switch statement without break

Question

How come a case option in a switch statement that does not contain a break automatically forwards to a next case without check?

try {
    switch($param) {
          


        

Answer 1

In PHP 8 we have match, similar with switch expression but is significantly shorter:

• it doesn't require a break statement
• it can combine different arms into one using a comma
• it returns a value, so you only have to assign value once

An example:

$message = match ($statusCode) {
    200, 300 => null,
    400 => 'not found',
    500 => 'server error',
    default => 'unknown status code',
};

Here's its switch equivalent:

switch ($statusCode) {
    case 200:
    case 300:
        $message = null;
        break;
    case 400:
        $message = 'not found';
        break;
    case 500:
        $message = 'server error';
        break;
    default:
        $message = 'unknown status code';
        break;
}

reference : https://stitcher.io/blog/php-8-match-or-switch