PHP实现抽奖功能实例代码

吾爱主题 阅读:94 2021-10-18 14:58:00 评论:0

在项目开发中经常会遇到花钱抽奖类型的需求。但是老板总是担心用户用小钱抽到大奖。这样会导致项目亏损。下边这段代码可以有效制止抽奖项目亏钱。

个人奖池:

语言:thinkphp redis mysql

表:desire抽奖商品表 desire_log用户抽奖奖品表 user_desire_log用户抽奖记录表   desire_risk抽奖风控表

需求:用户奖池分为进行中奖池 和已完成奖池 当用户抽到大奖后 用户个人奖池重置 否则将继续抽奖 最后一次抽奖必中大奖 通过风控金额来判断用户是否可以抽大奖

  当所有用户已完成的抽奖 盈利大于风控金额的时候可以让用户抽大奖 否则用户抽不到大奖

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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 <?php       //抽奖接口     public function desire()   {    $userData = $this ->userSessionData(); ///用户的唯一标识    $time = time();    $this ->limit_reward_time( $userData [ 'id' ], $time ); ///限制抽奖间隔时间 防止被恶意刷奖品    //活动开启开关    $num = input( 'num/d' );    if (! $num ) {     output( '1008' , '参数错误' );    }    if ( $num !=1){     if ( $num !=10){      if ( $num !=100){       output( '1008' , '参数错误' );      } else {       $send = $this ->draw( $num );      }     } else {      $send = $this ->draw( $num );     }    } else {     $send = $this ->draw( $num );    }    if ( $send != '金币不足' ) {     output( '200' , '列表' , $send );    } else {     output( '1012' , $send );    }   }          /////抽奖核心      public function draw( $num )   {    $userData = $this ->userSessionData();    $resultSend = Cache::get( '奖池名称加上用户的唯一标识,确保一人一奖池' . $userData [ 'id' ]); //获取个人奖池    if (! empty ( $resultSend )) {     $userRedis = unserialize(Cache::get( 'newdesiredraw' . $userData [ 'id' ])); ///将奖池序列化    } else {     $userRedis = '' ; ///当前用户不存在奖池    }      ///查询当前用户的金币    $desireDiamonds = Db::connect( 'db_qmconfig' )->name( 'user_money' )->where([ 'uid' => $userData [ 'id' ]])->field( 'diamonds' )->find();    $sendNum = $num ;    if ( $desireDiamonds [ 'diamonds' ] < $num ) {     return [ 'msg' => '金币不足' ]; ///判断当前用户的金币是不是够抽奖    }    $gift_height = 0; ///检测是否更新个人奖池和抽奖数量    $newNum = 0; ///检测下一轮抽奖数量    $suiji = Db::connect( 'db_qmconfig' )->name( 'desire' )->order( 'num desc' )->find(); ///随机小礼物    if ( $userRedis ) { ///如果用户奖池存在     $joins = [      [ 'gift_info f' , 'd.giftid = f.id' ]     ];     $gift = Db::connect( 'db_qmconfig' )->name( 'desire' )      ->alias( 'd' )      ->join( $joins )      ->where([ 'd.state' => 1])      ->order( 'f.price desc' )      ->field( 'f.name,f.price,f.egif,d.num,f.id,d.position' )->find();          ///查询抽奖表的礼物     if (! $gift ){      return [ 'msg' => '礼物查询错误' ];     }         ///查询用户的总抽奖数量     $user_all = Db::connect( 'db_qmconfig' )->name( 'user_desire_log' )->order( 'kind desc' )      ->where([ 'uid' => $userData [ 'id' ], 'state' =>0])->field( 'SUM(num) as kindNum' )->find();     //十次抽奖 必中     $count = count ( $userRedis );     if ( $num == 10) {      $where [] = [ 'd.state' , '=' , 1];      $where [] = [ 'd.ten' , '=' , 1];      $giftId = $this ->giftInfo( $where );      if ( $giftId ) {       $result [] = $giftId [0][ 'id' ];      }      $num = $num - 1;     }       ///百次抽奖 必中     if ( $num == 100) {      $where [] = [ 'd.state' , '=' , 1];      $where [] = [ 'd.hundred' , '=' , 1];      $giftId = $this ->giftInfo( $where );        $lwhere [] = [ 'd.state' , '=' , 1];      $lwhere [] = [ 'd.ten' , '=' , 1];      $lgiftId = $this ->giftInfo( $lwhere );      if ( $lgiftId ) {       for ( $l =0; $l <10; $l ++){        $result [] = $lgiftId [0][ 'id' ];       }      }        if ( $giftId ) {       $result [] = $giftId [0][ 'id' ];      }      $num = $num - 11;     }     if ( $num ==1){      if ( $user_all ){       $number1 = '' ;       $num1 = str_split ( $user_all [ 'kindNum' ]);       $number = $num1 [ count ( $num1 ) - 1];       if ( $user_all [ 'kindNum' ]>98){        $number1 = $num1 [ count ( $num1 ) - 2];       }       if (( $number ==9)&& ( $number1 !=9)){ //十抽必中        $where [] = [ 'd.state' , '=' , 1];        $where [] = [ 'd.ten' , '=' , 1];        $giftId = $this ->giftInfo( $where );        if ( $giftId ) {         $result [] = $giftId [0][ 'id' ];        }        $num = $num - 1;       }         if (( $number1 ==9) && ( $number ==9)){ //百抽必中        $where [] = [ 'd.state' , '=' , 1];        $where [] = [ 'd.hundred' , '=' , 1];        $giftId = $this ->giftInfo( $where );        if ( $giftId ) {         $result [] = $giftId [0][ 'id' ];        }        $num = $num - 1;       }      }     }         ////判断当前奖池的奖品是否够此次抽奖 如果奖池奖品数量不够此次抽奖 将此次奖池抽完后 获取剩下要抽将的数量 重置奖池 并且递归此方法传入剩下要抽的数量     if ( $count < $num ) {      $newNum = $num - $count ;      $num = $count ;     }     $user = Db::connect( 'db_qmconfig' )      ->name( 'desire_log' )->where([ 'uid' => $userData [ 'id' ]])      ->field( 'SUM(num) as num' )      ->find(); ///已抽数量     if (! $user ){      return [ 'msg' => '已抽数量有误' ];     }     $res [ 'zongshu' ] = Db::connect( 'db_qmconfig' )      ->name( 'desire' )->where([ 'state' => 1])      ->field( 'SUM(num) as num,checksum' )      ->find(); ///总数量     if (! $res [ 'zongshu' ]){      return [ 'msg' => '总数量有误' ];     }     $resNum = 0;     ////获取个人多少次抽奖     if (( $user [ 'num' ]+ $sendNum ) > $res [ 'zongshu' ][ 'checksum' ]) {      $res [ 'zongshu' ][ 'user_num' ] = $user [ 'num' ] % $res [ 'zongshu' ][ 'checksum' ]; ///获取余数      if (( $res [ 'zongshu' ][ 'user_num' ] + $sendNum ) > $res [ 'zongshu' ][ 'checksum' ]) {       ///获取这次抽奖的数量       $resNum = $sendNum - (( $res [ 'zongshu' ][ 'user_num' ] + $sendNum ) - $res [ 'zongshu' ][ 'checksum' ]);      } //    return ['msg'=>$res['zongshu']['user_num']];     } else {      $res [ 'zongshu' ][ 'user_num' ] = $user [ 'num' ];     }     $cruuy = 0;     ///随机选择奖池     for ( $i = 0; $i < $num ; $i ++) {      $send = array_rand ( $userRedis );      if ( $resNum > 0) {       ///如果本轮奖池抽完 并且没有抽到大奖 那么必中大奖       $result [] = $gift [ 'id' ];       $gift_height = 1; //抽到大奖后更改三个变量状态       $resNum =0;       $cruuy = 1;      } else {       if ( $userRedis [ $send ]== $gift [ 'id' ]){        $haveJoin = [         [ 'desire_log d' , 'd.cid = u.id' ],         [ 'gift_info f' , 'd.giftid = f.id' ]        ];        $all = Db::connect( 'db_qmconfig' )         ->name( 'user_desire_log' )         ->alias( 'u' )         ->where([ 'u.state' =>1])         ->field( 'SUM(u.num) as num' )->find(); //      var_dump($all);                ///如果抽到大奖        if ( $all [ 'num' ]==null){                   ///如果这是整个奖池第一轮抽奖 那么可以中大奖         $result [] = $suiji [ 'giftid' ];        } else {                           $alls = Db::connect( 'db_qmconfig' )->name( 'user_desire_log' )          ->alias( 'u' )          ->where([ 'u.state' =>1])          ->join( $haveJoin )          ->field( 'SUM(f.price*d.num) as num' )->find();                   ///查询奖池风控金额         $reskList = Db::connect( 'db_qmconfig' )->name( 'desire_risk' )->find();         $riskPrice = $all [ 'num' ] * 20 - $alls [ 'num' ];                   ///如果风控金额小于当前已完成抽奖的金额 那么代表软件处于盈利状态 可以中大奖         if (( $riskPrice >= $reskList [ 'price' ])&&( $cruuy ==0)){          $result [] = $userRedis [ $send ];          $gift_height = 1;          $cruuy = 1;         } else {                     ///如果风控金额大于当前已完成抽奖金额 不能中大奖 随机选择一次小奖品 替换大奖          $result [] = $suiji [ 'giftid' ];         }        }         } else {        $result [] = $userRedis [ $send ];       }      }            ///清空个人奖池此次抽奖的礼物      unset( $userRedis [ $send ]);     }         ////新增用户抽奖次数     $result = array_count_values ( $result );     $user_desire_list = Db::connect( 'db_qmconfig' )->name( 'user_desire_log' )->order( 'id desc' )->where([ 'uid' => $userData [ 'id' ]])->find();     if ( $user_desire_list ){      if ( $user_desire_list [ 'state' ]==0){       $user_desire_logData [ 'kind' ] = $user_desire_list [ 'kind' ]+1;      } else {       $user_desire_logData [ 'kind' ] = 1;      }     } else {      $user_desire_logData [ 'kind' ] = 1;       }     $user_desire_logData [ 'uid' ] = $userData [ 'id' ];     $user_desire_logData [ 'ctime' ] =time();     $user_desire_logData [ 'num' ] = $sendNum ;         ////更改此轮抽奖后 用户奖池的状态     if ( $gift_height ==1){      $user_desire_log_update = Db::connect( 'db_qmconfig' )->name( 'user_desire_log' )       ->where([ 'uid' => $userData [ 'id' ], 'state' =>0])->update([ 'state' =>1]);      $user_desire_logData [ 'state' ] = 1;     } else {      $user_desire_logData [ 'state' ] = 0;     }     $user_desire_log = Db::connect( 'db_qmconfig' )->name( 'user_desire_log' )->insertGetId( $user_desire_logData );     foreach ( $result as $k => $v ) {      if ( $resNum == ( $k + 1)) {       ///如果这次抽奖大于奖池总数 那么更新奖池并且抽奖剩下的次数       Cache::set( 'newdesiredraw' . $userData [ 'id' ], serialize([]));       return $this ->draw( $sendNum - ( $k + 1));      }            ////礼物新增用户背包        $data = [       'uid' => $userData [ 'id' ],       'giftid' => $k ,       'num' => $v ,       'ctime' => time(),       'cid' => $user_desire_log      ];      $join = [       [ 'gift_info f' , 'd.giftid = f.id' ]      ];      $gift_info = Db::connect( 'db_qmconfig' )->name( 'desire' )       ->alias( 'd' )       ->join( $join )       ->where([ 