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:<"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。