trencher/php-project-lvl2

Consider simplifying this complex logical expression.

Open

    if (array_key_exists($key, $firstFile) && (array_key_exists($key, $secondFile)) && is_array($firstFile[$key])) {
            $acc[] = makeNode($key, null, "nested", diff($firstFile[$key], $secondFile[$key]));
      return $acc;
    } elseif (array_key_exists($key, $firstFile) && !array_key_exists($key, $secondFile)) {
      $acc[] = makeNode($key, $firstFile[$key], "removed");