SDK
SDK PHP v3.x
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# 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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