Re: Alternate 2 schedules...

>I' m searching a way to programmatically alternate 2 schedules each sunday at 00:00. >Schedule1 start on first sunday and seven days later, schedule2 replace schedule1,and seven >days later, schedule1 replace schedule2 etc... The *easiest* thing to do would be to run a cron job every Sunday at midnight to flip something... But, assuming you want to avoid that: <?php $now = time() $weeknumber = $now % 52; #So now I know which week of the year it is... #How do I know if it's "before" or "after" Sunday? #Easy: $dayofweek = date("w", $now); #So, now $dayofweek is either 0, for Sunday, or 1 for Monday, or... #Problem, how to mix and match $weeknumber and $dayofweek to "change" on Sundays #Well, did this year start on a Wednesday, or what? $newyeardayofweek = date("w", mktime(0, 0, 0, 1, 1, date("Y", $now))); #This formula makes a lot more sense if you look at sample data: /* Format is: The Day of week (Sun-Sat) The day of the year 1-365 $weeknumber/$dayofweek The right-hand column is 1/2 based on which schedule we want. | | v Thu Fri Sat 1 2 3 1 0/4 0/5 0/6 Sun Mon Tue Wed Thu Fri Sat 4 5 6 7 8 9 10 2 0/0 0/1 0/2 0/3 1/4 1/5 1/6 Sun Mon Tue Wed Thu Fri Sat 11 12 13 14 15 16 17 1 1/0 1/1 1/2 1/3 2/4 2/5 2/6 Sun Mon Tue Wed Thu Fri Sat 18 19 20 21 22 23 24 2 2/0 2/1 2/2 2/3 3/4 3/5 3/6 */ #So, the "trick" is to switch on whether our day of the week is before or after #the day that started the year off. if ((($weeknumber % 2) && ($dayofweek >= $newyeardayofweek)) || (!($weeknumber % 2) && ($dayofweek < $newyeardayofweek))){ include 'schedule1'; } else{ include 'schedule2'; } ?> Somebody else probably has a one-line answer. Oh well. :-) -- Visit the Zend Store at http://www.zend.com/store/ Wanna help me out? Like Music? Buy a CD: http://l-i-e.com/artists.htm Volunteer a little time: http://chatmusic.com/volunteer.htm