/**
* Performs the difference between N sets and returns it.
*
* @param array $keys
*
* @return string[] The difference of the first set will all the others.
* @link http://redis.io/commands/sdiff
* @example
* <pre>
* $redis->delete('s0', 's1', 's2');
* $redis->sAdd('s0', '1');
* $redis->sAdd('s0', '2');
* $redis->sAdd('s0', '3');
* $redis->sAdd('s0', '4');
* $redis->sAdd('s1', '1');
* $redis->sAdd('s2', '3');
* var_dump($redis->sDiff(array('s0', 's1', 's2')));
* //array(2) {
* // [0]=>
* // string(1) "4"
* // [1]=>
* // string(1) "2"
* //}
* </pre>
*/
public function sDiff($keys)
{
try {
return $this->client->sDiff($keys);
} catch (Exception $e) {
return $this->handleException($e, __FUNCTION__, func_get_args());
}
}
/**
* Performs the difference between N sets and returns it.
*
* @param array $keys
*
* @return string[] The difference of the first set will all the others.
* @link http://redis.io/commands/sdiff
* @example
* <pre>
* $redis->delete('s0', 's1', 's2');
* $redis->sAdd('s0', '1');
* $redis->sAdd('s0', '2');
* $redis->sAdd('s0', '3');
* $redis->sAdd('s0', '4');
* $redis->sAdd('s1', '1');
* $redis->sAdd('s2', '3');
* var_dump($redis->sDiff(array('s0', 's1', 's2')));
* //array(2) {
* // [0]=>
* // string(1) "4"
* // [1]=>
* // string(1) "2"
* //}
* </pre>
*/
public function sDiff($keys)
{
$this->appendToLog('SDIFF ' . implode(' ', $keys));
return $this->client->sDiff($keys);
}
