"Prime",2=>"Seconde",3=>"Terze",4=>"Quarte",5=>"Quinte"];
foreach($years as $year=>$label){
echo "
- $label
";
$res = $conn->query("SELECT * FROM classes WHERE name LIKE '$year%' ORDER BY name");
while($row = $res->fetch_assoc()){
echo "- {$row['name']}
";
}
echo "
";
}
?>