decrby #

Decrements the number stored at key by a provided integer value. If the key does not exist, it is set to 0 before performing the operation.

[Redis documentation]

decrby(key, value, [options], [callback]) #

Arguments	Type	Description
`key`	string	Key identifier
`value`	int	Decrement value
`options`	JSON Object	Optional parameters
`callback`	function	Callback

Options #

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

Return Value #

Returns the MemoryStorage object to allow chaining.

Callback Response #

Returns an integer containing the updated key value.

Usage #

<?php
use \Kuzzle\Kuzzle;
$kuzzle = new Kuzzle('localhost');
try {
  $value = $kuzzle->memoryStorage()->decrby('key', 42);
}
catch (ErrorException $e) {
}

Callback response:

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