source/Redis/Connection.php
public function sismembers($key, $member) {
        try {
            return $this->getRedis()->sIsMember($key, $member);
        } catch (RedisException $ex) {
            throw new ConnectException();
        }
    }
public function sismembers($key, $member) {
        try {
            return $this->getRedis()->sIsMember($key, $member);
        } catch (RedisException $ex) {
            throw new ConnectException();
        }
    }
public function sismembers ( $ key , $ member ) { try { return $ this -> getRedis ( ) -> sIsMember ( $ key , $ member ) ; } catch ( RedisException $ ex ) { throw new ConnectException ( ) ; } }
Check that member is a member of the set
@param string $key key
@param mixed $member member
@return bool check result
@throws ConnectException exception on connection to redis instance
Check that member is a member of the set