在 PHP 中减去时间

问题描述

我已经寻找了几个小时的答案，但我找不到.

我正在编写一个简单的脚本.用户设置他们的工作开始和结束时间.例如，有人从 8:00 到 16:00 工作.我怎样才能减去这个时间，看看这个人工作了多长时间?

我正在尝试 strtotime(); 但没有成功...

以下内容更好一些:

这会给你带来小时数的差异.

I have been looking for an answer for a few hours now, but I can't find one.

I'm writing a simple script. The user sets their work start and end time. So, for example, somebody is working from 8:00 to 16:00. How can I subtract this time to see how long the person has been working?

I was experimenting with strtotime(); but without success...

A bit nicer is the following:

$a = new DateTime('08:00');
$b = new DateTime('16:00');
$interval = $a->diff($b);

echo $interval->format("%H");

That will give you the difference in hours.

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