Sessions

Question 1

Where is your application’s session configuration file stored?

Answer 1

It is stored at config/session.php

Question 2

What is Laravel’s default session driver?

Answer 2

database

Question 3

Which are two primary ways of working with session data in Laravel?

Answer 3

The global session helper and via a Request instance.

Question 4

How can you retrieve all the data in the session?

Answer 4

$data = $request->session()->all();

Question 5

How can you retrieve a subset of the session data?

Answer 5

Either by using the only method, which will only fetch the requested items, or by using the except method, which will fetch everything except the listed items.

Question 6

How can you determine if an item is present and not null in the session?

Answer 6

->session()->has('example')

Question 7

If you want to check if an item is present in the session, even if it is null, which method should you use?

Answer 7

->session()->exists('example')

Question 8

To determine if an item is not present in the session, what do you need to do?

Answer 8

->session()->missing('example')

Question 9

How can you add a new value onto a session value that is an array?

Answer 9

->session()->push('user.teams', 'developers');

This would add developers as a team to the users table.

Question 10

Which method will retrieve and delete an item from the session in a single statement?

Answer 10

->session()->pull('example')

Question 11

How can you count an integer up or down within your session data?

Answer 11

$request->session()->increment('count');

$request->session()->increment('count', $incrementBy = 2);

$request->session()->decrement('count');

$request->session()->decrement('count', $decrementBy = 2);

Question 12

How can you store an item in the session that is only going to be there for the next request?

Answer 12

->session()->flash('status', 'Task was successful!');

After being accessed once flashed items will be deleted from the session. Flash data is primarily useful for short-lived status messages.

Question 13

Which methods let you persist your flash data for an additional request?

Answer 13

->session()->reflash(); for everything or
->session()->keep[('example', 'exampletwo']); for specific items

Question 14

How can you remove one or multiple items from the session?

Answer 14

->session()->forget('example');
->session()->forget(['example', 'exampletwo']);

Or to just remove everything from the session:
->session()->flush();

Question 15

How can you regenerate the session ID and how can you do that plus remove all data from the session in a single statement?

Answer 15

To just regenerate the session ID use ->session()->regenerate();
If you also want to remove all data from the session while also regenerating the session ID, use ->session()->invalidate();