switch-examples.php

switch (n)
{
  case 0:
    echo "You typed zero.";
  case 1:
  case 4:
  case 9:
    echo "n is a perfect square.";
  case 2:
    echo "n is an even number.";
    fallthru;
  case 3:
  case 5:
  case 7:
    echo "n is a prime number.";
    fallthru;
  case 6:
  case 8:
    echo "n is an even number.";
  default:
    echo "Only single-digit numbers are allowed.";
}