zrank #

Returns the position of an element in a sorted set, with scores in ascending order. The index returned is 0-based (the lowest score member has an index of 0).

[Redis documentation]

zrank(key, member, [options], callback) #

Arguments	Type	Description
`key`	string	Key identifier
`member`	string	Member of the sorted set
`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 member's position in the sorted set.

Usage #

<?php
use \Kuzzle\Kuzzle;
$kuzzle = new Kuzzle('localhost');
try {
  $position = $kuzzle->memoryStorage()->zrank('key', 'foo');
}
catch (ErrorException $e) {
}

Callback response:

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