src/Cache/Redis.php
protected function read(array $keys)
    {
        $map = $lookup = [];
        list($map, $lookup) = $this->eachKeys($keys, $map, $lookup);
        $result = [];
        foreach ($map as $key) {
            $result[$lookup[$key]] = $this->redis->get($key);
        }
        return $result;
    }
protected function read(array $keys)
    {
        $map = $lookup = [];
        list($map, $lookup) = $this->eachKeys($keys, $map, $lookup);
        $result = [];
        foreach ($map as $key) {
            $result[$lookup[$key]] = $this->redis->get($key);
        }
        return $result;
    }
Read values for a set of keys from cache

@param  array $keys list of keys to fetch

@return array   list of values with the given keys used as indexes