Detailed explanation of date() function in php (1/2)_PHP tutorial

Now let’s introduce some usage and basic details about the date() function in php. You can refer to it.

date function usage

The code is as follows	Copy code
代码如下 复制代码 date($t); date($t);

The format is as follows:

Displayed format: year-month-day hour:minute:second
Relevant time parameters:
a - "am" or "pm"
A - "AM" or "PM"
d - day, two digits, if there are less than two digits, add zero in front; for example: "01" to "31"
D - day of the week, three English letters; such as: "Fri"
F - month, full English name; such as: "January"
h - hour in 12-hour format; e.g.: "01" to "12"
H - hour in 24-hour format; e.g.: "00" to "23"
g - hour in 12-hour format, no zeros are added if there are less than two digits; such as: "1" to 12"
G - hour in 24-hour format, no zeros are added if there are less than two digits; such as: "0" to "23"
i - minutes; e.g.: "00" to "59"
j - Day, two digits, if there are less than two digits, do not add zeros; for example: "1" to "31"
l - day of the week, full English name; such as: "Friday"
m - month, two digits, if there are less than two digits, add zeros in front; such as: "01" to "12"
n - month, two digits, if there are less than two digits, no zero will be added; for example: "1" to "12"
M - month, three English letters; such as: "Jan"
s - seconds; e.g.: "00" to "59"
S - add an English ordinal number at the end of the word, two English letters; such as: "th", "nd"
t - the number of days in the specified month; such as: "28" to "31"
U - Total seconds
w - Numeric day of the week, such as: "0" (Sunday) to "6" (Saturday)
Y - year, four digits; such as: "1999"
y - year, two digits; such as: "99"
z - day of the year; e.g.: "0" to "365"

You can freely set the displayed content, connection symbols or display position, such as date("m-d H") or date("dmY");?> and other date processing in php

Example

1, year-month-day

代码如下	复制代码
echo date('Y-m-j'); 2007-02-6 echo date('y-n-j'); 07-2-6

The code is as follows	Copy code
echo date('Y-m-j'); 2007-02-6  代码如下 复制代码   echo date('Y-M-j'); 2007-Feb-6   echo date('Y-m-d'); 2007-02-06 echo date('y-n-j');  代码如下 复制代码   echo date('Y-M-j'); 2007-Feb-6   echo date('Y-F-jS'); 2007-February-6th 07-2-6

Capital Y represents the four-digit year, while lowercase y represents the two-digit year; Lowercase m represents the number of the month (with a leading), while lowercase n represents the number of the month without the leading.

The code is as follows	Copy code
echo date('Y-M-j'); 2007-Feb-6 echo date('Y-m-d'); 2007-02-06

Capital M represents the 3 abbreviated characters of the month, while lowercase m represents the number of the month (with leading 0); There is no uppercase J, only lowercase j represents the day of the month, without the leading o; if a leading month is required, use a lowercase d.

The code is as follows	Copy code
echo date('Y-M-j'); 2007-Feb-6 echo date('Y-F-jS'); 2007-February-6th

Capital M represents the 3 abbreviated characters of the month, while capital F represents the full English version of the month. (no lowercase f)
Capital S represents the suffix of the date, such as "st", "nd", "rd" and "th", depending on the date number.

Summary:
You can use uppercase Y or lowercase y to indicate the year;
Months can be represented by uppercase F, uppercase M, lowercase m and lowercase n (two ways to represent characters and numbers respectively);
Lowercase d and lowercase j can be used to represent the day, and uppercase S represents the suffix of the date.

2. Hour:minute:second

By default, the time displayed by PHP interpretation is "Greenwich Mean Time", which is 8 hours different from our local time.

The code is as follows	Copy code
代码如下 复制代码   echo date('g:i:s a'); 5:56:57 am   echo date('h:i:s A'); 05:56:57 AM echo date('g:i:s a');  代码如下 复制代码   echo date('G:i:s'); 14:02:26 5:56:57 am echo date('h:i:s A'); 05:56:57 AM

A lowercase g indicates a 12-hour format without leading 0s, while a lowercase h indicates a 12-hour format with leading 0s. When using the 12-hour clock, it is necessary to indicate morning and afternoon. Lowercase a represents lowercase "am" and "pm", and uppercase A represents uppercase "AM" and "PM".

The code is as follows	Copy code
echo date('G:i:s'); 14:02:26

1 2 http://www.bkjia.com/PHPjc/628995.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/628995.htmlTechArticleNow we will introduce some usage and basic details about the date() function in php, you can refer to it. Date function usage code is as follows Copy code date($t); The format is as follows: Displayed format...