php抽奖网站源码

<?php
function randomDraw($participants) {
    $winnerIndex = array_rand($participants);
    return $participants[$winnerIndex];
}

$participants = ['Alice', 'Bob', 'Charlie', 'David'];
$winner = randomDraw($participants);
echo "Winner is: " . $winner;
?>

<?php
function randomDraw($participants) {
    if (empty($participants)) {
        return null;
    }
    $winnerIndex = array_rand($participants);
    $winner = $participants[$winnerIndex];
    unset($participants[$winnerIndex]);
    return $winner;
}

$participants = ['Alice', 'Bob', 'Charlie', 'David'];
$winners = [];
for ($i = 0; $i < count($participants); $i++) {
    $winner = randomDraw($participants);
    $winners[] = $winner;
}
print_r($winners);
?>

<?php
// 假设这是参与抽奖的用户列表
$participants = ['Alice', 'Bob', 'Charlie', 'David'];

// 随机抽取一个中奖者
function drawWinner($participants) {
    $winnerIndex = array_rand($participants);
    return $participants[$winnerIndex];
}

// 执行抽奖
$winner = drawWinner($participants);

if ($winner) {
    echo "恭喜 " . $winner . " 获得奖品！";
} else {
    echo "抽奖活动已结束或没有参与者。";
}
?>