database_exists($database_name)

table_exists($table_name)

add_key($key[, $primary = FALSE])

ol($list, $attributes = '')

get_id($url)

is_write_type($sql)

delete([$table = ''[, $where = ''[, $limit = NULL[, $reset_data = TRUE]]]])

request($incoming)

initialize([$config = array()])

chmod($path, $perm)