Definition and Usage
定义和用法
The gmstrftime() function formats a GMT/UTC time or date according to locale settings.
gmstrftime()函数的作用是:根据区域设置格式化GMT/UTC时间/日期。
Syntax
语法
gmstrftime(format,timestamp) |
Parameter参数 | Description描述 |
format | Required. Specifies how to return the result: 必要参数。指定了返回结果的方法: - %a - abbreviated weekday name
%a – 缩略的表示星期几的名称 - %A - full weekday name
%A – 表示星期几的全称 - %b - abbreviated month name
%b – 月份简称 - %B - full month name
%B – 月份全称 - %c - preferred date and time representation
%c – 首选的日期和时间表示法 - %C - century number (the year divided by 100, range 00 to 99)
%C – 表示世纪的数字(年份除以100,范围从00到99) - %d - day of the month (01 to 31)
%d – 一个月包含的天数(从01到31) - %D - same as %m/%d/%y
%D – 时间格式,与%m/%d/%y表示法相同 - %e - day of the month (1 to 31)
%e - 一个月包含的天数,数字前不包括0(从1到31) - %g - like %G, but without the century
%g – 与%G雷同,但除去“世纪[century]” - %G - 4-digit year corresponding to the ISO week number (see %V).
%G – 与ISO星期数相对应的4位数年份(见%V) - %h - same as %b
%h – 与%b相同 - %H - hour, using a 24-hour clock (00 to 23)
%H – 小时,使用24小时时钟(00到23) - %I - hour, using a 12-hour clock (01 to 12)
%I – 小时,使用12小时时钟(01到12) - %j - day of the year (001 to 366)
%j – 一年的天数(001到366) - %m - month (01 to 12)
%m – 月份(01到12) - %M - minute
%M – 分钟 - %n - newline character
%n – 换行符 - %p - either am or pm according to the given time value
%p – 与给定的时间值相对应的am或pm - %r - time in a.m. and p.m. notation
%r -用am或pm表示给定的时间 - %R - time in 24 hour notation
%R – 用24小时制表示的时间 - %S - second
%S – 秒 - %t - tab character
%t – tab键制表符 - %T - current time, equal to %H:%M:%S
%T – 当前时间,与“%H:%M:%S”组合相同 - %u - weekday as a number (1 to 7), Monday=1. Warning: In Sun Solaris Sunday=1
%u – 以数字形式表示星期几(1到7),Monday=1。提醒:在SUN Sloaris系统中,Sunday=1 - %U - week number of the current year, starting with the first Sunday as the first day of the first week
%U – 当今年份中包含的周的总数,以第一个星期日作为第一周的第一天 - %V - The ISO 8601 week number of the current year (01 to 53), where week 1 is the first week that has at least 4 days in the current year, and with Monday as the first day of the week
%V – 在当今年份中所包含的ISO 8601格式下的周的总数(01到53),week 1表示第一周,以周一作为每周的第一天 - %W - week number of the current year, starting with the first Monday as the first day of the first week
%W – 当前年份中包含的周的总数,以第一个星期一作为第一周的第一天 - %w - day of the week as a decimal, Sunday=0
%w – 以数字的形式表示星期几,Sunday[星期日]=0 - %x - preferred date representation without the time
%x – 选取除去时间[time]的日期[date] - %X - preferred time representation without the date
%X –选取除去日期[date]的时间[time] - %y - year without a century (range 00 to 99)
%y – 只显示包含年份的数字,不包含表示世纪的数字(00-99) - %Y - year including the century
%Y – 显示包含世纪数字的年份(即:四位数字表示的年份,如:1999,2001等) - %Z or %z - time zone or name or abbreviation
%Z或%z – 前者为时区名称;后者为时区名称的简称 - %% - a literal % character
%% - 输出“%”字符串 |
timestamp | Optional. Specifies the date or time to be formatted. If no timestamp is specified, it uses the current GMT time. 可选参数。指定日期或时间的格式。如果没有指定时间戳[timestamp],那么将默认使用当前的GMT时间。 |
Tips and Notes
提示
Tip: This function is identical to strftime() except that the time returned is Greenwich Mean Time (GMT).
提示:gmstrftime()函数与strftime()函数用法大致相同,唯一的不同点是gmstrftime()函数返回的格林威治时间(GMT:Greenwich Mean Time)。
Example
案例
Example of both strftime() and gmstrftime():
strftime() 和 gmstrftime()的案例:
<?php
echo(strftime("%b %d %Y %X", mktime(20,0,0,12,31,98))."<br />");
echo(gmstrftime("%b %d %Y %X", mktime(20,0,0,12,31,98))."<br />");
//Print the current date, time, and time zone.
echo(gmstrftime("It is %a on %b %d, %Y, %X time zone: %Z",time()));
?> |
The output of the code above could be:
上述代码将输出下面的结果:
Dec 31 1998 20:00:00
Dec 31 1998 19:00:00
It is Wed on Jan 25, 2006, 11:32:10 time zone: W. Europe Standard Time |