php Smarty date_format [格式化时间日期]

　　$smarty = new Smarty;

　　$smarty->assign('yesterday', strtotime('-1 day'));

　　$smarty->display('index.tpl');

　　index.tpl:

　　{$smarty.now|date_format}

　　{$smarty.now|date_format:"%A, %B %e, %Y"}

　　{$smarty.now|date_format:"%H:%M:%S"}

　　{$yesterday|date_format}

　　{$yesterday|date_format:"%A, %B %e, %Y"}

　　{$yesterday|date_format:"%H:%M:%S"}

　　Feb 6, 2001

　　Tuesday, February 6, 2001

　　:33:00

　　Feb 5, 2001

　　Monday, February 5, 2001

　　:33:00

　　%a - abbreviated weekday name according to the current locale

　　（根据当地格式输出“星期”缩写格式）

　　%A - full weekday name according to the current locale

　　（根据当地格式输出“星期”全称格式）

　　%b - abbreviated month name according to the current locale

　　（根据当地格式输出“月”缩写格式）

　　%B - full month name according to the current locale

　　（根据当地格式输出“月”全称格式）

　　%c - preferred date and time representation for the current locale

　　%C - century number (the year divided by 100 and truncated to an integer, range 00 to 99)

　　%d - day of the month as a decimal number (range 00 to 31)

　　%D - same as %m/%d/%y

　　%e - day of the month as a decimal number, a single digit is preceded by a

　　space (range 1 to 31)

　　%g - Week-based year within century [00,99]

　　%G - Week-based year, including the century [0000,9999]

　　%h - same as %b

　　%H - hour as a decimal number using a 24-hour clock (range 00 to 23)

　　%I - hour as a decimal number using a 12-hour clock (range 01 to 12)

　　%j - day of the year as a decimal number (range 001 to 366)

　　%k - Hour (24-hour clock) single digits are preceded by a blank. (range 0 to 23)

　　%l - hour as a decimal number using a 12-hour clock, single digits preceeded by

　　a space (range 1 to 12)

　　%m - month as a decimal number (range 01 to 12)

　　%M - minute as a decimal number

　　%n - newline character

　　%p - either `am' or `pm' according to the given time value, or the corresponding strings for the current locale

　　%r - time in a.m. and p.m. notation

　　%R - time in 24 hour notation

　　%S - second as a decimal number

　　%t - tab character

　　%T - current time, equal to %H:%M:%S

　　%u - weekday as a decimal number [1,7], with 1 representing Monday

　　%U - week number of the current year as a decimal number, starting with the first Sunday as the first day of the first week

　　%V - The ISO 8601:1988 week number of the current year as a decimal number, range 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.

　　%w - day of the week as a decimal, Sunday being 0

　　%W - week number of the current year as a decimal number, starting with the first Monday as the first day of the first week

　　%x - preferred date representation for the current locale without the time

　　%X - preferred time representation for the current locale without the date

　　%y - year as a decimal number without a century (range 00 to 99)

　　%Y - year as a decimal number including the century

　　%Z - time zone or name or abbreviation

　　%% - a literal `%' character