Qiniu\Storage\BucketManager::twoKeyBatch PHP Method

    private static function twoKeyBatch($operation, $source_bucket, $key_pairs, $target_bucket)
    {
        if ($target_bucket === null) {
            $target_bucket = $source_bucket;
        }
        $data = array();
        foreach ($key_pairs as $from_key => $to_key) {
            $from = \Qiniu\entry($source_bucket, $from_key);
            $to = \Qiniu\entry($target_bucket, $to_key);
            array_push($data, $operation . '/' . $from . '/' . $to);
        }
        return $data;
    }