php 根据百分比统一决定N个用户按照百分比显示标签
时间: 2024-09-27 22:11:04 浏览: 20
在PHP中,为了根据百分比统一决定多个用户按照各自的权重显示标签,您可以创建一个函数,大致步骤如下:
1. 定义用户数组:包含用户ID和标签及对应的百分比权重,例如:
```php
$users = [
['id' => 1, 'tags' => ['tag1', 'tag2'], 'weights' => [50, 30]],
['id' => 2, 'tags' => ['tag3', 'tag4'], 'weights' => [70, 20]],
// 更多用户...
];
```
2. 创建辅助函数计算显示阈值:
```php
function getDisplayThreshold($totalWeights) {
return $totalWeights * 0.5; // 示例阈值为50%
}
```
3. 遍历用户并检查权重是否超过阈值:
```php
foreach ($users as $user) {
$totalWeight = array_sum($user['weights']);
$displayThreshold = getDisplayThreshold($totalWeight);
foreach ($user['tags'] as $index => $tag) {
if ($user['weights'][$index] > $displayThreshold) {
echo "User $user[id]: Tag '$tag' will be shown (weight: {$user['weights'][$index]}%)<br>";
} else {
echo "User $user[id]: Tag '$tag' will not be shown (weight: {$user['weights'][$index]}%)<br>";
}
}
}
```
4. 结果保存到数据库或直接输出到页面供前端展示。