function getGoodTime($timestamp){
	$day = date("d",$timestamp);
	$month = date("m",$timestamp);
	$year = date("Y",$timestamp);
		
	$actual_day = date("d");
	$actual_month = date("m");
	$actual_year = date("Y");
		
	if($day == $actual_day && $month == $actual_month  && $year == $actual_year){
		$first = "Aujourd'hui, ";
	}else if($day == ($actual_day - 1) && $month == $actual_month  && $year == $actual_year){
		$first = "Hier, ";
	}else{
		$first = "Le" . $day . "/" . $month . "/" . $year . ", ";
	}
		
	return ($first . date("H",$timestamp) . "h" . date("i",$timestamp));
}

function verif_jours_mois($mois, $jour, $annee){
	if($annee < 0 || $jour < 0 || $mois < 0){
		return false;
	}

	if($mois > 12){
		return false;
	}
	
	switch ($mois){
		case 1:
		case 3:
		case 5:
		case 7:
		case 8:
		case 10:
		case 12:
			if($jour >31){
				return false;
			}

			break;
		case 4:
		case 6:
		case 9:
		case 11:
			if($jour >30){
				return false;
			}
			break;
		case 2:
			if (($annee % 4) != 0 AND ($annee % 100) != 0) {
				if($jour >28){
					return false;
				}
			} 
			else {
				if($jour >29){
					return false;
				}
			}
			break;
	}
	
	return true;
}