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    ▪php抽奖程序(抽取三名幸运观众)的核心代码      需求描述： 要求从每天投票的人中抽出幸运观众，每个用户只能中奖一次(各种情况都有)。 实现思路： 从数据库中取出所有参与者信息，编写程序抽出中奖者的uid 展示，后台审核通过入库.........

    ▪php抽奖小程序代码一例      一个用于学习的php抽奖程序，代码如下：   代码示例: <?php /**  *  php抽奖函数  *  * @param integer $first 起始编号  * @param integer $last  结束编号  * @param integer $total 获奖人数  *  * @.........

    ▪php分时间段的抽奖程序代码      对于本文介绍的php抽奖程序，作如下说明： 抽奖概率为：奖品总数为概率 抽奖程序 分时间段 一，数据库： 1，activity_lyq_lottery奖品表   lotteryid name礼品名称  sum 礼品总数  time_start .........

代码示例:

<?php
/**
* php抽奖程序核心代码
* edit www.
*/
$sql = “select distinct(***),username from *** where daystatus=0 and ***=’{$yesterday}’ and daystatus=0″ ;
$res = mysql_query()( $sql, $g_mysql ) or sys_exit( “系统忙，请稍候再试”, mysql_error() ) ;
$users = mysql_fetch_all( $res ) ; //获取所有参与者信息，每个人的信息唯一
$award_users = array() ;//建立中奖数组
if ( count( $users ) else {
$nums = get_award3( $users ) ; //执行抽奖程序，返回中奖者的下标
echo “获奖名单如下：” . ”

” ;
foreach ( $nums as $key => $value ) {
$award_users[] = $users[$value] ;
echo “uid :” . $users[$value]['uid'] . ” 昵称：” . $users[$value]['username'] ”
” ;
$uids[$key] = $users[$value]['uid'] ;
}
}
$_SESSION['users'] = ” ;
$_SESSION['users'] = $award_users ; //后台审核抽奖名单入库(确定)时用
echo <<< EOF
抽奖信息入库

EOF;
function get_award3( $users ) {//抽奖函数，为了防止有重复，多了个判断
$count = count( $users ) ;
$i = 0 ;
$result = array() ;
while ( $i < 3 ) {
$j = rand( 0, $count – 1 ) ;
if ( ! in_array( $j, $result ) ) {
$result[$i] = $j ;
$i++ ;
}
}
return $result ;
}
?>
 

代码示例:

<?php
/**
 *  php抽奖函数
 *
 * @param integer $first 起始编号
 * @param integer $last  结束编号
 * @param integer $total 获奖人数
 *
 * @return string
 *
*/
function isWinner($first, $last, $total)
{
 $winner = array();
 for ($i=0;;$i++)
 {
  $number = mt_rand($first, $last);
  if (!in_array($number, $winner))
   $winner[] = $number; // 如果数组中没有该数，将其加入到数组
  if (count($winner) == $total) break;
 }
 return implode(' ', $winner);
}

// for test
echo isWinner(1, 100, 5);
?>
 

代码示例:

