介紹PHP基于Thinkphp5的砍價(jià)活動(dòng)相關(guān)設(shè)計(jì)

#活動(dòng)商品設(shè)置表： CREATE TABLE `hp_activity_bargain` (   `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '主鍵',   `product_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '商品ID',   `product_name` varchar(200) COLLATE utf8_unicode_ci NOT NULL COMMENT '商品名稱',   `activity_money` decimal(7,2) unsigned NOT NULL DEFAULT '0.00' COMMENT '活動(dòng)價(jià)',   `bargain_section` varchar(20) COLLATE utf8_unicode_ci NOT NULL DEFAULT '' COMMENT '砍價(jià)區(qū)間',   `bargain_section2` varchar(20) COLLATE utf8_unicode_ci NOT NULL DEFAULT '' COMMENT '砍價(jià)區(qū)間2【用戶線上砍價(jià)(新用戶砍價(jià)區(qū)間)】',   #忽略，此處是迭代后期地推而加上的   `join_count` smallint(3) unsigned NOT NULL DEFAULT '0' COMMENT '參與人數(shù)',   `product_desc` varchar(80) COLLATE utf8_unicode_ci NOT NULL COMMENT '活動(dòng)商品描述',   `attr1_id` smallint(5) unsigned NOT NULL DEFAULT '0' COMMENT 'attr1屬性',   `attr2_id` smallint(5) unsigned NOT NULL DEFAULT '0' COMMENT 'attr2屬性',   `type` tinyint(1) NOT NULL DEFAULT '0' COMMENT '0是線上，1是地推',   PRIMARY KEY (`id`),   KEY `product_id` (`product_id`),   KEY `attr2_id` (`attr2_id`),   KEY `attr1_id` (`attr1_id`),   KEY `type` (`type`) ) ENGINE=MyISAM AUTO_INCREMENT=7 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

#用戶參與進(jìn)度信息表 CREATE TABLE `hp_activity_bargainirg` (   `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '主鍵ID',   `activity_bargain_id` int(10) unsigned NOT NULL COMMENT 'activity_prodcuts主鍵id',   `product_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '參與活動(dòng)的商品',   `attr1_id` smallint(5) unsigned NOT NULL COMMENT 'attr1屬性id',   `attr2_id` smallint(5) unsigned NOT NULL COMMENT 'attr2屬性id',   `user_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '砍價(jià)商品發(fā)起的用戶ID',   `bargain_count` smallint(5) unsigned NOT NULL DEFAULT '0' COMMENT '被砍價(jià)次數(shù)',   `deal_money` decimal(7,2) unsigned NOT NULL DEFAULT '0.00' COMMENT '最終交易價(jià)格',   `create_time` int(11) unsigned NOT NULL DEFAULT '0' COMMENT '發(fā)起時(shí)間',   `is_addorder` tinyint(1) NOT NULL DEFAULT '0' COMMENT '是否下單(0:未下單，1已下單)',   `type` tinyint(1) NOT NULL DEFAULT '0' COMMENT '0是線上，1是地推',    #可以忽略，后期地推加上去的   PRIMARY KEY (`id`),   KEY `activity_bargain_id` (`activity_bargain_id`),   KEY `attr1_id` (`attr1_id`),   KEY `attr2_id` (`attr2_id`),   KEY `product_id` (`product_id`),   KEY `user_id` (`user_id`),   KEY `is_addorder` (`is_addorder`) ) ENGINE=InnoDB AUTO_INCREMENT=12 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

#參與砍價(jià)詳情表 CREATE TABLE `hp_activity_bargain_list` (   `id` int(10) unsigned NOT NULL AUTO_INCREMENT COMMENT '主鍵ID',   `bargain_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT 'activity_bargainirg表主鍵id',   `assistor_id` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '幫助者ID',   `create_time` int(10) unsigned NOT NULL DEFAULT '0' COMMENT '參與時(shí)間',   `bargain_money` decimal(5,2) unsigned NOT NULL DEFAULT '0.00' COMMENT '砍掉價(jià)格',   PRIMARY KEY (`id`),   KEY `assistor_id` (`assistor_id`),   KEY `bargain_id` (`bargain_id`) ) ENGINE=InnoDB AUTO_INCREMENT=3 DEFAULT CHARSET=utf8 COLLATE=utf8_unicode_ci;

 //線上砍價(jià)活動(dòng)列表     public function bargainirgAction()      {         $type = 0;         $way = input('param.way', '','string');         if (is_not_empty_string($way) && $way == 'live') {             $type = 1;         }         $pageSize = 10;         if (Request::isAjax()) {             $page = input('post.page', 0, 'intval');             $product_list = HmodelActivity::getActivityBargainProducts($type, $pageSize,  $page * $pageSize);             if (is_not_empty_array($product_list)) {                 return json_encode(['status' => 1, 'info' => $product_list]);                 } else {                 return json_encode(['status' => 0]);             }         }         $product_list = HmodelActivity::getActivityBargainProducts($type, 10, 0);         $view = new view();         $view->assign('bargainirgList',$product_list);         if ($type == 0) {             return $view->fetch('bargainirg');         } else {             return $view->fetch('bargainirg_live');         }              }      //砍價(jià)活動(dòng)商品詳情查看貢獻(xiàn)度請(qǐng)幫忙     public function bargaindetailAction()      {          $this->checkUserLogin();         $uid = session('userinfo.uid');         // $uid = 3;         $seting_id = input('param.id',0,'int');         $seting_info = HmodelActivity::getActivityProductsSeting($seting_id);  //砍價(jià)活動(dòng)商品設(shè)置         $bargain_section2 = !empty($seting_info['bargain_section2']) ? $seting_info['bargain_section2'] : 'no seting';         if (!is_not_empty_array($seting_info)) notFund();           $bargain_progress = HmodelActivity::returnProgressData( $seting_id, $seting_info['product_id'], $uid, $seting_info['attr1_id'],$seting_info['attr2_id'],  $seting_info['add_money'],$seting_info['type']);              if (!is_not_empty_array($bargain_progress) || $bargain_progress['user_id'] != $uid) notFund();                $username       = session('userinfo.username');         $user_info      = HmodelUser::getuser_info($uid);         $invite_code    = $user_info['invite_code'];         $encrypt_code   = encrypt_hopeband($bargain_progress['id'] . '(&)' .$bargain_progress['activity_bargain_id'] . '(&)' .$uid . '(&)' . $invite_code . '(&)'  . $seting_info['product_id'] . '(&)' . $seting_info['activity_money'] . '(&)' . $seting_info['bargain_section'] .  '(&)' . $seting_info['bargain_section2'] .'(&)'  . $seting_info['join_count'] . '(&)'. $bargain_progress['type'], 'E', 'Hp_HopeBand_Bargainirg');          //是否已經(jīng)下單         // $is_addorder    = HmodelActivity::checkIsAddorder($bargain_progress['id']);         $is_addorder    = $bargain_progress['is_addorder'];          //幫助列表         $assistor_list = HmodelActivity::getAssistorList($bargain_progress['id']);          $view = new view();         $view->assign([             'bar_code'           => $encrypt_code,             'seting_info'        => $seting_info,             'bargain_progress'   => $bargain_progress,             'assistor_list'      => $assistor_list,             'seting'             => $seting_id,             'is_addorder'        => $is_addorder         ]);         $view->assign();         return $view->fetch();      }      //幫忙砍價(jià)進(jìn)度底部砍價(jià)商品列表     public function bargainirgingAction ()     {         $url = $_SERVER['REQUEST_URI'];         $encrypt_code = substr(substr($url,29),0,strpos(substr($url,29), '?invite_code'));          $bargain_param = self::retrunBargainCode($encrypt_code);         $bargain_id          = $bargain_param['bargain_id'];         $bargainInfo         = HmodelActivity::getBargainirgProgress($bargain_id);         if ( !is_not_empty_array($bargain_param) || !is_not_empty_array($bargainInfo)) {             notFund();         }          $is_addorder = $bargainInfo['is_addorder'] == 1 ? true : false;            $uid = session('userinfo.uid');         $activity_product_id = $bargain_param['activity_product_id'];           if ($bargain_param['sponsor_uid'] == $uid) {             $this->redirect('bargaindetail',['id' => $activity_product_id]);         }         $product_id          = $bargain_param['product_id'];                  $bargain_list        = HmodelActivity::getActivityBargainProducts($bargain_param['type'], 999); //所有參與砍價(jià)活動(dòng)的商品          foreach ($bargain_list as $v) {             if ( $v['id'] == $activity_product_id) {                 $product_info = $v;             }         }          if (!is_not_empty_array($product_info)) notFund();         $type = $bargain_param['type'];         $activity_bargain_url = url('activity/bargainirg') ;          $view = new