SDK PHP v3.x

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pfcount #

Returns the probabilistic cardinality of a HyperLogLog data structure, or of the merged HyperLogLog structures if more than 1 is provided (see pfadd).

[Redis documentation]

pfcount(keys, [options], callback) #

Arguments Type Description
keys string List of HyperLogLog key identifiers
options JSON Object Optional parameters
callback function Callback

Options #

Option Type Description Default
queuable boolean Make this request queuable or not true

Callback Response #

Returns an integer containing the aggregated probabilistic cardinality of HyperLogLog structures.

Usage #

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use \Kuzzle\Kuzzle;
$kuzzle = new Kuzzle('localhost');
try {
  $count = $kuzzle->memoryStorage()->pfcount(['key1', 'key2', '...']);
catch (ErrorException $e) {

Callback response:

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