ZREVRANGE

Synopsis

ZREVRANGE key start stop [WITHSCORES]

This command returns members ordered from highest to lowest score in the specified range at sorted set key. start and stop represent the high and low index bounds respectively and are zero-indexed. They can also be negative numbers indicating offsets from the beginning of the sorted set, with -1 being the first element of the sorted set, -2 the second element and so on. If key does not exist, an empty list is returned. If key is associated with non sorted-set data, an error is returned.

Return value

Returns a list of members found in the range specified by start, stop, unless the WITHSCORES option is specified (see below).

ZREVRANGE Options

WITHSCORES: Makes the command return both the member and its score.

Examples

You can do this as shown below.

$ ZADD z_key 1.0 v1 2.0 v2 3.0 v3

(integer) 3

$ ZREVRANGE z_key 0 2

1) "v3"
2) "v2"
3) "v1"

With negative indices.

$ ZREVRANGE z_key -2 -1

1) "v2"
2) "v1"

Both positive and negative indices.

$ ZREVRANGE z_key 1 -1 WITHSCORES

1) "v2"
2) "2.0"
3) "v1"
4) "1.0"

(0 and (2 are exclusive bounds.

$ ZREVRANGE z_key (0 (2

(empty list or set)

Empty list returned if key doesn't exist.

$ ZREVRANGE z_key_no_exist 0 2  WITHSCORES

(empty list or set)

See also

zadd, zcard, zrange, zrangebyscore, zrem