百科狗-知识改变命运!
--

timezone_name_from_abbr() - php 日期时间函数

百变鹏仔1年前 (2023-11-21)阅读数 20#技术干货
文章标签别名

timezone_name_from_abbr()

(PHP 5 >= 5.1.3, PHP 7)

Returns the timezone name from abbreviation

说明

timezone_name_from_abbr(string $abbr[,int $gmtOffset=-1[,int $isdst=-1]]): string

参数

$abbr

Time zone abbreviation.

$gmtOffset

Offset from GMT in seconds. Defaults to -1 which means that first found time zone corresponding to$abbris returned. Otherwise exact offset is searched and only if not found then the first time zone with any offset is returned.

$isdst

timezone_name_from_abbr() - php 日期时间函数

Daylight saving time indicator. Defaults to -1, which means that whether the time zone has daylight saving or not is not taken into consideration when searching. If this is set to 1, then the$gmtOffsetis assumed to be an offset with daylight saving in effect; if 0,then$gmtOffsetis assumed to be an offset without daylight saving in effect.If$abbrdoesn't exist then the time zone is searched solely by the$gmtOffsetand$isdst.

返回值

Returns time zone name on success 或者在失败时返回FALSE.

范例

Atimezone_name_from_abbr()example

以上例程的输出类似于:

Europe/Berlin
Europe/Paris

参见

  • timezone_abbreviations_list() 别名 DateTimeZone::listAbbreviations
timezone_name_from_abbr() sometimes returns FALSE instead of an actual timezone: http://bugs.php.net/44780
It's possible to workaround it for some cases by getting the timezone name from timezone_abbreviations_list(). For example, if you have the GMT offset and want a timezone name: 
In some cases, timezone_name_from_abbr() may return a "historical" (i.e. deprecated) timezone identifier rather than the current standard one for a given location. For example:

This means that the returned timezone identifier is not guaranteed to be in the results of timezone_identifiers_list() unless you include the "backwards compatible" timezones. 
Another way to do this is to wrap the function in a class that extends the DateTimeZone class:
内容声明:本文中引用的各种信息及资料(包括但不限于文字、数据、图表及超链接等)均来源于该信息及资料的相关主体(包括但不限于公司、媒体、协会等机构)的官方网站或公开发表的信息。部分内容参考包括:(百度百科,百度知道,头条百科,中国民法典,刑法,牛津词典,新华词典,汉语词典,国家院校,科普平台)等数据,内容仅供参考使用,不准确地方联系删除处理!本站为非盈利性质站点,本着为中国教育事业出一份力,发布内容不收取任何费用也不接任何广告!)