'd.giftid' => $k ])       ->field( 'f.name,f.egif,d.position' )->find();      $gift_infonum [ 'num' ] = $v ;      $list [ 'gift' ][] = array_merge ( $gift_info , $gift_infonum );      $desireLog = Db::connect( 'db_qmconfig' )->name( 'desire_log' )->insert( $data );      $userKnapsack = Db::connect( 'db_qmconfig' )->name( 'gift_knapsack' )->where([ 'uid' => $userData [ 'id' ], 'giftid' => $k ])->field( 'id,num' )->find();      if ( $userKnapsack ) {       $userKnapsackData = [        'num' => $v + $userKnapsack [ 'num' ],        'updatetime' => time()       ];       $userKnapsackUpdate = Db::connect( 'db_qmconfig' )->name( 'gift_knapsack' )->where([ 'id' => $userKnapsack [ 'id' ]])->update( $userKnapsackData );      } else {       $userKnapsackData = [        'num' => $v ,        'giftid' => $k ,        'uid' => $userData [ 'id' ],        'createtime' => time()       ];       $userKnapsackInsert = Db::connect( 'db_qmconfig' )->name( 'gift_knapsack' )->insert( $userKnapsackData );      }     }         ///增加用户消费记录     $userXfData = [      'uid' => $userData [ 'id' ],      'xf_price' => $sendNum ,      'xf_method' => 5,      'scene' => 19,      'status' => 1,      'ctime' => time()     ];     $userXf = Db::connect( 'db_qmconfig' )->name( 'xfprice' )->insert( $userXfData );     if ( $desireLog && $userXf ) {            ///扣除用户金币      $newDiamondsData = [       'diamonds' => $desireDiamonds [ 'diamonds' ] - $sendNum      ];      $newDiamonds = Db::connect( 'db_qmconfig' )->name( 'user_money' )->where([ 'uid' => $userData [ 'id' ]])->update( $newDiamondsData );     }                if ( $userRedis ) {      Cache::set( '用户奖池名称' . $userData [ 'id' ], serialize( $userRedis ));           ////如果此轮抽奖抽到大奖 重置用户个人奖池      if ( $gift_height == 1) {       Cache::set( '用户奖池名称' . $userData [ 'id' ], serialize([]));       $userChecksum = $res [ 'zongshu' ][ 'checksum' ] - ( $res [ 'zongshu' ][ 'user_num' ] + $sendNum );       $desireLogUserWhere = [        'uid' => $userData [ 'id' ],        'giftid' => 0,        'num' => $userChecksum ,        'ctime' => time(),        'cid' => $user_desire_log ,       ];              ///添加礼物抽中记录       $desireLogUser = Db::connect( 'db_qmconfig' )->name( 'desire_log' )->insert( $desireLogUserWhere );      }      $swhere [] = [ 'd.state' , '=' , 1];      $swhere [] = [ 'd.kind' , '=' , 1];      $res [ 'data' ] = $this ->giftInfo( $swhere );      if ( empty ( $res [ 'data' ])) {       output( '1008' , '奖池更新中' );      }            ////获取用户此轮抽奖数量 返回给前端 控制奖池动画百分比      $res [ 'zongshu' ] = Db::connect( 'db_qmconfig' )       ->name( 'desire' )->where([ 'state' => 1, 'kind' => 1])       ->field( 'checksum as num' )       ->find();      $user = Db::connect( 'db_qmconfig' )       ->name( 'desire_log' )->where([ 'uid' => $userData [ 'id' ]])       ->field( 'SUM(num) as num' )       ->find();      $res [ 'diamonds' ] = Db::connect( 'db_qmconfig' )       ->name( 'user_money' )->where([ 'uid' => $userData [ 