PHP转盘抽奖接口实例

 更新时间:2015年02月09日 15:48:00   作者:yhb241   我要评论
这篇文章主要介绍了PHP转盘抽奖接口的实现方法,实例分析了随机抽奖接口的实现原理与对应金沙国际官网操作的技巧,需要的朋友可以参考下

本文实例讲述了PHP转盘抽奖接口的实现方法。分享给大家供大家参考。具体如下:

这里的转盘抽奖随机返回一个转盘角度,概率可自己定义

lottery_get.php接口文件如下:

复制代码 代码如下:
<?php 
/*session_start();
if(!isset($_SESSION['zaszh_user_id'])){
    echo json_encode(array('status'=>'error','msg'=>'连接超时,请重新打开页面。'));
    exit;
}
$user_id = $_SESSION['zaszh_user_id'];*/ 
 
$user_id = 1; // 测试用 
 
// 转盘区域 
$arr_area = array( 
    '0' => array('min_angle'=>1,'max_angle'=>45,'prize'=>'小米'),
    '1' => array('min_angle'=>46,'max_angle'=>90,'prize'=>'拍立得'),
    '2' => array('min_angle'=>91,'max_angle'=>135,'prize'=>'10元话费'),
    '3' => array('min_angle'=>136,'max_angle'=>180,'prize'=>'5元话费'),
    '4' => array('min_angle'=>181,'max_angle'=>225,'prize'=>'谢谢参与'),
    '5' => array('min_angle'=>226,'max_angle'=>270,'prize'=>'谢谢参与'),
    '6' => array('min_angle'=>271,'max_angle'=>315,'prize'=>'谢谢参与'),
    '7' => array('min_angle'=>316,'max_angle'=>360,'prize'=>'谢谢参与') 
); 
 
// 选定区域 
$area_selected = array(); 
// 随机抽取 
$num_rand = mt_rand(1,10); 
switch($num_rand){ 
    // 小米 
    case 1: $area_selected = $arr_area[0]; break; 
    // 拍立得 
    case 2: $area_selected = $arr_area[1]; break; 
    // 10元话费 
    case 3: $area_selected = $arr_area[2]; break; 
    // 5元话费 
    case 4: $area_selected = $arr_area[3]; break; 
    // 谢谢参与 
    default: 
        switch(mt_rand(1,4)){ 
            case 1: $area_selected = $arr_area[4]; break; 
            case 2: $area_selected = $arr_area[5]; break; 
            case 3: $area_selected = $arr_area[6]; break; 
            case 4: $area_selected = $arr_area[7]; break; 
        } 
        break; 

echo $area_selected['prize']; 
 
require('connect_database.php'); 
// 扣除答题积分 
$mysqli->query("update zaszh_user set answer_points=answer_points-5 where id='{$user_id}' and answer_points>=5"); 
if($mysqli->affected_rows){ 
    // 有积分 
    // 记录积分消耗 
    $mysqli->query("insert into zaszh_answer_points_consume(user_id,points_consume,consume_for,create_date) values('{$user_id}',5,'lottery',unix_timestamp(now()))"); 
    switch($area_selected['prize']){ 
        case '小米': 
            $mysqli->query("update zaszh_prize_surplus set surplus=surplus-1 where prize='小米' and surplus>0"); 
            if($mysqli->affected_rows){ 
                // 有剩余 
                $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values('{$user_id}','小米',unix_timestamp(now()))"); 
                if($mysqli->affected_rows){ 
                    echo json_encode(array('status'=>'success','msg'=>'小米')); 
                }else{ 
                    // 获奖失败 
                } 
            }else{ 
                // 无剩余 
            } 
            break; 
        case '拍立得': 
            $mysqli->query("update zaszh_prize_surplus set surplus=surplus-1 where prize='拍立得' and surplus>0"); 
            if($mysqli->affected_rows){ 
                // 有剩余 
                $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values('{$user_id}','拍立得',unix_timestamp(now()))"); 
                if($mysqli->affected_rows){ 
                    echo json_encode(array('status'=>'success','msg'=>'拍立得')); 
                }else{ 
                    // 获奖失败 
                } 
            }else{ 
                // 无剩余 
            } 
            break; 
        case '10元话费': 
            $mysqli->query("update zaszh_telephone_charge_surplus set charge_surplus=charge_surplus-10 where date=substring(now(),1,10) and charge_surplus>=10"); 
            if($mysqli->affected_rows){ 
                // 有剩余 
                $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values('{$user_id}','10元话费',unix_timestamp(now()))"); 
                if($mysqli->affected_rows){ 
                    echo json_encode(array('status'=>'success','msg'=>'10元话费')); 
                }else{ 
                    // 获奖失败 
                } 
            }else{ 
                // 无剩余 
            } 
            break; 
        case '5元话费': 
            $mysqli->query("update zaszh_telephone_charge_surplus set charge_surplus=charge_surplus-5 where date=substring(now(),1,10) and charge_surplus>=5"); 
            if($mysqli->affected_rows){ 
                // 有剩余 
                $mysqli->query("insert into zaszh_award(user_id,prize,create_date) values('{$user_id}','5元话费',unix_timestamp(now()))"); 
                if($mysqli->affected_rows){ 
                    echo json_encode(array('status'=>'success','msg'=>'5元话费')); 
                }else{ 
                    // 获奖失败 
                } 
            }else{ 
                // 无剩余 
            } 
            break; 
        default: 
            echo json_encode(array('status'=>'success','msg'=>'谢谢参与')); 
    } 
}else{ 
    // 无积分 
    echo json_encode(array('status'=>'error','msg'=>'您的积分不足。')); 

$mysqli->close();

希望本文所述对大家的php程序设计有所帮助。

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