php中的平均时间，以小时，分钟和秒为单位 [英] Average time in hours,minutes and seconds in php

问题描述

我有一些总的小时数，需要计算平均值.例如，我的总小时值为2452:43:44(H:m:s)，总计数为15.我想以相同的格式获取平均时间，即hours:minutes:seconds.我们如何在PHP中做到这一点?

I have some total sums of hours and need to calculate the average. For example, my total hour value is 2452:43:44 (H:m:s) and the total count is 15. I would like to get the average time in the same format, that is hours:minutes:seconds. How can we do it in PHP ?

推荐答案

function average_time($total, $count, $rounding = 0) {
    $total = explode(":", strval($total));
    if (count($total) !== 3) return false;
    $sum = $total[0]*60*60 + $total[1]*60 + $total[2];
    $average = $sum/(float)$count;
    $hours = floor($average/3600);
    $minutes = floor(fmod($average,3600)/60);
    $seconds = number_format(fmod(fmod($average,3600),60),(int)$rounding);
    return $hours.":".$minutes.":".$seconds;
}
echo average_time("2452:43:44", 15); // prints "163:30:55"
echo average_time("2452:43:44", 15, 2); // prints "163:30:54.93"

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