php strtotime('today') 返回不正确的时间？
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strtotime('today') returning incorrect time?
提问by Johnathan Au
I am trying to create a select list starting from the current date of the user. I want it so that it is set to midnight in unix timestamp format.
我正在尝试从用户的当前日期开始创建一个选择列表。我希望它以 unix 时间戳格式设置为午夜。
This is all I'm doing:
这就是我正在做的一切：
$today = strtotime('today');
echo $today;
This is my result:
这是我的结果：
1333144800
which is: Fri, 30 Mar 2012 22:00:00 GMT according to Epoch Converter (incorrect by a couple hours.)
即：根据 Epoch Converter，格林威治标准时间 2012 年 3 月 30 日星期五 22:00:00（错误几个小时。）
回答by Niko
If you want strtotime() to return a timestamp relative to UTC (00:00:00 UTC instead of e.g. 00:00:00 UTC+2, if your system is set to a timezone with an offset of 2 hours against UTC/GMT), you need to specify that:
如果您希望 strtotime() 返回相对于 UTC 的时间戳（00:00:00 UTC 而不是 00:00:00 UTC+2，如果您的系统设置为相对于 UTC/GMT 偏移 2 小时的时区)，您需要指定：
$today = strtotime('today UTC');
回答by Xfile
GMT (+0) time
GMT (+0) 时间
echo $today = strtotime('today GMT');
echo "<br>" . $today = date("d-m-Y H:i:s", $today);
We expect that your server runs at GMT - that is the best (for maneuvering with time displays later). If not, you MUST adjust php.ini set this "date.timezone = GMT".
我们希望您的服务器在格林威治标准时间运行 - 这是最好的（用于稍后显示时间）。如果没有，你必须调整 php.ini 设置这个“date.timezone = GMT”。
When you get that done, you will see 00:00 with my codes.
完成后，您将看到带有我的代码的 00:00。
Then, you must develop function (ie DisplayDate()) in your script to display dates of your website correctly if
然后，您必须在脚本中开发函数（即 DisplayDate()）以正确显示您网站的日期，如果
- youre not in GMT area
- or/and if you want for your users to see times in their timezone with timezone selection for example.
- 你不在格林威治标准时间区域
- 或/和如果您希望您的用户通过时区选择查看时区中的时间。
DisplayDate() should include support for daylight changes also (0, or +1 hour / summer and winter time).
DisplayDate() 还应包括对日光变化的支持（0 或 +1 小时/夏令时和冬令时）。
回答by Goldentoa11
strtotime( $time )
is designed to return a unix timetamp, meaning, it will return the number of seconds since jan 1, 1970. http://www.php.net/manual/en/function.strtotime.php
旨在返回 unix 时间戳，这意味着它将返回自 1970 年 1 月 1 日以来的秒数。http://www.php.net/manual/en/function.strtotime.php
To get around this, use something like:
要解决此问题，请使用以下内容：
$today = date("d/m/Y H:i:s", strtotime('today'));
echo $today;
回答by hohner
You might have to specifically set the time as well as the day:
您可能需要专门设置时间和日期：
$today_midnight = strtotime('today UTC 00:00');
回答by PachinSV
You should check the timezone configuration in your php.ini file. In my case (I live in El Salvador) I had to change it like this:
您应该检查 php.ini 文件中的时区配置。就我而言（我住在萨尔瓦多）我不得不像这样改变它：
date.timezone = America/El_Salvador