'id' ]])       ->value( 'diamonds' );        if ( $user ) {       if ( $user [ 'num' ] > $res [ 'zongshu' ][ 'num' ]) {        $res [ 'zongshu' ][ 'user_num' ] = $user [ 'num' ] % $res [ 'zongshu' ][ 'num' ];         } else {        $res [ 'zongshu' ][ 'user_num' ] = $user [ 'num' ];       }      } else {       $res [ 'zongshu' ][ 'user_num' ] = 0;      }      $list [ 'info' ] = $res ;      return $list ; //    return ['msg'=>$res['zongshu']['user_num']];     } else {            ////如果当前用户奖池抽完奖了 那么重置此用户奖池      $where [] = [ 'd.state' , '=' , 1];      $where [] = [ 'd.kind' , '=' , 1];      $res = $this ->giftInfo( $where );      if ( empty ( $res )) {       return [ 'msg' => '奖池更新中' ];      }      $c = [];      foreach ( $res as $m => $n ) {            ///十抽必中奖品       if ( $n [ 'ten' ]==1){        $n [ 'num' ] = $n [ 'num' ] - $n [ 'checksum' ]/10;        $giftarr = array_fill (0, $n [ 'num' ]+ $n [ 'checksum' ]/10, $suiji [ 'giftid' ]);        $c = array_merge ( $c , $giftarr );        if ( $n [ 'num' ]<=0){         continue ;        }       }              ///百抽必中奖品       if ( $n [ 'hundred' ]==1){        $n [ 'num' ] = $n [ 'num' ] - $n [ 'checksum' ]/100;        $giftarr = array_fill (0, $n [ 'num' ]+ $n [ 'checksum' ]/100, $suiji [ 'giftid' ]);        $c = array_merge ( $c , $giftarr );        if ( $n [ 'num' ]<=0){         continue ;        }       }       $giftarr = array_fill (0, $n [ 'num' ], $n [ 'id' ]);       $c = array_merge ( $c , $giftarr );      }            ///随机打乱奖池      shuffle( $c );      Cache::set( '用户奖池名称' . $userData [ 'id' ], serialize( $c ));      if ( $newNum >0){              ///递归此方法 抽剩下的奖品       return $this ->draw( $newNum );      }     }    } else {     ///如果没有奖池 生成奖池     $where [] = [ 'd.state' , '=' , 1];     $where [] = [ 'd.kind' , '=' , 1];     $res = $this ->giftInfo( $where );     if ( empty ( $res )) {      return [ 'msg' => '奖池更新中' ];     }     $c = [];     foreach ( $res as $m => $n ) {      if ( $n [ 'ten' ]==1){       $n [ 'num' ] = $n [ 'num' ] - $n [ 'checksum' ]/10;       $giftarr = array_fill (0, $n [ 'num' ]+ $n [ 'checksum' ]/10, $suiji [ 'giftid' ]);       $c = array_merge ( $c , $giftarr );       if ( $n [ 'num' ]<=0){        continue ;       }      }      if ( $n [ 'hundred' ]==1){       $n [ 'num' ] = $n [ 'num' ] - $n [ 'checksum' ]/100;       $giftarr = array_fill (0, $n [ 'num' ]+ $n [ 'checksum' ]/100, $suiji [ 'giftid' ]);       $c = array_merge ( $c , $giftarr );       if ( $n [ 'num' ]<=0){        continue ;       }      }      $giftarr = array_fill (0, $n [ 'num' ], $n [ 'id' ]);      $c = array_merge ( $c , $giftarr );     }     shuffle( $c );     Cache::set( '用户奖池名称' . $userData [ 'id' ], serialize( $c ));         ///递归此方法抽奖     return $this ->draw( $num );    }   } ?>

以上就是PHP实现抽奖功能实例代码的详细内容,更多关于PHP实现抽奖功能的资料请关注服务器之家其它相关文章!

原文链接:https://www.cnblogs.com/phpclass/archive/2020/06/29/13210165.html

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