<?php 
require_once (APP_ROOT . "./class/class_lib.php"); 
require_once libfile ( 'class/StoreProcs' ); 
pc_base::load_app_class('table_sub','',0); 
/**
 * 大转盘
 * @author Administrator
 *
 */ 
class lib_dzp_lottery extends app_lib { 
/**
 * 奖品表
 */ 
public $lottery = 'activity_lyq_lottery'; 
/**
 * 奖品日志表
 */ 
public $lottery_log = 'activity_lyq_lottery_log'; 
/**
 * n等奖品
 */ 
private $level = array(); 
/**
 * 奖品信息
 */ 
private $lotteryArray = array(); 
/***
 * 随机数结束位数
 */ 
private $max = 30000; 
/**
 * 类别 true:默认false:掌苏 
 */ 
private $type=true; 
/**
 * 中奖专业户
 */ 
private $tel_zy=false; 
/**
 * 读取配置
 */ 
public function load_setting() { 
$data=getcache('lyqdzp_setting'); 
define('TIME', time()); //当前时间 
define('L_START', strtotime($data['l_start'])); //报名开始时间 
define('L_END', strtotime($data['l_end'])); //报名结束时间,-1意思昨天 23：59：59 
define('L_DAY_START',$data['l_day_start']); //每天开始时间 
define('L_DAY_END', $data['l_day_end']);//每天结束时间 
define('L_DAY_CISHU', $data['l_day_cishu']);//每天获得奖品次数 
define('L_CISHU', $data['l_cishu']);//共计获得奖品次数 
define('L_MIN', 20);//最少来福币 
define('L_LFB', $data['l_lfb']);//减少来福币 
define('L_ZY', $data['l_zy']);  //专业户 
define('L_QUANSHU', $data['l_quanshu']);//圈数，大转盘开始圈数 
define('L_KONGJIANG', intval($data['l_kongjiang']));//空奖概率 
$host='www.****.com';   //现网 
if($_SERVER['HTTP_HOST']=='221.****0'){ 
$host='221.*****';  //测试机 
}elseif($_SERVER['HTTP_HOST']=='125.com'){ 
$host='125life.com';//本地 
}elseif(strpos($_SERVER['HTTP_HOST'],'192.168.')==0){ 
$host=$_SERVER['HTTP_HOST'].'/125e.com';//本地 
} 
define('L_SITE', 'http://'.$host.'/');  //域名最后加/ 
define('L_URL', L_SITE.'index.php');//访问地址 
 
//只能通过flash地址访问 
$s=L_SITE.'flash/dzp/i.swf'; 
if(preg_replace('/swf.*$/','swf',$_SERVER['HTTP_REFERER'])!=$s&&$this->type){ 
exit('老兄你已经得到得够多了，请通过正规途径摇奖!'); 
} 
$this->load(); 
} 
/**
 * 黑名单
 */ 
private $heimingdan = array(); 
/**
 * 读取奖品配置
 */ 
public function load() { 
$this->setlottery (); 
$this->heimingdan = getcache ( 'tel', 'blanklist' ); 
} 
private function setlottery() { 
$time=strtotime(date('Y-m-d',TIME)); 
$sql = "select u.*"; 
$sql .= ", (select COUNT(l.lotteryid)  from  " . DB::table ( $this->lottery_log ) . " AS l where u.lotteryid=l.lotteryid and l.iswinning='1')as num "; 
$sql .= " from " . DB::table ( $this->lottery ) . " AS u "; 
$sql .= " where 1 "; 
$sql .= " and u.isdisable='0' "; 
$sql .= " and u.time_start<='$time' "; 
$sql .= " and u.time_end>='$time' "; 
$sql .= " ORDER BY u.listorder "; 
$d = DB::fetch_all ( $sql ); 
$sum = 0; 
foreach ( $d as $r ) { 
$r ['sum_over'] = intval ( $r ['sum'] ) - intval ( $r ['num'] ); 
if ($r ['sum'] > 0) { 
$sum += $r ['sum']; 
} 
$r['msg']=str_replace()('{name}', $r['name'],$r['msg']); 
$this->lotteryArray [$r ['lotteryid']] = $r; 
} 
if($sum<100) $sum=1000;  
$m = 1; 
$probability = 0; 
$newsum=0; 
//80%空奖+20%奖 
$this->max = $sum + $sum * (L_KONGJIANG/100) / ((100-L_KONGJIANG)/100); 
foreach ( $this->lotteryArray as $r ) { 
if ($r ['sum'] > 0) { 
$newsum=$r ['sum']; 
if($r['probability']>0){ 
$probability=0; 
$probability=ceil($r ['sum']*100/$r['probability']); 
if($probability>0){ 
$newsum=$probability; 
} 
} 
$this->level [$r ['lotteryid']] ['start'] = $m; 
$this->level [$r ['lotteryid']] ['end'] = $m + $newsum; 
$m = $m + $r ['sum']; 
} 
} 
} 
/**
 * 检测用户是否中奖 0 谢谢参与,其他 返回奖品data数据
 * @param array $user array(uid,tel,ip)
 */ 
public function check($user) { 
if (intval ( $user ['uid'] ) < 1) { 
//没有登录 
return 0; 
} 
if(intval(TIME)<intval(L_START)){ 
//您来早了，活动还没有开始！ 
return -21; 
} 
if(intval(TIME)>intval(L_END)){ 
//已经过了活动时间，非常遗憾，谢谢！ 
return -22; 
} 
if ($this->get_user_lfb ( $user ['uid'] ) < L_MIN) { 
//$this->credit ( $user ['uid'], -11, $logid ); 
return -11; //您的来福币余额不足 
} 
 
