ALIOSS::get_object_group_meta PHP Method

    public function get_object_group_meta($bucket, $object_group, $options = null)
    {
        //options
        $this->validate_options($options);
        if (!$options) {
            $options = array();
        }
        //bucket
        $this->is_empty($bucket, OSS_BUCKET_IS_NOT_ALLOWED_EMPTY);
        //object group
        $this->is_empty($object_group, OSS_OBJECT_IS_NOT_ALLOWED_EMPTY);
        $options[self::OSS_BUCKET] = $bucket;
        $options[self::OSS_METHOD] = 'HEAD';
        $options[self::OSS_OBJECT] = $object_group;
        $options[self::OSS_CONTENT_TYPE] = 'application/xml';
        //重设Content-Type
        //$options[self::OSS_SUB_RESOURCE] = 'group';	   //设置?group
        $options[self::OSS_HEADERS] = array(self::OSS_OBJECT_GROUP => self::OSS_OBJECT_GROUP);
        $response = $this->auth($options);
        return $response;
    }