class CI_DB_forge add_column($table[, $field = array()[, $_after = NULL]])

highlight_phrase($str, $phrase[, $tag_open = ''[, $tag_close = '']])

highlight_code($str)

character_limiter($str[, $n = 500[, $end_char = '…']])

class CI_Lang load($langfile[, $idiom = ''[, $return = FALSE[, $add_suffix = TRUE[, $alt_path = '']]]])

get_csrf_token_name()

or_not_like($field[, $match = ''[, $side = 'both'[, $escape = NULL]]])

download($rempath, $locpath[, $mode = 'auto'])

num_rows()

rename($old_file, $new_file[, $move = FALSE])