view();         $view->assign([             'bar_code'      => $encrypt_code,   //邀請(qǐng)碼             'bargainInfo'   => $bargainInfo,    //當(dāng)前砍價(jià)進(jìn)度             'product_info'  => $product_info,   //商品詳情             'bargain_list'  => $bargain_list,   //底部相關(guān)推薦              'is_addorder'   => $is_addorder,     //是否入庫(kù)             'activity_bargain_url' => $activity_bargain_url         ]);                  return $view->fetch();       }      //ajax砍價(jià)     public function goBargainAction ()      {         if (Request::isAjax()) {              $uid = session('userinfo.uid');             $username = session('userinfo.username');             $encrypt_code  = input('post.bar_code', '', 'string');             if (empty($uid) || empty($username)) {                 $this->checkUserLogin();             }             $bargain_param = self::retrunBargainCode($encrypt_code);             if (!is_not_empty_array($bargain_param)) {                 echo json_encode(array('status' => -3, 'info' => '不明錯(cuò)誤,請(qǐng)聯(lián)系客服'));die;             }              $seting_info = HmodelActivity::getActivityProductsSeting($bargain_param['activity_product_id']);  //砍價(jià)活動(dòng)商品設(shè)置             $stock = HmodelCategoryAttr::getproductstockbyidsonattr($seting_info['product_id'],$seting_info['attr1_id'],$seting_info['attr2_id']);              if ($stock['category_sum'] < 1) {                 echo json_encode(['status' => -1, 'info' => '已搶光!']);die;             }                           $userinfo = HmodelUser::getuser_info($uid);             $register_time = $userinfo['create_time'];              $is_new_user = false;           //用戶狀態(tài)[default:老用戶]             if (($register_time + (60 * 60 * 8)) > time() && HmodelActivity::checkUserIsbargainEd($uid) === false) {                 $is_new_user  = true;       //是新用戶             }                  $sponsor_uid   = $bargain_param['sponsor_uid'];              //發(fā)起者id             $bargain_id    = $bargain_param['bargain_id'];               //[activity_bargainirg]表主鍵id             $join_count    = $bargain_param['join_count'];               //設(shè)置砍價(jià)次數(shù)              $section       = $bargain_param['bargain_section'];          //砍價(jià)區(qū)間（老用戶）             $section2      = $bargain_param['bargain_section2'];         //砍價(jià)區(qū)間（新用戶）             $type          = $bargain_param['type'] == $seting_info['type'] ? $bargain_param['type'] : ''; //0：線上；  1：地推             $activity_money= $bargain_param['activity_money'];           //活動(dòng)最低價(jià)                         if (!is_not_empty_string($type)) {                 echo json_encode(array('status' => -3, 'info' => '不明錯(cuò)誤,請(qǐng)聯(lián)系客服'));die;             }              if ($uid == $sponsor_uid) {                 echo json_encode(array('status' => -1, 'info' => '不能給自己砍價(jià)'));die;             }              $state = HmodelActivity::checkPartBargain($bargain_id, $uid);  //是否幫伙伴砍過當(dāng)前參與的進(jìn)度              if ( $state !== false) {                 echo  json_encode(array('status' => -2, 'info' => '您已幫伙伴砍掉' . $state . '元啦，不要再砍啦!'));die;             }             if ($type == 1 && $is_new_user === false) {                 echo json_encode(array('status' => -4, 'info' => '抱歉，該活動(dòng)僅限新用戶參加！'));die;             }                         $state = HmodelActivity::givePartBargain($bargain_id, $sponsor_uid, $uid, $section, $section2, $join_count, $is_new_user,             $activity_money, $type);             if ($state == -1) {                  echo json_encode(array('status' => -3, 'info' => '已經(jīng)最低價(jià)啦，不能再砍啦！'));die;             }             if ($state === false) {                 echo json_encode(array('status' => -3, 'info' => '哎呀，失敗了！稍后幫我砍一次！'));die;             } else {                 if ($is_new_user === true) {                     echo json_encode(array('status' => 2, 'info' => '砍掉了' . $state .'