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Redis · Command

SISMEMBER

SISMEMBER checks whether a member belongs to a Redis set. It returns 1 if present and 0 if absent or if the key does not exist.

Last updated

Since
1.0.0

Syntax

SISMEMBER key member

In-depth API docs are only for subscribers: parameters, examples, common mistakes and interview practice.

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  • SADD
  • SMISMEMBER
  • SMEMBERS
  • SREM

Source: SISMEMBER | Docs. Checked 2026-11-03.