$data = array( 
'uid' => $user ['uid'], 
'tel' => $user ['tel'], 
'ip' => $user ['ip'], 
'addtime' => time () 
); 
$logid = DB::insert ( $this->lottery_log, $data, true ); 
 
 
//检查用户  每天 已中奖品数 
if ($this->get_lottery ( $user ['uid'], strtotime ( date ( 'Y-m-d', TIME ) ), strtotime ( "+1day", strtotime ( date ( 'Y-m-d', TIME ) ) ), true ) >= L_DAY_CISHU) { 
$this->credit ( $user ['uid'], -12, $logid ); 
//很遗憾，你本次什么也没有抽到！ 
return -12; 
} 
//检查用户  全部 已中奖品数 
if ($this->get_lottery ( $user ['uid'], 0, 0, true ) > L_CISHU&&L_CISHU>0) { 
$this->credit ( $user ['uid'], -12, $logid ); 
//很遗憾，你本次什么也没有抽到！ 
return -15; 
} 
//检测黑名单,设置概率 
if ($this->checkhei ( $user ['tel'] ) > 0) { 
$this->credit ( $user ['uid'], -13, $logid ); 
//很遗憾，你本次什么也没有抽到！ 
return -13; 
} 
$lotteryid = $this->choujiang(); 
$this->credit ( $user ['uid'], $lotteryid<1?$lotteryid:0, $logid, $lotteryid ,$this->hao); 
if ($lotteryid > 0) { 
return $this->lotteryArray [$lotteryid]; 
} else { 
return -4; 
} 
//-1奖品已发完 
//-2本时段奖品已玩 
//-3不发奖品 
//-4奖品有问题 
//-11您的来福币余额不足 
//-12很遗憾，你本次什么也没有抽到！ 
//-13黑名单里面，很遗憾，你本次什么也没有抽到！ 
//-14中奖专业户禁止中高讲高奖品 
//-15已超过yizhong总奖品数 
//-16 掌苏传递手机 号错误 
//-21您来早了，活动还没有开始！ 
//-22已经过了活动时间，非常遗憾，谢谢！ 
//-23对不起，现在不是活动时间，活动时间为每天 
} 
/**
 * 显示
 * @param unknown_type $data
 */ 
public function show($data){ 
$ok=0;//3中奖 
$zz=0;//转盘度数 
$result='';//奖品名称 
$lotteryid=0;//奖品ID 
if(is_array($data)){ 
$ok=3; 
$result=$data['msg']; 
$zz=$data['angle']+L_QUANSHU*360; 
$lotteryid=$data['lotteryid']; 
}else{ 
$m=''; 
switch($data){ 
case 0:{ 
$m= '请先登录！'; 
}break; 
case -11:{ 
$m= '您的来福币余额不足！'; 
}break; 
case -12:{ 
$m= '很遗憾，你本次什么也没有抽到！'; 
}break; 
case -21:{ 
$m= '您来早了，活动还没有开始！'; 
}break; 
case -22:{ 
$m= '已经过了活动时间，非常遗憾，谢谢！'; 
}break; 
case -23:{ 
$m= '对不起，现在不是活动时间，活动时间为每天'.L_DAY_START.':00-'.L_DAY_END.':00'; 
