[Natch]

The only way to do what you wanna do without having heaps of code is to do the following:

PHP Code:

switch ($magic) {
    case 1:
    case 2:
    case 3:
    ...
    case 18:
    case 19:
    case 20:
        $special = 1;
        break;
    case 21:
    case 22:
    case 23:
    case 24:
    case 25:
        $special = 3;
        break;
    default:
        $special = 0;
} 


The logic of it is that if if comes to case 15, and doesn't come to a break before the end of case 20 then it will apply the $special = 1 for all cases up to 20 - you will have to enter each case but not define the value for each one.