[Update]
Added to the config but still not working
$config['permitted_uri_chars'] .= '%D8%A2%D8%A7%D8%A8%D9%BE%D8%AA%D8%AB%D8%AC%DA%86%D8%AD%D8%AE%D8%AF%D8%B0%D8%B1%D8%B2%D8%B3%D8%B4%D8%B5%D8%B6%D8%B7%D8%B8%D8%B9%D8%BA%D9%81%D9%82%DA%A9%DA%AF%D9%84%D9%85%D9%86%D9%88%D9%87%DB%8C%D9%8A%DB%B1%DB%B2%DB%B3%DB%B4%DB%B5%DB%B6%DB%B7%DB%B8%DB%B9%DB%B0';
$config['charset'] = 'UTF-8'; //by default
I have updated Codeigniter from 2.1 to 2.2 then to 3. The issue I have is in the routes in Arabic characters I get redirected to "Object not found" page
$route['cat/(:any)/(:any)'] = 'cat/index/$1/$2';
$route['tour/(:any)/(:any)'] = 'tour/index/$1/$2';
$route['sub_category/(:any)/(:any)'] = 'sub_category/index/$1/$2';
$route['default_controller'] = "home";
$route['404_override'] = '';
$route['order'] = 'order/index/';
$route[urlencode('البومات-الصور')] = 'gallery/index/$1'; //the Arabic one which is not working
And when I echo urlencode('البومات-الصور'); I get
%D8%A7%D9%84%D8%A8%D9%88%D9%85%D8%A7%D8%AA-%D8%A7%D9%84%D8%B5%D9%88%D8%B1
If I change urlencode('البومات-الصور') to anything in English like $route['albums'] it works fine.
I used the same route without encoding and I get the same error "object not found! The requested URL was not found on this server."
How to solve this issue?