the url of a page from a dropdown in wordpress

Question

I want to be able to change the value of a wordpress page url according to a selected value from a dropdown list via a custom post type.

I want to use several dropdowns such that "Country" then "State" then "City" then "Town" will change the url to the selected values.

If i select just the country then the url will look like

http://example.com/india

When i select states of india in addition to that then the url will look like http://example.com/india/delhi.

Please reference this page to see an example of what I am trying to do: http://areapincode.in/

Answer 1

You should search for URL rewrite in WordPress. Please see the following link for more detail,

WordPress URL Rewrite

It works like following,

1. Add action hook for rewrite,

   add_action( 'init', 'rewrites_init', 1, 0);

   function rewrites_init() {
   add_rewrite_rule('([^/])/([^/])/([^/])/([^/])', 'index.php?&country=$matches1&state=$matches2&city=$matches[3]&town=$matches[4]', 'top'); }

2. Set rewrite tags

   add_action( 'init', 'custom_rewrite_tag', 10, 0); function custom_rewrite_tag() { add_rewrite_tag('%country%', '([^&]+)'); add_rewrite_tag('%state%', '([^&]+)'); add_rewrite_tag('%city%', '([^&]+)'); add_rewrite_tag('%town%', '([^&]+)'); }

3. Set query vars

   add_filter( 'query_vars', 'query_vars'); public function query_vars($query_vars) { $query_vars[] = 'country'; $query_vars[] = 'state'; $query_vars[] = 'city'; $query_vars[] = 'town'; return $query_vars; }

4. After that you can get the values by get_query_var get_query_var

This is not tested. But with your little effort this can be helpful. LEt me know in the comments below.