HMGET – Redis

Available since 2.0.0.

时间复杂度： O(N) where N is the number of fields being requested.

Returns the values associated with the specified fields in the hash stored at key.

For every field that does not exist in the hash, a nil value is returned. Because a non-existing keys are treated as empty hashes, running HMGET against a non-existing key will return a list of nil values.

返回值

Array reply: list of values associated with the given fields, in the same order as they are requested.

redis> HSET myhash field1 "Hello"

(integer) 1

redis> HSET myhash field2 "World"

(integer) 1

redis> HMGET myhash field1 field2 nofield

1) "Hello"
2) "World"
3) (nil)

HMGET key field [field ...]

返回值