Switch Case in PHP

<?php
    $i = 2;
    switch($i)
    {
        case 1 : 
                echo "I am Number one";
                break;
        case 2 :
                echo "I am Number two";
                break;
        case 3 :    
                echo "I am Number Three";
                break;    
        default :
                echo "I am Default "; 
    }
?>