yii\apidoc\commands\ApiController::findFiles PHP Method

    protected function findFiles($path, $except = [])
    {
        if (empty($except)) {
            $except = ['vendor/', 'tests/'];
        }
        $path = FileHelper::normalizePath($path);
        $options = ['filter' => function ($path) {
            if (is_file($path)) {
                $file = basename($path);
                if ($file[0] < 'A' || $file[0] > 'Z') {
                    return false;
                }
            }
            return null;
        }, 'only' => ['*.php'], 'except' => $except];
        return FileHelper::findFiles($path, $options);
    }