Redis String: SETBIT

SETBIT key offset value

The Redis SETBIT key is used to sets or clears the bit at offset in the string value stored at key. It is depending on value, which can be either 0 or 1. When the key does not exist, a new string value is created. The string is grown to make sure it can hold a bit at offset. The offset argument is required to be greater than or equal to 0, and smaller than 232.

Syntax:

SETBIT KEY_NAME OFFSET

Available since

2.2.0.

Return Value

Integer reply: the original bit value stored at offset.

Return Value Type

Integer

Example: Redis SETBIT

First, set a key in redis and then get it.

redis 127.0.0.1:6379> SETBIT mykey 7 1
(integer) 0
redis 127.0.0.1:6379> GETBIT mykey 0
(integer) 0
redis 127.0.0.1:6379> GETBIT mykey 7
(integer) 1
redis 127.0.0.1:6379> GETBIT mykey 100
(integer) 0

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