src/Http/Controllers/Backend/ToolsController.php
public function clearCache()
    {
        $exitCode = Artisan::call('cache:clear');
        $exitCode = Artisan::call('route:clear');
        $exitCode = Artisan::call('optimize');
        if ($exitCode === 0) {
            Session::put('_cache-clear', trans('canvas::messages.cache_clear_success'));
        } else {
            Session::put('_cache-clear', trans('canvas::messages.cache_clear_error'));
        }

        return redirect()->route('canvas.admin.tools');
    }
public function clearCache()
    {
        $exitCode = Artisan::call('cache:clear');
        $exitCode = Artisan::call('route:clear');
        $exitCode = Artisan::call('optimize');
        if ($exitCode === 0) {
            Session::put('_cache-clear', trans('canvas::messages.cache_clear_success'));
        } else {
            Session::put('_cache-clear', trans('canvas::messages.cache_clear_error'));
        }

        return redirect()->route('canvas.admin.tools');
    }
Manually Flush the Application Cache.

@return \Illuminate\View\View