我有一个值序列数组，如：
$series = [100,300,500,800,1000,3000,5000,10000,15000,20000];
从DB获得的另一个价值：
$point = $data[‘earned_point’];
我需要系列赛中最高的一场。例如，我从db（1500）中得到一个值，该值在该系列中的最高匹配是1000，所以我需要得到$series[4]并使其成为
$reward = $series[4] * 0.1;
我将在一个循环中运行它，以便对从DB获得的所有值执行此操作。
我发布了替代代码作为可接受的答案，如果您使用的是大数组，则正确答案可能非常低效。
<?php
function computeReward($series, $point, $percent = 0.1){
arsort($series); // sort the series in reverse so we can pass any array and the highest number will be the first because we are looking for a number lower or equal to our point
foreach($series as $min_point){
if($min_point <= $point){
return $min_point * $percent; // return the min_point * the percentage, this stops the loop there for being more efficient
}
}
}
$series = [100,300,500,800,1000,3000,5000,10000,15000,20000];
$point = $data['earned_point'];
$reward = computeReward($series, $point);
?>
您的意思是想得到哪个最高的$series项等于或小于$point？
<?php
$series = [100,300,500,800,1000,3000,5000,10000,15000,20000];
$point = $data['earned_point'];
foreach ($series as $min_point) {
if ($point >= $min_point) {
$matched_min_point = $min_point;
}
}
$reward = $matched_min_point*0.1;
让我知道这是否适用于