Use laravel-mongodb outside laravel/lumen

[alex-arhat]

unfortunately use laravel-mongodb outside laravel require global function app() like this

function app() {
    return new class() {
        public function version() {
            return '5.3';
        }
    };
}

cause in .../jenssegers/mongodb/src/Jenssegers/Mongodb/Query/Builder function shouldUseCollections() is

    /**
     * Returns true if Laravel or Lumen >= 5.3
     *
     * @return bool
     */
    protected function shouldUseCollections()
    {
        if (function_exists('app')) {
            $version = app()->version();
            $version = filter_var(explode(')', $version)[0], FILTER_SANITIZE_NUMBER_FLOAT, FILTER_FLAG_ALLOW_FRACTION); // lumen
            return version_compare($version, '5.3', '>=');
        }
    }

if any other way to detect version of Illuminate\database that free app() function?

[wedgwood]

it seems the root cause of #955