zcard

Returns the number of elements held by a sorted set.

[Redis documentation]


zcard(key, [options], callback)

Arguments Type Description
key string Key identifier
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 number of elements in a sorted set.

Usage

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<?php

use \Kuzzle\Kuzzle;


$kuzzle = new Kuzzle('localhost');

try {
  $count = $kuzzle->memoryStorage()->zcard('key');
}
catch (ErrorException $e) {

}

Callback response:

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