mktime

Why does

date('d',mktime(0,0,0,0,0,0,0));

give 31?

 

well it returns blank for me

anyway, note that for mktime "Date with year, month and day equal to zero is considered illegal"

 

Apparently it returns -1 in versions of PHP previous to 5.1 so perhaps you are using the most recent version of PHP

I'm trying to do a calculation to find out how many days are between 2 different dates and it works up until there are no more days left because my mktime function is of course trying to work out mktime(0,0,0,0,0,0);

Thanks for your pointers.

 

yes, i'm using the latest version of php always like to use the latest tools...

for days difference, try this

$days = (strtotime($date1) - strtotime(date($date2))) / (60 * 60 * 24);
print $days;

Code (markup):

 

Thanks!