实战模拟│揭秘为啥年会你抽不到特等奖

<?php$prize = ['60寸大彩电', 'iphone13', '戴森吸尘器', '索尼微单', 'VR眼镜', '谢谢参与'];
// 当有用户进来抽奖，进行随机抽奖shuffle($prize);
// 抽奖结果print_r($prize[0]);

<?php$prize = [    ['name' => '60寸大彩电', 'chance' => 100],    ['name' => 'iphone13', 'chance' => 900],    ['name' => '戴森吸尘器', 'chance' => 1000],    ['name' => '索尼微单', 'chance' => 2000],    ['name' => 'VR眼镜', 'chance' => 3000],    ['name' => '谢谢参与', 'chance' => 3000]];
// 概率重组$chance = 0;foreach ($prize as &$item) {    $chance += $item['chance'];    $item['chance'] = $chance;}
// 随机抽奖$rand = mt_rand(1, 10000);
$result = [];foreach ($prize as $_k => $_v) {    if ($_k == 0) {        if ($rand > 0 && $rand <= $_v['chance']) {            $result = $_v;            break;        }    } else {        if ($rand > $prize[$_k - 1]['chance'] && $rand <= $_v['chance']) {            $result = $_v;            break;        }    }}
// 抽奖结果echo json_encode(compact('rand', 'result'));

<?php$prize = [    ['name' => '60寸大彩电', 'winners' => ['张三']],    ['name' => 'iphone13', 'winners' => ['李四', '王五']],    ['name' => '戴森吸尘器', 'winners' => ['亮仔']],    ['name' => '索尼微单', 'winners' => ['李六']],    ['name' => 'VR眼镜', 'winners' => ['小明']]];
// 开始抽奖，这里假如亮仔过来抽// 这里的用户也可以是用户唯一标识$user = '亮仔';
$result = '谢谢参与';foreach ($prize as $item) {    if (in_array($user, $item['winners'])) {        $result = $item['name'];        break;    }}
print_r('获得的奖品：' . $result);