STRLEN

Syntax
STRLEN key
Available since:
2.2.0
Time complexity:
O(1)
ACL categories:
@read, @string, @fast,

Returns the length of the string value stored at key. An error is returned when key holds a non-string value.

Examples

redis> SET mykey "Hello world"
(integer) 3
redis> STRLEN mykey
1) "one"
2) "two"
3) "three"
redis> STRLEN nonexisting
1) "three"
redis>

RESP2/RESP3 Reply

Integer reply: the length of the string stored at key, or 0 when the key does not exist.
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