大转盘实现逻辑

b2b2c

界面

后台界面实现展示

前台界面实现展示

表结构

syspromotion_lottery(转盘抽奖规则表)

syspromotion_lottery_result(转盘抽奖结果列表)

实现

核心代码实现

输入

Array
(
    [lottery_id] => 3
    [lottery_joint_limit] => 93
    [last_modified_time] => 1499138818
)

获取对应的规则数据(syspromotion_lottery)

$lotteryInfo = app::get('topc')->rpcCall('promotion.lottery.get',$params);

接口输出

Array
(
    [lottery_id] => 3
    [lottery_name] => 配送活动测试
    [lottery_desc] => 配送活动测试
    [status] => active
    [lottery_type] => 0
    [used_platform] => 1
    [lottery_joint_limit] => 100
    [lottery_point_num] => 1
    [lottery_rules] => Array
        (
            [0] => Array
                (
                    [bonus_type] => none
                    [bonus_desc] => 感谢您的参与
                    [rate] => 10
                    [color] => #cccccc
                )
            [1] => Array
                (
                    [bonus_type] => custom
                    [bonus_desc] => 小红书包
                    [img] => /images/b1/2f/29/e1211.png
                    [is_delivery] => on
                    [rate] => 90
                    [color] => #ff0000
                )
        )
    [created_time] => 1499138818
    [modified_time] => 1499138818
)

获得对应的使用次数(redis进行记录)

$jointNum = redis::scene('syspromotion')->get('lottery_joint_limit_'.$user_id.'-'.$data['lottery_id']);

对其中的规则进行重组

foreach ($lotteryInfo['lottery_rules'] as $key => $value) {
    $arr[$key] = $value['rate'];
}

拼凑后的结果为

Array
(
    [0] => 10
    [1] => 90
)
获得的KEY值为规则ID，value值为对应的概率

核心算法获得对应的规则
调用

$prizeNum = $this->getRand($arr);

核心调用算法

//获取奖项id算法
public function getRand($proArr){
    $result = "";
    $proSum = array_sum($proArr);
    foreach ($proArr as $key => $proCur) {
        $randNum = mt_rand(1, $proSum);
        if ($randNum <= $proCur) {
            $result = $key;
            break;
        } else {
            $proSum -= $proCur;
        }
    }
    unset ($proArr);
    return $result;
}

拿到对应的ID后，进行数据拼凑
拼凑后的结果为

Array
(
    [user_id] => 76
    [lottery_id] => 3
    [bonus_type] => custom
    [prizeInfo] => Array
        (
            [bonus_type] => custom
            [bonus_desc] => 小红书包
            [img] => /images/b1/2f/29/e1211d10f251ed8e39a69d6a5f060e08bebac7ea.png
            [is_delivery] => on
            [rate] => 90
            [color] => #ff0000
            [lottery_id] => 3
        )
    [lottery_name] => 配送活动测试
)

调用对应的接口(发放奖励)(promotion.bonus.issue)
输入为上部拼凑的结果

prizeInfo字段(下属数据进行对应的序列化操作[serialize])
其他的字段做对应的拼凑使用
Array
(
    [bonus_type] => custom
    [bonus_desc] => 小红书包
    [is_delivery] => on
    [img] => /images/b1/2f/29/e1211d10f251ed8e39a69d6a5f060e08bebac7ea.png
)
实际是对syspromotion_lottery_result进行数据储存使用

最终302跳转页面，以及对应的数据返回

Array
(
    [bonus_type] => custom
    [bonus_desc] => 小红书包
    [img] => /images/b1/2f/29/e1211d10f251ed8e39a69d6a5f060e08bebac7ea.png
    [is_delivery] => on
    [rate] => 90
    [color] => #ff0000
    [lottery_joint_limit] => 87
    [id] => 1
    [hongbaomoney] => 1
)

http返回前端数据格式

{ "success" : TRUE,
 "message" :{ "bonus_type" : "custom",
 "bonus_desc" : "\u5c0f\u7ea2\u4e66\u5305",
 "img" : "\/images\/b1\/2f\/29\/e1211d10f251ed8e39a69d6a5f060e08bebac7ea.png",
 "is_delivery" : "on",
 "rate" : "90",
 "color" : "#ff0000",
 "lottery_joint_limit" : 86,
 "id" : 1,
 "hongbaomoney" : TRUE }, "redirect" : "http:\/\/c.com\/jifen\/public\/index.php\/lottery.html?lottery_id=3" }