Question

I have designed a website, it was working fine, but lately I modified the links for SEO purposes. I just replaced _ with -. Now I am getting a route not found error.

This is the matching array

$routes = array(
    array('url' => '/^products\/(?P<cat>\w+)$/', 'controller' => 'products', 'view' => 'products_list')
);

The link goes like this

http://localhost/product/sample-page

When I remove - or replace it with _ it works.

Answer 1

Change your regex from the shorthand character class \w, which matches letters, digits, and underscore, to a more explicit one to match upper and lower case letters, digits, _, and -.

$routes = array(
    array('url' => '/^products\/(?P<cat>[A-Za-z0-9_-]+)$/', 'controller' => 'products', 'view' => 'products_list')
);