$request->session()->put('key','value');
use Illuminate\Support\Facades\Session; Session::flash('message','This is a message!'); then in your view:: @if(Session::has('message')) <p class="alert {{ Session::get('alert-class', 'alert-info') }}">{{Session::get('message') }}</p> @endif
session(['name' => 'data']);
$data = $request->session()->all();