compile_binds($sql, $binds)

truncate([$table = ''])

send_error_message($number, $message)

set_dbprefix([$prefix = ''])

display_error()

print_debugger([$include = array('headers', 'subject', 'body')])

create_database($db_name)

offset($offset)

class CI_Email from($from[, $name = ''[, $return_path = NULL]])

class CI_Cache is_supported($driver)