$month = date('F');
$day = date('j'); 

function season($month, $day){
	switch ($month) {
		case 'December':
			// fall or winter
			if ($day <= '22'){
				$season = 'fall';
			} else {
				$season = 'winter';
			}
			return $season;
			break;
		case 'January':
			$season == 'winter';
			return $season;
			break;
		case 'Feburary':
			$season == 'winter';
			return $season;
			break;
		case 'March':
			// winter or spring
			if ($day <= '21') {
				$season = 'winter';
			} else { 
				$season = 'spring';
			}
			return $season;
			break;
		case 'April':
			$season == 'spring';
			return $season;
			break;
		case 'May':
			$season == 'spring';
			return $season;
			break;
		case 'June':
			// spring or summer
			if ($day <= '20'){
				$season = 'spring';
			} else {
				$season = 'summer';
			}
			return $season;
			break;
		case 'July':
			$season == 'summer';
			return $season;
			break;
		case 'August':
			$season == 'summer';
			return $season;
			break;
		case 'September':
			// summer or fall
			if ($day <= '22'){
				$season = 'summer';
			} else {
				$season = 'fall';
			}
			return $season;
			break;
		case 'October':
			$season == 'fall';
			return $season;
			break;
		case 'November':
			$season == 'fall';
			return $season;
			break;	
		}
return $season;			
}

$folder = 'rotator/'. season($month, $day); .'/';