元', 'deal_money' => $state));die;                 } else {                     echo json_encode(array('status' => 1, 'info' => '成功幫伙伴砍掉' . $state .'元!', 'deal_money' => $state));die;                  }             }          }     }         //返回砍價(jià)活動(dòng)相關(guān)數(shù)據(jù)     public static function retrunBargainCode( $encrypt_str = '')      {         $data   = [];         $code_str     = encrypt_hopeband($encrypt_str, 'D', 'Hp_HopeBand_Bargainirg');          $code_arr     = explode('(&)', $code_str);                if (is_not_empty_array($code_arr) && count($code_arr) == 10) {             $data['bargain_id']             = $code_arr[0];             //砍價(jià)活動(dòng)表主鍵id             $data['activity_product_id']    = $code_arr[1];             $data['sponsor_uid']            = $code_arr[2];             //砍價(jià)活動(dòng)發(fā)起者uid             $data['sponsor_invite_code']    = $code_arr[3];             //砍價(jià)活動(dòng)發(fā)起者邀請(qǐng)碼             $data['product_id']             = $code_arr[4];             //砍價(jià)活動(dòng)發(fā)起的商品id             $data['activity_money']         = $code_arr[5];             //活動(dòng)最低價(jià)格             $data['bargain_section']        = $code_arr[6];             //老用戶砍價(jià)區(qū)間             $data['bargain_section2']       = $code_arr[7];             //新用戶砍價(jià)區(qū)間             $data['join_count']             = $code_arr[8];             //設(shè)置砍價(jià)次數(shù)             $data['type']                   = $code_arr[9];             //設(shè)置砍價(jià)次數(shù)          }          return $data;     }

public function checkOrder2PayAction()     {         $this->checkUserLogin();         if (!Request::isAjax()) { notFund(); }         $seting_id = input('post.seting',0,'intval');         $user_id   = session('userinfo.uid');         //拿付款的額度和商品id         $BargainPayData = HmodelActivity::getBargainResult2Pay($seting_id, $user_id);         $stock = HmodelCategoryAttr::getproductstockbyidsonattr($BargainPayData['product_id'],$BargainPayData['attr1_id'],$BargainPayData['attr2_id']);         if ($stock['category_sum'] < 1) {             return json_encode(['status' => -2, 'info' => '已搶光!']);die;         }         if ($BargainPayData['is_addorder'] == 1) {              return json_encode(['status' => -2, 'info' => '此商品已經(jīng)購(gòu)買過，不能重復(fù)購(gòu)買！']);die;         }         if (!is_not_empty_array( $BargainPayData)) {             return json_encode(['status' => -1, 'info' => '不明錯(cuò)誤,請(qǐng)聯(lián)系客服!']);die;         }          $product_id = $BargainPayData['product_id'];          $attr1_name = '';         $attr2_name = '';         if (is_not_empty_array($attr1_info = HmodelActivity::getAttr1NameByAttrId($BargainPayData['attr1_id'], $product_id))){             $attr1_name = $attr1_info['attr'];         }         if (is_not_empty_array($attr2_info = HmodelActivity::getAttr2NameByAttrId($BargainPayData['attr2_id'], $product_id))){             $attr2_name = $attr2_info['attr'];         }         $data = [             'product_id'  => $product_id,             'prodcut_num' => 1,             'attr1'       => $attr1_name,             'attr2'       => $attr2_name,             'seting_id'   => $seting_id         ];         return json_encode(['status' => 1, 'info' => $data]);          }       //查看砍價(jià)后的預(yù)付款訂單信息     public function createActivityOrderAction ()     {         $this->checkUserLogin();          $uid = session('userinfo.uid');          $product_num = 1;         $attr1 = input("param.attr1", "" , "trim,string");         $attr2 = input("param.attr2", "" , "trim,string");         $seting_id = intval(input('param.seting_id', 0, 'intval'));         $product_id  = intval(input("param.product_id", "" , "intval"));          $pay_price_money = HmodelActivity::returnPayMoney($product_id, $seting_id, $uid);          $type = $pay_price_money['type'];          if (!is_not_empty_array($pay_price_money)) notFund();         Cookie::set('ready_finish_bargain', encrypt_hopeband($pay_price_money['id'] . '(&)', 'E', 'hp_ready_bargain_pay'));         $pay_info = $this->calculateFromProduct($product_id, $product_num, $attr1, $attr2, $uid , $pay_price_money['deal_money'], $type);         $def_address = HmodelUserAddress::getDefAddress($uid);         $view = new View();         $view->assign('def_address',$def_address);         $view->assign('product_carlist_bymerchantid',$pay_info['product_carlist_bymerchantid']);         $view->assign('total_price',sprintf("%.2f",$pay_info['total_price']));          $view->assign('total_delivery',$pay_info['total_delivery']);         $view->assign('seting_id',$seting_id);                     return $view->fetch('createorder');     }

//根據(jù)主鍵id查詢活動(dòng)產(chǎn)品相關(guān)屬性設(shè)置     public static function getActivityProductsSeting( $id = 0) {         $data = [];         if (!is_positive_integer($id)) {             return $data;         }         $sql = "SELECT a.`id`,a.`product_id`,a.`activity_money`,a.`bargain_section`,a.`join_count`,a.`product_desc`,a.`product_name`,                 a.`attr1_id`,a.`attr2_id`,                 b.`give_score`,b.`category_img`,b.`add_money`,b.`category_sum`                 FROM `hp_activity_bargain` AS a                 LEFT JOIN `hp_category_attr` AS b                 ON a.`attr1_id` = b.`attr1_son_id` AND a.`attr2_id` = b.`attr2_son_id` AND a.`product_id` = b.`category_id`                 WHERE a.`id` = $id                 LIMIT 1";         $res = Db::query($sql);         if (is_not_empty_array($res)) {             $data = $res[0];         }         return $data;     }     //通過主鍵id拿砍價(jià)活動(dòng)表的相關(guān)信息     public static function getBargainirgProgress($id = 0) {         $data = [];         $sql = "SELECT `id`,`activity_bargain_id`,`product_id`,`attr1_id`,`attr2_id`,`user_id`,`bargain_count`,`deal_money`,`is_addorder`                  FROM `hp_activity_bargainirg`                  WHERE `id` = $id LIMIT 1";         $res = self::query($sql);         if (is_not_empty_array($res)) {             $data = $res[0];         }         return $data;     }     //返回要砍     public static function returnProgressData($a_b_id = 0, $product_id = 0, $user_id = 0, $attr1_son_id = 0, $attr2_son_id = 0, $deal_money= 0){         $data = [];         $sql = "SELECT `id`,`activity_bargain_id`,`product_id`,`attr1_id`,`attr2_id`,`user_id`,`bargain_count`,`deal_money`,`is_addorder`                 FROM `hp_activity_bargainirg`                  WHERE `activity_bargain_id` = $a_b_id AND `attr1_id` = $attr1_son_id AND `attr2_id` = $attr2_son_id AND `product_id` = $product_id AND `user_id` = $user_id                  LIMIT 1";          $res = self::query($sql);         if (is_not_empty_array($res)) {             $data = $res[0];         } else {             $data['activity_bargain_id'] = $a_b_id;             $data['product_id']          = $product_id;             $data['user_id']             = $user_id;             $data['deal_money']          = $deal_money;              $data['attr1_id']            = $attr1_son_id;              $data['attr2_id']            = $attr2_son_id;                $data['create_time']         = time();              $data['bargain_count']       = 0;              Db::name('activity_bargainirg')->insert($data);             $insertId =  Db::name('activity_bargainirg')->getLastInsID();             $data['id']                  = $insertId;             // $data = self::getBargainirgProgress($insert_id);         }         return $data;     }     //通過 表[activity_products] 主鍵id 和 user_id 拿到用戶購(gòu)買前要付款的額度和購(gòu)買商品     public static function getBargainResult2Pay($a_b_id = 0, $user_id = 0) {         $data  = [];         if ( !is_positive_integer($a_b_id) || !is_positive_integer($user_id)) {             return $data;         }         $sql = "SELECT `id`,`deal_money`,`product_id`,`attr1_id`,`attr2_id` FROM `hp_activity_bargainirg`                 WHERE `activity_bargain_id` = $a_b_id AND `user_id` = $user_id                 LIMIT 1";         $res = Db::query($sql);         if (is_not_empty_array($res)) {             $data = $res[0];         }         return $data;     }      //檢測(cè)是否幫助伙伴砍價(jià)     //$bargain_id       [activity_bargainirg]表主鍵id     //$assistor_id      幫助砍價(jià)者用戶id     public static function checkPartBargain ($bargain_id = 0, $assistor_id = 0) {         $state = false;         if (!is_positive_integer($bargain_id) || !is_positive_integer($assistor_id)) {             return $state;         }         $sql = "SELECT `bargain_money` FROM `hp_activity_bargain_list`                 WHERE  `bargain_id` = $bargain_id AND  `assistor_id` = $assistor_id                  LIMIT 1";          $res = self::query($sql);          if (is_not_empty_array($res)) {              return $res[0]['bargain_money'];         }         return $state;      }      //查詢幫忙砍價(jià)的伙伴列表     public static function getAssistorList ( $bargain_id = 0){         $data = [];         if (is_positive_integer($bargain_id) && is_positive_integer($assistor_id))              return $data;         $sql = "SELECT a.`create_time`, a.`bargain_money`, b.`nickname`, b.`headimgurl`                  FROM `hp_activity_bargain_list` AS a                 LEFT JOIN `hp_user_auths` AS b                 ON a.`assistor_id` = b.`user_id`                 WHERE a.`bargain_id` = $bargain_id                 ORDER BY a.`id` DESC";          $data = self::query($sql);         return $data;     }      //拿到上次所砍掉的價(jià)格     public static function getBeforeMoney ( $bargain_id = 0, $limit = 1) {         $beforemoney_sum = 0;         $sql = "SELECT SUM(`bargain_money`) AS beforemoney_sum FROM                  (SELECT `bargain_money` FROM `hp_activity_bargain_list`                  WHERE `bargain_id` = $bargain_id                 ORDER BY `id` DESC                 LIMIT $limit) sum";                   $res = Db::query($sql);         if (is_not_empty_array($res)) {             $beforemoney_sum = $res[0]['beforemoney_sum'];         }         return $beforemoney_sum;     }           /**      * 砍價(jià)相關(guān)數(shù)據(jù)操作      *$bargain_id    [activity_bargainirg] 表主鍵id      *$sponsor_id    砍價(jià)發(fā)起者id      *$assistor_id   幫助砍價(jià)者id      *$min           最小值      *$max           最大值      *$join_count    設(shè)置要參與砍價(jià)的人數(shù)      *return bool      */     public static function givePartBargain($bargain_id = 0, $sponsor_id = 0, $assistor_id = 0, $min = 0, $max = 0,$join_count = 0) {         $state = false;         if (is_positive_integer($assistor_id) && $bargain_id > 0 && is_positive_integer($sponsor_id)) {             $bargainirg_info = Db::name('activity_bargainirg')->find($bargain_id);              if ( !$bargainirg_info ) {                 return $state;             }              $fp = fopen('./bargain_lock.txt','r');             $try = 5;              do {                 $lock = flock($fp,LOCK_EX);                 if(!$lock)                     usleep(5000);              } while (!$lock && --$try >= 0) ;             if ($lock) {                 Db::startTrans();                 try {                     $bargain_money = self::returnRandMoney($bargain_id, $min, $max, $join_count);                     /*-------------*/                     $id  = 0;                     $sql = "UPDATE `hp_activity_bargainirg`                              SET `deal_money` = `deal_money` - $bargain_money,`bargain_count` = `bargain_count`+ 1                              WHERE `id` = $bargain_id AND `user_id` = $sponsor_id AND `deal_money` > $bargain_money                             