## sInterStore ##### *Description* 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 `<span class="calibre12">FALSE</span>` in case of a missing key. ##### *Example* ``` <pre class="calibre9">$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: ``` <pre class="calibre9">int(2) array(2) { [0]=> string(4) "val4" [1]=> string(4) "val3" } ``` ##