$epoch_1 = mktime(19,32,56,5,10,1965);
$epoch_2 = mktime(4,29,11,11,20,1962);
$diff_seconds = $epoch_1 - $epoch_2;
$diff_weeks = floor($diff_seconds/604800);
$diff_seconds -= $diff_weeks * 604800;
$diff_days = floor($diff_seconds/86400);
$diff_seconds -= $diff_days * 86400;
$diff_hours = floor($diff_seconds/3600);
$diff_seconds -= $diff_hours * 3600;
$diff_minutes = floor($diff_seconds/60);
$diff_seconds -= $diff_minutes * 60;
print "The two dates have $diff_weeks weeks, $diff_days days, ";
print "$diff_hours hours, $diff_minutes minutes, and $diff_seconds ";
print "seconds elapsed between them.";
?>