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Posted by Robert Cummings on 10/20/27 11:24
On Fri, 2005-08-19 at 13:47, Philip Hallstrom wrote:
> >> All you need is the mktime() command.
> >>
> >> do something like:
> >> $futureDate = date("Y-m-d", mktime(0, 0, 0, $month, $today+
> >> $daysToAdd, $year));
> >>
> >> Jordan
> >>
> >>
> >> http://www.php.net/mktime
> >> mktime() is useful for doing date arithmetic and validation, as it
> >> will automatically calculate the correct value for out-of-range
> >> input. For example, each of the following lines produces the string
> >> "Jan-01-1998".
> >>
> >> <?php
> >> echo date("M-d-Y", mktime(0, 0, 0, 12, 32, 1997));
> >> echo date("M-d-Y", mktime(0, 0, 0, 13, 1, 1997));
> >> echo date("M-d-Y", mktime(0, 0, 0, 1, 1, 1998));
> >> echo date("M-d-Y", mktime(0, 0, 0, 1, 1, 98));
> >> ?>
> >
> > All fine and dandy... but he said WEEKDAYS, so adding 5 days to a given
> > day must non deduct from the 5 days when a weekend day is passed. This
> > kind of calculation is useful for banks and other businesses that only
> > process transactions on business days (which happen to be weekdays).
>
> Easy enough to change that date(...mktime(...)) command above to return
> the weekday and while the weekday is a weekend just add a day and repeat
Well of course.. I already posted a full solution last night :) One
using the technique you describe above, which is a bad solution since it
requires the loop to run once for each day to add, and then another
solution which divides the problem into two subproblems which is MUCH
faster on larger sets of days to add.
Cheers,
Rob.
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