用PHP做了一个领取优惠券活动的示例代码

青衣

业务需求
优惠券活动，具体还是要根据自己的需求。以下是最近实现的优惠券活动，主要的业务需求：根据后端设置优惠券模板，用户类型设置，优惠券活动的开始与结束时间，最后生成不同的优惠券活动链接。
代码环境：
源码主要laravel5.8，一整个活动要贴的代码很多，下面主要贴核心代码，仅供参考。主要还是要根据自己的业务需求来实现功能吧。
以下是后端截图，做成模块化

前端需要做的设置与限制：
1 判断优惠券是否存在或者停用
2 判断活动开始时间与优惠券开始时间
接着领取活动优惠券，需要判断以下情况：
1 活动已结束
2 活动为开始时
3 活动为新用户领取，而领取的用户是老用户
4 活动为老用户领取，而领取的用户是新用户
5 优惠券是否领取完
6 已领取过优惠券提示
7 领取成功
下面核心代码实现

/**
 * function:优惠券领取处理
 * author:cyw0413
 * @param $params
 * @return array
 * @throws \exception
 */
public function docoupon($params)
{
  $activity_id = $params['activity_id'];
  if(!$params){
  throw new \exception("参数错误！");
  }
 
  $preg_phone = '/^1[34578]\d{9}$/ims';
  $is_mobile = preg_match ($preg_phone, $params['mobile']);
  if ($is_mobile == 0) {
  throw new \exception("手机号码不正确！");
  }
 
  //隐藏手机号码中间4位
  $str_mobile = substr_replace($params['mobile'],'****',3,4);
 
  $activity = $this->find($activity_id);
  if(empty($activity)){
  throw new \exception("不存在此活动");
  }
 
  $activity_link = $activity->activitylink->where('coupon_status',0); //只选择不停用的优惠券
  if(count($activity_link) <= 0){
  throw new \exception("优惠券不存在或者已经停用");
 
  }else{
 
  //查找注册用户id
  $showuser = $this->showuser($params['mobile']);
  //主要是过滤掉领取优惠券为0的，用laravel的同学注意看看
  $detail = $activity_link->each(function($item,$index) use ($showuser) {
 
    $diffcouponquantity = $this->diffcouponquantity($item['config_id'],$item['quantity'],$item['activity_id'],$showuser);
    $item->title = $this->getcouponname($item['config_id'])['name'];
    $item->number = $item['quantity'];
    $item->msg  = $diffcouponquantity ['msg'];
    $item->diff   = $diffcouponquantity ['diff'];
    $item->code   = $diffcouponquantity ['code'];
  })->toarray();
 
  if(count($detail) == 1){
    foreach($detail as $val){
    if($val['diff'] == 1 && $val['code'] == '400'){
      throw new \exception($detail[0]['msg']);
    }
    }
 
  }
 
  $collection_coupon = collect($detail);
  $collection_coupon = $collection_coupon->where('diff', '<=' ,'0');  //去除优惠券剩余数量为0，或者领取优惠券数量-剩余数量 > 0
 
  }
  //判断活动开始时间与优惠券开始时间
  $act_coupon = activitycouponbasemodel::where('activity_id',$activity['activity_id'])->first();
  $check_time = $this-> checkcoupontime($act_coupon['start_time'],$activity_link);
  if($check_time == 'error'){
  throw new \exception("优惠券领取时间未开始,暂不可领取");
  }
 
  //领取活动有以下几种情况
  //1: 活动已结束
  if($activity['end_time'] < date("y-m-d h:i:s") || $activity['status'] == 1){
  $result = [
    'code' => 1,
  ];
  return $result;
  }
 
  //6 活动为开始时
  if($activity['start_time'] > date("y-m-d h:i:s") || $activity['status'] == 1){
  $result = [
    'code' => 6,
  ];
  return $result;
 
  }
 
  $checkuser = $this->haveuser($params['mobile']); //检查是新用户，还是老用户 根据自己的业务需求做，这个方法就不贴了
  //2: 活动为新用户领取，而领取的用户是老用户
  if($activity['user_type'] == 1 && !empty($checkuser)){
  $result = [
    'code' => 2,
  ];
  return $result;
  }
 
  //3：活动为老用户领取，而领取的用户是新用户
  if($activity['user_type']==2 && empty($checkuser)){
  $result = [
    'code' => 3,
  ];
  return $result;
  }
 
 
  //4：优惠券是否领取完
  $coupon = $this->getcouponexpire($collection_coupon,$params['mobile']); //这里提示有一个优惠券列表，根据自己的业务需求做，这个方法就不贴了
  //return $coupon;
  if($coupon == 1){
  $result = [
    'code' => 4,
  ];
  return $result;
  }
 
