Weekdays_tween

Returns the number of week-days between two valid dates.

function weekdays_tween($sdate,$edate) {
	$from_date = strtotime($sdate);
	$to_date = strtotime($edate);
	$days = 0;
	while ($from_date < $to_date) {
		$from_date = strtotime('+1 day', $from_date);
		$day = date('D', $from_date);
		if ($day == 'Sun') {
			continue;
		}
		++$days;
	}
	return $days;
}