PHP switch statement doesn't executes values using return

Question

Is it possible that PHP switch statement does not executes the switch desired result while using return?

What is the difference between these two statements?

$foo = '2';    
switch ($foo) {       
    case 1:
        echo 1;
        break;

    case 2:
        echo 2;
        break;
}

executes 2

versus

$foo = '2';    
switch ($foo) {       
    case 1:
        return 1;
        break;

    case 2:
        return 2;
        break;
}

Doesnt seem to work.

is there a way to make it work?

Answer 1

The echo outputs the value that you pass (1, 2)
The return passes the value to the calling module.

The second block of code does work, but you don't see any visual output.