}break; 
default:{ 
$m= '很遗憾，你本次什么也没有抽到！'; 
}break; 
} 
$result=$m; 
$ok=3;//3中奖 
$zz=360+L_QUANSHU*360;//再接再厉 
} 
header("Expires:Mon,26Jul199705:00:00GMT"); 
header("Cache-Control:no-cache,must-revalidate"); 
header("Pragma:no-cache"); 
header("Content-type:text/html;charset=utf-8"); 
if(!$this->type){ 
echo json_encode(array('return'=>$lotteryid, 
'msg'=>$result)); 
}else{ 
echo '<?xml version="1.0" encoding="UTF-8"?>'."\n"; 
echo '<gift>'."\n"; 
echo '<shift ok="'.$ok.'" zz="'.$zz.'" add="9" down="0" lid="0" result="'.$result.'"/>'."\n"; 
echo '</gift>'."\n"; 
} 
exit; 
} 
/**
 * 抽奖的号
 */ 
private $hao=0; 
/**
 * 抽奖开始
 */ 
private function choujiang() { 
$j = 0; 
$lotteryid = 0; 
$j = mt_rand ( 1, $this->max ); 
$this->hao=$j; 
foreach ( $this->level as $k => $r ) { 
if ($r ['start'] <= $j && $r ['end'] > $j) { 
$lotteryid = $k; 
break; 
} 
} 
$d = array( 
1 => array( 
'time' => strtotime ( date ( 'Y-m-d 00:00:00', TIME ) ),  
'time_end' => strtotime ( date ( 'Y-m-d 07:59:59', TIME ) )  
) 
); 
for ($i=2;$i<=17;$i++){ 
$d[$i]=array( 
'time' => strtotime ( date ( 'Y-m-d '.($i+6).':00:00', TIME ) ),  
'time_end' => strtotime ( date ( 'Y-m-d '.($i+6).':59:59', TIME ) )  
); 
} 
if($lotteryid>0){ 
$l=$this->lotteryArray [$lotteryid]; 
$sql = "select count(*) m from " . DB::table ( $this->lottery_log ); 
$sql .= " where lotteryid='$lotteryid' "; 
$s= intval ( DB::result_first ( $sql ) ); 
$sum_over=$l['sum']-$s; 
if($sum_over>0){ 
//本时段 奖品数 
$sum=0; 
foreach ($d as $k=>$r){ 
if(TIME>=$r['time']&&TIME<=$r['time_end']){ 
if($l['time_'.$k]>0){//个数限制 
$sum=$this->get_lottery_id(0,$r['time'],$r['time_end']+1,$lotteryid); 
if($sum>=$l['time_'.$k]){ 
//本时段奖品已玩 
$lotteryid=-2; 
break; 
} 
}elseif ($l['time_'.$k]==0){ 
//不发奖品 
$lotteryid=-3; 
break; 
}else{ 
//-1 不限制 
} 
 