  //5：已领取过优惠券提示
  $usercoupon = '';
  $userrate = '';
  if(!empty($checkuser)){
  //user存在则为老用户，再检查是否领取过
  $usercoupon = $this->getusercoupon($collection_coupon,$checkuser['user_id']);
  $userrate = $this->getusercouponrate($checkuser['user_id'],$activity['activity_id']);
  }else{
  //新用户，检查是否注册过
  $var_user = userbasemodel::where('user_name',$params['mobile'])->first();
  if(!empty($var_user)){
    $usercoupon = $this->getusercoupon($collection_coupon,$var_user['user_id']);
    $userrate = $this->getusercouponrate($var_user['user_id'],$activity['activity_id']);
  }
  }
 
  //return $userrate;
 
  if($usercoupon == 1){
  $result = [
    'code' => 5,
    'phone'=> $str_mobile,
    'coupon' => $userrate,
    'is_get' => false,
  ];
  return $result;
  }
 
  //5：领取成功
  //如果活动规定是新老用户0，新用户1，老用户2
  $getcouponsuccess = $this->getcouponsuccess($activity['user_type'],$checkuser,$collection_coupon,$params['mobile']);
  //return $getcouponsuccess;
  if($getcouponsuccess['status'] == 200){
  $result = [
    'code' => 5,
    'phone'=> $str_mobile,
    'coupon' => $getcouponsuccess['result'][0],
    'is_get' => true,
  ];
  return $result;
  }
 
 
}

用户领取优惠券并发放优惠券

/**
 * function:用户领取活动
 * author:cyw0413
 * @param $user_type
 */
public function getcouponsuccess($user_type,$user,$coupon,$mobile)
{
  if(count($coupon) > 0){
 
  switch ($user_type){
    case 1:
    //新用户领取，如果从来没注册过就要新增用户
    $res = $this->adduser($mobile,$coupon); 
    return [
      'result' => $res,
      'status' => 200
    ];
    break;
    case 2:
    //老用户领取
    $res = $this->insertusercoupon($user,$coupon);
    return [
      'result' => $res,
      'status' => 200
    ];
    break;
    default:
    //新老用户领取,判断是新用户还是老用户,这里的$user是有无配送单，有则为老用户；
    if(empty($user)){
      $res = $this->adduser($mobile,$coupon);
    }else{
 
      $res = $this->insertusercoupon($user,$coupon); //老用户，直接发放优惠券
    }
    return [
      'result' => $res,
      'status' => 200
    ];
    break;
  }
  }else{
  throw new \exception("优惠券不存在或者已经停用");
  }
 
 
}

领取成功，则发放优惠券

/**
 * function:发放优惠券
 * author:cyw0413
 * @param $user
 * @param $coupon
 */
public function insertusercoupon($user,$coupon)
{
  $relate = [];
  foreach($coupon as $item){
 
  $res = couponconfigsendbasemodel::where([
    'config_id'=>$item['config_id'],
    'status'  => 0,
  ])->first();
 
  if(empty($res) || (!empty($res) && $res['is_send'] == 0) ){
    throw new \exception("优惠券未发放,暂不可领取");
  }
 
  //发放优惠券，有多少张就添加多少张，这里扣除优惠券时，主要用不同的coupon_sn来区别
  $onlycoupon = $this->getcouponname($item['config_id']);
  if ($onlycoupon['expire_type'] == 0) {
    $start_time = $onlycoupon['expire_start_time'];
    $end_time = $onlycoupon['expire_end_time'];
  } else {
    $start_time = date('y-m-d h:i:s');
    $end_time = date('y-m-d h:i:s', time()+86400*$onlycoupon['expire_type']);
  }
 
  $result = [
    'user_id'  => $user['user_id'],
    'config_id' => $item['config_id'],
    'name'   => $onlycoupon['name'],
    'get_type' => $onlycoupon['get_type'],
    'amount'  => $onlycoupon['amount'],
    'require_price' => $onlycoupon['require_price'],
    'status'  => 1,
    'start_time'  => $start_time,
    'end_time'   => $end_time,
  ];
  for($i=0; $i < $item['quantity'];$i++){
    $result['coupon_sn'] = 'b'.mt_rand(1, 10000) . strtoupper(uniqid(mt_rand(1, 10000)));
    $usercoupon = usercouponbasemodel::create($result);
  }
 
  //扣除相应的优惠券数量,这里用到了锁表，防止并发时，优惠券为-1
  $couponconfig = couponconfigbasemodel::where('config_id',$item['config_id'])->lockforupdate()->first();
  if($couponconfig->left_quantity > 0 ){
    if($couponconfig->left_quantity >= $item['quantity']){
    $couponconfig->left_quantity = $couponconfig->left_quantity-$item['quantity'];
    $couponconfig->save();
    }else{
    throw new \exception("优惠券剩余数量不够扣减");
    }
 
  }
 
 
  $relate = [
    'coupon_id' => $usercoupon->coupon_id,
    'user_id'  => $user['user_id'],
    'config_id' => $item['config_id'],
    'activity_id' => $item['activity_id']
  ];
 
  activitycouponuserrelatebasemodel::create($relate);
 
  $relate[] = $this->getusercouponrate($user['user_id'],$item['activity_id']);
 
 
  }
 
  return $relate;
}

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持CodeAE代码之家。
原文链接：https://mp.weixin.qq.com/s/vt-_Awa0wmhVNMM9CwSGqg