AND `bargain_count` < $join_count";                     $row = self::execute($sql);                     if ( $row > 0) {                         $insert_data = [];                         $insert_data['bargain_id']      = $bargain_id;                         $insert_data['assistor_id']     = $assistor_id;                         $insert_data['bargain_money']   = $bargain_money;                         $insert_data['create_time']     = time();                         $id = Db::name('activity_bargain_list')->insert($insert_data);                     }                     /*-------------*/                     if ($id > 0)                          $state = true;                      Db::commit();                 }catch(Exception $e){                     $state = false;                     Db::rollback();                 } 　　　　　　　　flock($lock,LOCK_UN); 　　　　　　　　fclose($lock);              }          }         if ($state !== false ) {             return $bargain_money;         }         return $state;     }      //返回要砍的價(jià)格     public static function returnRandMoney ($bargain_id = 0, $min = 0 ,$max = 0, $join_count = 0 ){         $randMoney       = self::randomFloat( $min, $max);                  //返回隨機(jī)價(jià)格           $prev_Progress   = self::getBargainirgProgress($bargain_id);                     $prev_bargain_count = $prev_Progress['bargain_count'];              //返回已經(jīng)被砍價(jià)的次數(shù)           $remainder = $prev_bargain_count % 3;           $bout_count = floor($join_count / 3) * 3;  //最后一輪結(jié)束的刀數(shù)       39         $last_num = $join_count - $bout_count;         $avg = ($min + $max) / 2;         $before_sum  = self::getBeforeMoney($bargain_id, $remainder);          if ($prev_bargain_count >= $bout_count) {             if ($last_num == 1){                 return $avg;             } elseif ($last_num == 2) {                 $end = $join_count - $prev_Progress['bargain_count'] ;                 if ($end == 2) {                     return $randMoney;                 } elseif($end == 1) {                     return $avg * 2 - $before_sum;                 }             }           }         // $remainder_num   = $join_count % 3;         //總回合數(shù)的余數(shù)         if ($remainder > 0) {             if ( $remainder == 1) {                  $point      = $max * 0.8;    //最大額度的80%                 $bout_sum   = 3 * $avg;                 if ($before_sum >= $point) {                     $randMoney = self::randomFloat($min, ($bout_sum - $before_sum) / 2);                 } else {                     $randMoney = self::randomFloat(($bout_sum - $before_sum) / 2 , $point);                 }             }             if ($remainder == 2) {                 $round_sum_money = 3 * $avg;                             $randMoney       = $round_sum_money - $before_sum;             }         }          return $randMoney;                      }     //拿隨機(jī)價(jià)格     public static function randomFloat($min = 0, $max = 1) {          return round($min + mt_rand() / mt_getrandmax() * ($max - $min),2);     }       //拿砍價(jià)活動(dòng)下所有商品     public static function getActivityBargainProducts ( $limit = 0, $offset = 0) {         $data = [];         $sql = "SELECT a.`id`,a.`product_id`,a.`activity_money`,a.`bargain_section`,a.`join_count`,a.`product_desc`,a.`product_name`,                 a.`attr1_id`,a.`attr2_id`,                 b.`give_score`,b.`category_img`,b.`add_money`,b.`category_sum`                 FROM `hp_activity_bargain` AS a                 LEFT JOIN `hp_category_attr` AS b                 ON a.`attr1_id` = b.`attr1_son_id` AND a.`attr2_id` = b.`attr2_son_id` AND a.`product_id` = b.`category_id`                 WHERE 1 = 1                 ORDER BY a.`id` DESC                 LIMIT $limit OFFSET $offset";         $data = self::query($sql);                 return $data;     }