Session

That's what laravels authentication is for.

Then how can i do session out for my web application?How can i set time for it?

Include the use statement:

use Illuminate\Support\Facades\Session;

And in the method where you need to set a session variable:

Session::put('dogsearch', $dogsearch);

to retrieve from session:

$myvar = Session::get('dogsearch');

But session is in the docs as well.

One place I use session is to build a redirect to a certain page:

return redirect('dog/indexadmin?p=' . Session::get('dogpage') . '&psch=' . Session::get('dogsearch') . '&aval=' . Session::get('dogaval'));

These are just examples.

Then how can i do session out for my web application?How can i set time for it?

Look in config\session.php

@JLRDW - Thank you