(PECL memcached >= 0.1.0)
Represents a connection to a set of memcached servers.
$cas_token
,$server_key
,$key
,$value
,$expiration
= ?$server_key
,$key
,$offset
= 1,$initial_value
= 0,$expiry
= 0$server_key
,$keys
,$with_cas
= ?,$value_cb
= ?$server_key
,$key
,$offset
= 1,$initial_value
= 0,$expiry
= 0