command_len = spprintf(&command, 0, "delete %s %d", key, time);

command_len = spprintf(&command, 0, "delete %s", key);

Array
(
	[localhost:11211] => Array
		(
			[pid] => 24187
			[uptime] => 135454
			[time] => 1258121472
			[version] => 1.4.3
			[pointer_size] => 32
			[rusage_user] => 0.537918
			[rusage_system] => 1.757732
			[curr_connections] => 8
			[total_connections] => 1874
			[connection_structures] => 57
			[cmd_get] => 16287
			[cmd_set] => 7223
			[cmd_flush] => 33
			[get_hits] => 9940
			[get_misses] => 6347
			[delete_misses] => 0
			[delete_hits] => 0
			[incr_misses] => 0
			[incr_hits] => 1
			[decr_misses] => 0
			[decr_hits] => 1
			[cas_misses] => 0
			[cas_hits] => 0
			[cas_badval] => 0
			[bytes_read] => 234200204
			[bytes_written] => 272407668
			[limit_maxbytes] => 134217728
			[accepting_conns] => 1
			[listen_disabled_num] => 0
			[threads] => 4
			[conn_yields] => 0
			[bytes] => 59464725
			[curr_items] => 3430
			[total_items] => 7145
			[evictions] => 0
		)

	[localhost:11212] => Array
		(
			[pid] => 24226
			[uptime] => 135451
			[time] => 1258121472
			[version] => 1.4.3
			[pointer_size] => 32
			[rusage_user] => 0.131979
			[rusage_system] => 0.821875
			[curr_connections] => 5
			[total_connections] => 651
			[connection_structures] => 7
			[cmd_get] => 121
			[cmd_set] => 56
			[cmd_flush] => 0
			[get_hits] => 116
			[get_misses] => 5
			[delete_misses] => 0
			[delete_hits] => 2
			[incr_misses] => 0
			[incr_hits] => 52
			[decr_misses] => 0
			[decr_hits] => 52
			[cas_misses] => 0
			[cas_hits] => 0
			[cas_badval] => 0
			[bytes_read] => 11672
			[bytes_written] => 445678
			[limit_maxbytes] => 134217728
			[accepting_conns] => 1
			[listen_disabled_num] => 0
			[threads] => 4
			[conn_yields] => 0
			[bytes] => 453
			[curr_items] => 2
			[total_items] => 49
			[evictions] => 0
		)

	[localhost:11213] => Array
		(
			[pid] => 24280
			[uptime] => 135447
			[time] => 1258121471
			[version] => 1.4.3
			[pointer_size] => 32
			[rusage_user] => 0.156976
			[rusage_system] => 0.249962
			[curr_connections] => 5
			[total_connections] => 626
			[connection_structures] => 8
			[cmd_get] => 0
			[cmd_set] => 14
			[cmd_flush] => 0
			[get_hits] => 0
			[get_misses] => 0
			[delete_misses] => 0
			[delete_hits] => 0
			[incr_misses] => 0
			[incr_hits] => 0
			[decr_misses] => 0
			[decr_hits] => 0
			[cas_misses] => 0
			[cas_hits] => 0
			[cas_badval] => 0
			[bytes_read] => 9738
			[bytes_written] => 444431
			[limit_maxbytes] => 134217728
			[accepting_conns] => 1
			[listen_disabled_num] => 0
			[threads] => 4
			[conn_yields] => 0
			[bytes] => 394
			[curr_items] => 1
			[total_items] => 1
			[evictions] => 0
		)

)

accepting_conns	Accepting Connections	1 or 0 to indicate whether the server is currently accepting connections or not.
version	 		Memcache Version	 	Version string of this instance.
pid	 			Process ID	 			Process id of the memcached instance.
pointer_size	Pointer Size	 		Size of pointers for this host specified in bits (32 or 64).
threads	 		Threads	 				Number of worker threads requested.
rusage_system	System CPU Usage		Total system time for this instance (seconds:microseconds).
rusage_user	 	User CPU Usage	 		Total user time for this instance (seconds:microseconds).
time	 		Time	 				Current time (as epoch).
uptime	 		Uptime	 				Uptime for this memcached instance (seconds:microseconds).

limit_maxbytes	Memory Allocation		Number of bytes this server is allowed to use for storage.
bytes			Memory In Use			Current number of bytes used by this server to store items.
bytes_read		Total Read Memory		Total number of bytes read by this server from network.
bytes_written	Total Written Memory	Total number of bytes sent by this server to network.

curr_connections	 	Current Connections		Current number of open connections.
total_connections	 	Total Connections		Total number of connections opened since the server started running.
conn_yields	 			Connection Yields		Number of yields for connections.
connection_structures	Connection Structures	Number of connection structures allocated by the server.

listen_disabled_num	Listeners Disabled	The number of times socket listeners were disabled due to hitting the connection limit.
evictions			Evections	 		Number of valid items removed from cache to free memory for new items.
cmd_flush	 		CMD Flush Used	 	Total number of flush requests.
cmd_get	 			CMD Get Used	 	Total number of retrieval requests.
cmd_set	 			CMD Set Used	 	Total number of storage requests.
cas_badval	 		CAS Bad Value	 	Number of keys that have been compared and swapped, but the comparison (original) value did not match the supplied value.
cas_hits	 		CAS Hits	 		Number of keys that have been compared and swapped and found present.
cas_misses	 		CAS Misses	 		Number of items that have been compared and swapped and not found.
get_hits	 		Get Hits	 		Number of keys that have been requested and found present.
get_misses	 		Get Misses	 		Number of items that have been requested and not found.
delete_hits	 		Delete Hits	 		Number of keys that have been deleted and found present.
delete_misses	 	Delete Misses	 	Number of items that have been delete and not found.
incr_hits	 		Increment Hits	 	Number of keys that have been incremented and found present.
incr_misses	 		Increment Misses	Number of items that have been incremented and not found.
decr_hits	 		Decrement Hits	 	Number of keys that have been decremented and found present.
decr_misses	 		Decrement Misses	Number of items that have been decremented and not found.

curr_items	 Current Items	 Current number of items stored by this instance.
total_items	 Total Items	 Total number of items stored during the life of this instance.