No Switch With Multiple Default

Switch statement may have several cases and one default statement, which will act as a catch-all for all unspecified cases. PHP compiles switches structures with several default cases, though only the first one is actually executed.

All extra default cases are considered dead code, as they won't be executed.

Rule Details

This rule require that every switch statement has at least a default case.

<?php
switch ($foo) {
    case 'a':
        doA();
        break 1;

    default:
        doDefault();
        break 1;

    case 'b':
        doB();
        break 1;

    default:
        doDefault();
        break 1;
}
?>

The following patterns are considered warnings:

<?php
switch (foo) {
    case 'a':
        doSomething();
        break 1;

    case 'b':
        doSomething();
        break 1;

    default:
        doDefault();
        break 1;
}
?>