PHP偏移unix时间戳 [英] PHP Offsetting unix timestamp

问题描述

我在 PHP 中有一个unix时间戳记：

  $ timestamp = 1346300336; 
  

然后我有一个要申请的时区的偏移量。基本上，我想应用偏移量并返回一个新的unix时间戳。偏移量遵循此格式，不幸的是由于与其他代码的兼容性而不能更改：

  $ offset_example_1 =-07 ：00; 
 $ offset_example_2 =+00：00; 
 $ offset_example_3 =+07：00; 
  

我试过：

  $ new_timestamp = strtotime（$ timestamp。$ offset_example_1）; 
  

但是这样做的确不是工作不幸:(任何其他想法？ / p>

编辑

测试后，我很惊讶，但即使这样也不工作：

  strtotime（1346300336 -7小时）
  

返回false。

让我们来看看有点不一样，上面的偏移示例的最好的方法是什么，到几秒钟，然后我可以简单地做 $ timestamp + $ timezone_offset_seconds 。

解决方案

您应该将原始时间戳作为第二个参数传递给 strtotime 。

  $ new_timestamp = strtotime（ -  7小时，$ timestamp）; 
  

I have a unix timestamp in PHP:

$timestamp = 1346300336;

Then I have an offset for timezones which I want to apply. Basically, I want to apply the offset and return a new unix timestamp. The offset follows this format, and unfortunately can't be changed due to compatibility with other code:

$offset_example_1 = "-07:00";
$offset_example_2 = "+00:00";
$offset_example_3 = "+07:00";

I tried:

$new_timestamp = strtotime($timestamp . " " . $offset_example_1);

But this does not work unfortunately :(. Any other ideas?

EDIT

After testing, I super surprised, but even this doesn't work:

strtotime("1346300336 -7 hours")

Returns false.

Let's approach this a bit different, what is the best way to transform the offset examples above, into seconds? Then I can simply just do $timestamp + $timezone_offset_seconds.

解决方案

You should pass the original timestamp as the second parameter to strtotime.

$new_timestamp = strtotime("-7 hours", $timestamp);

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