} 
} 
if($this->tel_zy && $lotteryid>0&&$lotteryid<4){ 
$lotteryid=-14; 
} 
}else{ 
//奖品已发完 
$lotteryid=-1; 
} 
}else{ 
//奖品有问题 
$lotteryid=-4; 
} 
return $lotteryid; 
 
} 
/**
 * 检测黑名单和普通用户,概率
 * @param string $tel
 * @return 大于1 表示本次禁止抽
 */ 
private function checkhei($tel) { 
$n = mt_rand ( 1, 100 ); 
if (in_array ( $tel, $this->heimingdan ['tel'] ) && L_ZY > 0) { 
$this->tel_zy=true; 
if ($n > L_ZY) { 
return 1; 
} 
}else{ 
//号码检测 
if (!self::check_tel($tel)) { 
return 1; 
} 
} 
return 0; 
} 
/**
 * 合计奖品数
 * @param intval $uid
 * @param intval $start
 * @param intval $end
 * @param bool $bool true 获得奖品数 false 不统计
 * @return number
 */ 
private function get_lottery($uid = 0, $start = 0, $end = 0, $bool = false) { 
$sql = "select count(*) m from " . DB::table ( $this->lottery_log ); 
$sql .= " where 1 "; 
if (intval ( $start ) > 0) { 
$sql .= " and addtime>='$start' "; 
} 
if (intval ( $end ) > 0) { 
$sql .= " and addtime<'$end' "; 
} 
if ($bool) { 
$sql .= " and lotteryid>0 "; 
} 
if (intval ( $uid ) > 0) { 
$sql .= " and uid='$uid' "; 
} 
return intval ( DB::result_first ( $sql ) ); 
} 
/**
 * 合计奖品数
 * @param intval $uid
 * @param intval $start
 * @param intval $end
 * @param intval $bool 奖品id
 * @return number
 */ 
private function get_lottery_id($uid = 0, $start = 0, $end = 0, $lotteryid = 0) { 
 
$sql = "select count(*) m from " . DB::table ( $this->lottery_log ); 
$sql .= " where 1 "; 
if (intval ( $start ) > 0) { 
$sql .= " and addtime>='$start' "; 
} 
if (intval ( $end ) > 0) { 
$sql .= " and addtime<'$end' "; 
} 
if ($lotteryid>=0) { 
$sql .= " and lotteryid='$lotteryid' "; 
} 
if (intval ( $uid ) > 0) { 
$sql .= " and uid='$uid' "; 
} 
return intval ( DB::result_first ( $sql ) ); 
} 
/**
 * 获取用户来福币
 * @param intval $uid
 * @return number
 */ 
public function get_user_lfb($uid) { 
$sql = "select extcredits2 from sz_common_member_count "; 
$sql .= " where 1 "; 
$sql .= " and uid='$uid' "; 
return intval ( DB::result_first ( $sql ) ); 
} 
/**
 * 记录日志和更新用户来福币
 * @param intval $uid
 * @param intval $r  返回值
 * @param intval $logid
 * @param intval $lotteryid
 */ 
private function credit($uid, $result, $logid = 0, $lotteryid = 0,$hao=0) { 
$data = array(); 
if ($lotteryid > 0) { 
$data ['lotteryid'] = $lotteryid; 
$data ['iswinning'] = 1; 
} 
$data ['result'] = $result; 
$data ['hao'] = $hao; 
$data ['HTTP_REFERER'] = $_SERVER['HTTP_REFERER']; 
DB::Update ( $this->lottery_log, $data, " logid='$logid' " ); 
if (L_LFB > 0) { 
$sql = 'UPDATE sz_common_member_count SET extcredits2=extcredits2-' . L_LFB . ' WHERE uid=' . $uid; 
DB::query ( $sql ); 
$this->credit_log ( $uid, 'reduce', L_LFB, 1, '积分清零活动' ); 
} 
} 
/**
 *手机号检查
 */ 
private function check_tel($tel){ 
$different_network=table_sub::get_different_network(); 
if (!preg_match("/$different_network/",$tel)) { 
return false; 
} 
return true; 
} 
/**
 * 存储过程链接
 */ 
private $StoreProcs; 
/**
 * 来福币日志 存储过程
 * @param intval $uid
 * @param string $op add增加  reduce 消耗
 * @param intval $creditvalue 来福币
 * @param intval $credittype 1来福币 2来福点
 * @param string $oreason  说明
 */ 
private function credit_log($uid, $op, $creditvalue, $credittype, $oreason) { 
if (! $this->StoreProcs) { 
$this->StoreProcs = new StoreProcs (); 
} 
//调用存储过程 
$this->StoreProcs->query ( "call app_credit_log($uid,'$op','$credittype',1,$creditvalue,'$oreason')" ); 
} 
 
} 

代码示例:

<?php
$dzp=new lib_dzp_lottery(); 
$u=array('uid'=>$_G ['uid'],'tel'=>$_G ['tel'],'ip'=> $_G ['clientip']); 
$dzp->load_setting(); 
$dzp->show($dzp->check($u));
?>