[eluser]JoostV[/eluser]
1. Load the URL helper:
Code:
$this->load->helper('url');
2. Use function
to remove/replace all unwanted characters from strings (also replaces spaces with dashes).
I haven't tested this with "ą", but it replaces characters like ë and é with a regular "e"
EDIT: sorry, doesn't work. Just tested. The function merely removes "ą". You will probably have to write your own preg_replace function.