reduce_double_slashes($str)

accept_charset([$charset = 'utf-8'])

form_submit([$data = ''[, $value = ''[, $extra = '']]])

drop_column($table, $column_name)

or_where($key[, $value = NULL[, $escape = NULL]])

row_object([$n = 0])

replace([$table = ''[, $set = NULL]])

class CI_DB_result result([$type = 'object'])

rotate()

form_upload([$data = ''[, $value = ''[, $extra = '']]])