function getRand($proArr, $proCount) {
$result = '';
$proSum = 0;
foreach ($proCount as $key => $val) {
if ($val <= 0) {
continue;
} else {
$proSum = $proSum + $proArr[$key];
}
}
foreach ($proArr as $key => $proCur) {
if ($proCount[$key] <= 0) {
continue;
} else {
$randNum = mt_rand(1, $proSum);
if ($randNum <= $proCur) {
$result = $key;
break;
} else {
$proSum -= $proCur;
}
}
}
unset($proArr);
return $result;
}
奖品设置$prizes = array(
0 => array(
\公众id\"大众 => 0, //中奖id
\公众name\"大众 => \公众感激参与\"大众, //奖品名称
\公众count\"大众 => \"大众100\公众, //库存
),
1 => array(
\"大众id\"大众 => 1,
\"大众name\"大众 => \"大众罗浮山门票\"大众,
\公众count\公众 => \公众40\"大众,
),
2 => array(
\"大众id\"大众 => 2,
\"大众name\"大众 => \"大众罗浮山嘉宝田温泉体验券\"大众,
\"大众count\"大众 => \公众40\"大众,
),
3 => array(
\"大众id\"大众 => 3,
\"大众name\"大众 => \公众精美旅游书本《山水酿惠州》\"大众,
\公众count\"大众 => \"大众40\"大众,
),
4 => array(
\"大众id\公众 => 4,
\"大众name\"大众 => \"大众碧海湾漂流门票\公众,
\"大众count\"大众 => \"大众40\"大众,
),
5 => array(
\"大众id\公众 => 5,
\"大众name\"大众 => \公众南昆山门票\"大众,
\"大众count\"大众 => \"大众40\"大众,
),
6 => array(
\"大众id\公众 => 6,
\"大众name\"大众 => \"大众云顶温泉精美礼品\"大众,
\"大众count\公众 => \"大众40\"大众,
),
);
源码来源：https://gitee.com/lanrenzhijia/codes/d342lk1yw5nm8x09euqag50
