小数点后 PHP 的舍入时间

Question

$time_taken = 286;

$time_taken = $time_taken / 60;  //Converting to minutes

echo $time_taken;

Result: 4.7666666666667

但我需要：（期望：）

Result: 5.17 (Expected)

我试过了：round($time_taken,2);

但随后给出了结果：

Result: 4.77

Answer 1

你读错了结果。不过别担心。与时间打交道曾一度让大多数开发者发疯。这就像一个成年礼。

您得到 4.76 minutes，这 与 4 minutes and 76 seconds 不同。

是4 full minutes and 0.76 of a minute。

分解：

4 minutes = 240 sec
286 - 240 = 46

所以结果应该是 4 分 46 秒

要计算它，你可以这样做：

$total = 286;

// Floor the minutes so we only get full minutes
$mins  = floor($total / 60);

// Calculate how many secs are left
$secs  = $total % 60; // Thanks @RiggsFolly for the tip

echo "$mins minutes and $secs seconds";

Here's a demo

小数点后 PHP 的舍入时间

Rounding time in PHP after decimal

php

time

rounding