sdiffstore #
Computes the difference between the set of unique values stored at key
and the other provided sets, and stores the result in the key stored at destination
.
If the destination
key already exists, it is overwritten.
sdiffstore(key, keys, destination, [options], [callback]) #
Arguments | Type | Description |
---|---|---|
key | string | Key identifier to compare |
keys | array | list of set keys to compare with the set stored at key |
destination | string | Destination key identifier |
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 number of stored elements.
Usage #
<?php
use \Kuzzle\Kuzzle;
$kuzzle = new Kuzzle('localhost');
try {
$count = $kuzzle->memoryStorage()->sdiffstore('key', ['key1', 'key2', '...'], 'destination');
}
catch (ErrorException $e) {
}
Callback response:
3
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