404 issue with existing function

[eluser]CroNiX[/eluser]
Try passing the id to the function.

Code:

$route['item/(:any)'] = 'items/details/$1';

Which can also be accessed (if you do this) as a parameter to your details() method.

Code:

public function details($id = FALSE)
{
  if ($id !== FALSE)  //default of FALSE, will be string if present
  {
     $id = (int)$id;  //change id from string to int
     //lookup $id, etc...
  }
}