The date () function of PHP determines today's Day of the week

Day of the D month, 2 digits with leading zeros 01 to 31

The day of the D-week, the text says, 3 letters Mon to Sun

Day of the J month, without leading 1 to 31

L (Lowercase letter of "L") Day of the week, full text format Sunday to Saturday

N ISO-8601 format number represents the day of the week (PHP 5.1.0 new Plus) 1 (Monday) to 7 (Sunday)

S English suffix, 2 characters st,nd,rd or th, after the number of days per month. Can be used with J.

The day of the W week, the number represents 0 (Sunday) to 6 (Saturday)

Days 0 to 366 in the Z-year

The week of the year in W ISO-8601 format, starting from Monday (PHP 4.1.0 New) 42 (42nd Week of the year)

F month, full text format, such as January or March January to December

The month represented by the m number, with a leading 1 to 12

M three-letter abbreviation for month Jan to Dec

n number of months, without leading 1 to 12

t the number of days that a given month should be 28 to 31

L is a leap year if the leap year is 1, otherwise 0

o ISO-8601 format year number.

Y 4-digit year full representation for example: 1999 or 2003

Y 2 digits indicate the year for example: 99 or 03

A lowercase morning and afternoon value am or PM

A uppercase morning and afternoon value am or PM

B Swatch Internet Standard 000 to 999

G-hour, 12-hour format, without leading 1 to 12

G-hour, 24-hour format, without leading 00 to 23

H-hour, 12-hour format, with leading 1 to 12

H-hour, 24-hour format, with leading 000 to 23

I have a leading zero minute number 00 to 59>

S number of seconds, with leading 000 to 59>

E Time zone identifier (PHP 5.1.0 new) Example: Utc,gmt,atlantic/azores

I is daylight saving time if daylight saving time is 1, otherwise 0

O hours of difference from GMT for example: +0200

The difference between P and GMT (GMT) is separated by a colon between hours and minutes for example: +02:00

T the time zone where the machine is located

The number of seconds to offset the Z-time difference. The time zone offset in the west of UTC is always negative, and the east of UTC is positive. 43200 to 43200

Date in C ISO 8601 format (PHP 5 new Plus) 2004-02-12t15:19:21+00:00

R RFC 822 Format date For example: Thu, 2000 16:01:07 +0200

The number of seconds since the beginning of the Unix era (January 1 1970 00:00:00 GMT) time () get timestamp

PHP's date () function is very powerful, through the above parameters can achieve a lot of date operation, such as get the above I marked the red parameter description to achieve today is the day of the week operation!

Operation with "W" Parameter: PHP code is as follows:

  
 

   
  

  
<? PHP
   
  

  
$weekarray = Array ("Day","One","Two","three","four"  ,"Five","six");
   
  

  
Echo "Week" . $weekarray [date("W")];
   
  

  
?>
Source: >   
  
 

From for notes (Wiz)

The date () function of PHP determines today's Day of the week