确定经过时间 [英] Determining elapsed time

问题描述

我在PHP中有两次，我想确定经过的时间和分钟。例如：

8:30至10:00将为1:30

解决方案

解决方案可能是使用 strtotime

  $ first_str ='8:30'; 
 $ first_ts = strtotime（$ first_str）; 
 
 $ second_str = '10：00'; 
 $ second_ts = strtotime（$ second_str）; 
  

然后，做出区别：

  $ difference_seconds = abs（$ second_ts  -  $ first_ts）; 
  

在几分钟或几个小时内得到结果：

  $ difference_minutes = $ difference_seconds / 60; 
 $ difference_hours = $ difference_minutes / 60; 
 var_dump（$ difference_minutes，$ difference_hours）; 
  

你会得到：

  int 90 
 float 1.5 
  

找出是如何显示的; - ）

（再思考一点以后编辑）

显示差异的可能性可能是使用 date 函数;这样做应该做到：

  date_default_timezone_set（'UTC'）; 
 
 $ date = date（'H：i'，$ difference_seconds）; 
 var_dump（$ date）; 
  

我得到：

  string '01：30'（length = 5）
  

在我的系统上，我不得不使用 date_default_timezone_set 将时区设置为UTC - 否则，我得到02:30而不是01:30 - 可能是因为我在法国， FR是我系统的区域设置。

I have two times in PHP and I would like to determine the elapsed hours and minutes. For instance:

8:30 to 10:00 would be 1:30

解决方案

A solution might be to use strtotime to convert your dates/times to timestamps :

$first_str = '8:30';
$first_ts = strtotime($first_str);

$second_str = '10:00';
$second_ts = strtotime($second_str);

And, then, do the difference :

$difference_seconds = abs($second_ts - $first_ts);

And get the result in minutes or hours :

$difference_minutes = $difference_seconds / 60;
$difference_hours = $difference_minutes / 60;
var_dump($difference_minutes, $difference_hours);

You'll get :

int 90
float 1.5

What you now have to find out is how to display that ;-)

(edit after thinking a bit more)

A possibility to display the difference might be using the date function ; something like this should do :

date_default_timezone_set('UTC');

$date = date('H:i', $difference_seconds);
var_dump($date);

And I'm getting :

string '01:30' (length=5)

Note that, on my system, I had to use date_default_timezone_set to set the timezone to UTC -- else, I was getting "02:30", instead of "01:30" -- probably because I'm in France, and FR is the locale of my system...

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