gmstrftime

(PHP 4, PHP 5, PHP 7, PHP 8)

gmstrftime — 根据区域设置格式化 GMT/UTC 时间／日期

说明

gmstrftime ( string $format , int $timestamp = ? ) : string

和 strftime() 的行为相同，只除了返回时间是格林威治标准时（GMT）。例如，当在东部标准时（EST，GMT -500）运行时，下面第一行显示"Dec 31 1998 20:00:00"，而第二行显示"Jan 01 1999 01:00:00"。

Example #1 gmstrftime() 例子


<?php
setlocale(LC_TIME, 'en_US');
echo strftime("%b %d %Y %H:%M:%S", mktime (20,0,0,12,31,98))."\n";
echo gmstrftime("%b %d %Y %H:%M:%S", mktime (20,0,0,12,31,98))."\n";
?>

参见 strftime()。

User Contributed Notes

pvdster at hotmail dot com 22-Mar-2005 07:50


If you want the dutch time on your pages and you are hosted on a server in the USA you can easily change it this way:





<?php


setlocale(LC_TIME, 'nl_NL');


$tgl = gmstrftime("%d %B %Y - %H:%M uur",time()+3600);


?>





Then use $tgl to display the right time.


Note the +3600 is a day light savings time correction.


The result: 22 maart 2005 - 16:39 uur





First I used the normal date function and this was the previous result: March 22, 2005 - 04:28 AM





I needed it for a dutch guestbook.





I'm new to PHP and it took me a while to find it out and maybe it's of no use for experienced PHP programmers but I thought people can always ignore my post :)

peter dot albertsson at spray dot se 05-Feb-2005 07:27


gmstrftime() should not be used to generate a RFC 850 date for use in HTTP headers, since its output is affected by setlocale().



Use gmdate instead:



gmdate('D, d M Y H:i:s') . ' GMT';

yellow dot snow at huskies dot com 10-Oct-2004 09:15


HTTP 1.1 (RFC 2068) requires an RFC 1123 date with a four digit year, so the correct format to use for a Last-modified header would look something like this:



<?php

header("Last-modified: " . 

gmstrftime("%a, %d %b %Y %T %Z",getlastmod()));

?>

neo at gothic-chat d0t de 24-Jun-2004 11:27


To get a RFC 850 date (used in HTTP) of the current time:



gmstrftime ("%A %d-%b-%y %T %Z", time ());



This will get for example:

Friday 25-Jun-04 03:30:23 GMT



Please note that times in HTTP-headers _must_ be GMT, so use gmstrftime() instead of strftime().