How to find last sunday (date) using perl? Post: 302170723

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Top Forums UNIX for Dummies Questions & Answers How to find last sunday (date) using perl? Post 302170723 by joeyg on Tuesday 26th of February 2008 02:39:18 PM

02-26-2008

Registered User

One solution

Here is the script
($dow is the variable for day-of-week, stored at location [6] from localtime)

Code:

> cat sunday
#!/usr/bin/perl

# start of Perl
# Program to find previous Sunday date
#
# use strict;

 $today = date(time);
 $weekend = date2(time);

# start of subroutine date MM-DD-YYYY
sub date 
{
     my($time) = @_;     # incoming parameters

     @when = localtime($time);
     $dow=$when[6];
     $when[5]+=1900;
     $when[4]++;
     $date = $when[4] . "-" . $when[3] . "-" . $when[5];

     return $date;
}

# start of subroutine date2 MM-DD-YYYY
sub date2
{
     my($time) = @_;     # incoming parameters

     $offset = 0;
     $offset = 60*60*24*$dow;
     @when = localtime($time - $offset);
     $when[5]+=1900;
     $when[4]++;
     $date = $when[4] . "-" . $when[3] . "-" . $when[5];

     return $date;
}

print "$today \n";
print "$dow \n";
print "$weekend \n";

Here is the output

Code:

> sunday
2-26-2008 
2 
2-24-2008

joeyg

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LEARN ABOUT PHP

cal_from_jd

CAL_FROM_JD(3)								 1							    CAL_FROM_JD(3)

cal_from_jd - Converts from Julian Day Count to a supported calendar

SYNOPSIS

       array cal_from_jd (int  $jd, int  $calendar)

DESCRIPTION

       cal_from_jd(3)  converts  the Julian day given in $jd into a date of the specified $calendar. Supported $calendar values are CAL_GREGORIAN,
       CAL_JULIAN, CAL_JEWISH and CAL_FRENCH.

PARAMETERS

	      o $jd
		- Julian day as integer

	      o $calendar
		- Calendar to convert to

RETURN VALUES

	Returns an array containing calendar information like month, day, year, day of week, abbreviated and full names of weekday and	month  and
       the date in string form "month/day/year".

EXAMPLES

       Example #1

	      cal_from_jd(3) example

	      <?php
	      $today = unixtojd(mktime(0, 0, 0, 8, 16, 2003));
	      print_r(cal_from_jd($today, CAL_GREGORIAN));
	      ?>

	      The above example will output:

	      Array
	      (
		  [date] => 8/16/2003
		  [month] => 8
		  [day] => 16
		  [year] => 2003
		  [dow] => 6
		  [abbrevdayname] => Sat
		  [dayname] => Saturday
		  [abbrevmonth] => Aug
		  [monthname] => August
	      )

SEE ALSO

       cal_to_jd(3), jdtofrench(3), jdtogregorian(3), jdtojewish(3), jdtojulian(3), jdtounix(3).

PHP Documentation Group 													    CAL_FROM_JD(3)