/**
* Jalali::dayOfWeek()
*
* returns weekday of the specified day of the year
*
* @param int $yearValue
* @param boolean $calendarType
* @access protected
* @return mixed
*/
protected static function dayOfWeek($yearValue, $dayOfYear = 0)
{
if (!Jalali::filterErrors($yearValue, 'y')) {
return;
}
$Rasad = Jalali::calcRasad($yearValue);
$count2820 = floor($Rasad / 2820);
$mod2820 = $Rasad % 2820;
$count128 = floor($mod2820 / 128);
$mod128 = $mod2820 % 128;
$leapCount = 0;
while ($mod128 > Jalali::$Khayamii[$leapCount]) {
$leapCount++;
}
$yearStartDay = ($count2820 + 1) * 3 + $count128 * 5 + $mod128 + $leapCount;
if ($dayOfYear > 0) {
$dayOfYear--;
}
return ($yearStartDay + $dayOfYear) % 7;
}
