我可以在PHP switch语句中使用逻辑“或”吗？

Question

Is it possible to use "or" or "and" in a switch case? Here's what I'm after:

case 4 || 5:
    echo "Hilo";
    break;

Answer 1

No, but you can do this:

case 4:
case 5:
       echo "Hilo";
       break;

See the PHP manual.

EDIT: About the AND case: switch only checks one variable, so this won't work, in this case you can do this:

switch ($a) {
  case 4:
    if ($b == 5) {
      echo "Hilo";
    }
    break;
  // Other cases here
}