I found this function in the list archives while searching on how to find
the number of a weekday (say, Tuesdays) between 2 dates..
function weekdaysBetween ($timestamp1, $timestamp2, $weekday)
{
return floor(intval(($timestamp2 - $timestamp1) / 86400) / 7)
+ ((date('w', $timestamp1) <= $weekday) ? 1 : 0);
}
Sometimes it works, but I've come across a date while testing this that
doesn't work, which makes me think there is some bug in the function that
I'm not seeing.
The 2 dates I am trying are:
01-04-2002
and
02-05-2002
There should be 5 Tuesdays:
01-08-2002
01-15-2002
01-22-2002
01-29-2002
02-05-2002
Yet the script only returns 4, leaving off 02-05-2002.
$nowdate = mktime(0, 0, 0, $STARTMONTH, $STARTDAY, $STARTYEAR);
$futuredate = mktime(0, 0, 0, $ENDMONTH, $ENDDAY, $ENDYEAR);
That's how I'm generating the time stamps to pass to the function, and I've
confirmed the dates I've entered are correct..
echo weekdaysBetween($nowdate, $futuredate, 2);
Returns 4 ..
can anyone assist?
Thanks,
Chad
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