switch-is-broken.php

<?php

/**
 * # EXPECTED
 *   $ php -f ./switch-is-broken.php
 *   the word alpha
 *   the word beta
 *   the default
 *   the default
 *   the number one
 *
 * # ACTUAL
 *   $ php -f ./switch-is-broken.php
 *   the word alpha
 *   the word beta
 *   the word alpha
 *   the default
 *   the number one
 */

main();

function main() {
  test_switch('alpha');
  test_switch('beta');
  // This matches the first condition for some reason. :(
  test_switch(0);
  test_switch(NULL);
  test_switch(1);
}

function test_switch($var) {
  switch ($var) {
    case 'alpha':
      echo 'the word alpha' . PHP_EOL;
      break;

    case 'beta':
      echo 'the word beta' . PHP_EOL;
      break;

    case 1:
      echo 'the number one' . PHP_EOL;
      break;

    default:
      echo 'the default' . PHP_EOL;
      break;
  }
}