sInterStore 命令/方法/函数

Performs a sInter command and stores the result in a new set.

执行一个交集操作,并把结果存储到一个新的SET容器中。


Parameters

Key: dstkey, the key to store the diff into.

key 储存结果的SET容器KEY


Keys: key1, key2... keyN. key1..keyN are intersected as in sInter.

求交集的KEYS


Return value

INTEGER: The cardinality of the resulting set, or FALSE in case of a missing key.


Example

$redis->sAdd('key1', 'val1');

$redis->sAdd('key1', 'val2');

$redis->sAdd('key1', 'val3');

$redis->sAdd('key1', 'val4');


$redis->sAdd('key2', 'val3');

$redis->sAdd('key2', 'val4');


$redis->sAdd('key3', 'val3');

$redis->sAdd('key3', 'val4');


var_dump($redis->sInterStore('output', 'key1', 'key2', 'key3'));

var_dump($redis->sMembers('output'));


Output:

int(2)


array(2) {

  [0]=>

  string(4) "val4"

  [1]=>

  string(4) "val3"

}