Live: Php Date Time function date ()

Defragment: Php Date-time function date ()
Defragment: Php Date-time function date ()

1, year-month-day
echo Date (' y-m-j ');
2007-02-6

echo Date (' y-n-j ');
07-2-6

Uppercase Y represents the year four digits, while lowercase y represents the two digits of the year;
Lowercase m represents the number of months (with leading), while lowercase n indicates no leading month number.

echo Date (' y-m-j ');
2007-feb-6

echo Date (' y-m-d ');
2007-02-06

The uppercase M represents the 3 abbreviated characters of the month, while the lowercase m represents the number of the month (with leading 0);
J with no uppercase, only lowercase J indicates the date of the month, no leading o, or lowercase D if a month with a leading is required.

echo Date (' y-m-j ');
2007-feb-6

echo Date (' Y-f-js ');
2007-february-6th

Uppercase M represents the 3 abbreviated characters of the month, while uppercase F indicates the full written English of the month. (No lowercase f)
Uppercase S represents the suffix of the date, such as "St", "nd", "rd", and "th", depending on the date number.

Summary:
Indicates that the year can be in uppercase Y and lowercase y;
Indicates that the month can be in uppercase F, uppercase M, lowercase m, and lowercase n (two ways of representing characters and numbers, respectively);
Indicates that the day can be in lowercase d and lowercase j, and uppercase s represents the suffix of the date.


2, Hours: minutes: seconds

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

echo Date (' g:i:s a ');
5:56:57 am

echo Date (' H:i:s A ');
05:56:57 AM

The lowercase g represents a 12-hour system without a leading 0, while the lowercase h indicates a 12-hour system with a leading 0.
When using the 12-hour system, it is necessary to indicate that in the afternoon, lowercase a represents the lowercase "am" and "PM", and uppercase a denotes uppercase "AM" and "PM".

echo Date (' g:i:s ');
14:02:26

Uppercase G denotes 24-hour hours, but without preamble, and uppercase H for leading 24-hour hours

Summary:
The letter g means the hour without leading, the letter H denotes the hour with the preamble;
lowercase g, h for 12-hour system, uppercase G, h for 24-hour system.

3, Leap year, week, day

echo Date (' L ');
Leap Year: 0

echo Date (' L ');
Today is: Tuesday

echo Date (' D ');
Today is: Tue

Uppercase L Indicates whether this year is a leap years, a Boolean value that returns 1 for true, otherwise 0;
Lowercase L Indicates the day of the week in English full write (Tuesday);
Instead, use uppercase D to denote the 3-character abbreviation (TUE) of the day of the week.

echo Date (' W ');
Today's Week: 2

echo Date (' W ');
This week is the No. 06 week of the year.

The lowercase w represents the day of the week, and the numeric representation
Uppercase W indicates the number of weeks in a year

echo Date (' t ');
This month is 28 days

echo Date (' Z ');
Today is the 36th day of the year.

Lowercase t indicates the current month and how many days
Lowercase z indicates that today is the first day of the year

4, other

echo Date (' T ');
Utc
Capital T indicates the server's time zone setting

echo Date (' I ');
0
Uppercase I indicates whether the current is daylight saving time, returns 1 for true, otherwise 0

echo Date (' U ');
1170769424
The capital U represents the total number of seconds from January 1, 1970 to the present, which is the UNIX timestamp for the Unix time era.

echo Date (' C ');
2007-02-06t14:24:43+00:00
Lowercase C represents the ISO8601 date, the date format is YYYY-MM-DD, the letter T is used to interval the date and time, the time format is HH:MM:SS, and the time zone is represented by the deviation of Greenwich Mean Time (GMT).

echo Date (' R ');
Tue, Feb 2007 14:25:52 +0000
The lowercase R represents the RFC822 date.


The small date () function shows the powerful function and charm of PHP, and then compares the ASP, hehe.


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