Get month date based on week

Get month date based on week

/**
 * Get the month date based on the week
 * @param int $weenNum Week 0-6
 * @return array $days Return the date array
*/
 public function getDateByWeek($weekNum,$month,$year)
 {
 $totalDays=date('t',strtotime(mktime(0,0,0,$month ,1,$year)));//Calculate the total number of days in the month
 $days=array();
 for($day=1;$day<=$totalDays;$day++)
 {
 $mkTime=mktime(0 ,0,0,$month,$day,$year);
 if(date('w',$mkTime)==$weekNum){
 $days[]=date('Y-m-d',$mkTime) ;
 }
 }
 return $days;
 }