Redis Commands
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Returns the rank of member in the sorted set stored at key, with the scores ordered from high to low. The rank (or index) is 0-based, which means that the member with the highest score has rank 0.

The optional WITHSCORE argument supplements the command's reply with the score of the element returned.

Use ZRANK to get the rank of an element with the scores ordered from low to high.

@return

  • If member exists in the sorted set:
    • using WITHSCORE, @array-reply: an array containing the rank and score of member.
    • without using WITHSCORE, @integer-reply: the rank of member.
  • If member does not exist in the sorted set or key does not exist:
    • using WITHSCORE, @array-reply: nil.
    • without using WITHSCORE, @bulk-string-reply: nil.

Note that in RESP3 null and nullarray are the same, but in RESP2 they are not.

@examples

ZADD myzset 1 "one"
ZADD myzset 2 "two"
ZADD myzset 3 "three"
ZREVRANK myzset "one"
ZREVRANK myzset "four"
ZREVRANK myzset "three" WITHSCORE
ZREVRANK myzset "four" WITHSCORE

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