Returns the position of the first bit set to 1 or 0 in a string, or in a substring.

[Redis documentation]

bitpos(key, bit, [options], callback)

Arguments Type Description
key string Key identifier
bit int Bit to search.
Allowed values: 0, 1
options JSON Object Optional parameters
callback function Callback


Option Type Description Default
end int Ending offset -1
queuable boolean Make this request queuable or not true
start int Starting offset 0

Callback Response

Returns an integer containing the first position of the searched bit in the string value.


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use \Kuzzle\Kuzzle;

$kuzzle = new Kuzzle('localhost');

try {
  $position = $kuzzle->memoryStorage()->bitpos('key', 0);
catch (ErrorException $e) {


Callback response:

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