CodeIgniter extension to clean filename when uploading (but keeping has much as possible, unlike encrypt_name option).
Simple extention to CI_Upload that automatically passes the uploaded file's filename throught
convert_accented_caracters and url_title in order to eliminate non-url caracters.
Enabled by default, can be disabled by passing $config['clean_name'] = false; to Upload's initialize() method.
Simply place file MY_Upload.php in you application/libraries folder.