Updating previous Session Array Laravel - php

Question

I have an issue on how can I update my Previous array ?
What currently happening to my code is its just adding new session array instead of updating the declared key here's my code:
foreach ($items_updated as $key => $added)
{
if ($id == $added['item_id'])
{
$newquantity = $added['item_quantity'] - 1;
$update = array(
'item_id' => $items['item_id'],
'item_quantity' => $newquantity,
);
}
}
Session::push('items', $updated);

Answer 1

$items = Session::get('items', []);
foreach ($items as &$item) {
if ($item['item_id'] == $id) {
$item['item_quantity']--;
}
}
Session::set('items', $items);

Answer 2

If you have nested arrays inside your session array. You can use the following way to update the session: $session()->put('user.age',$age);
Example
Supppose you have following array structure inside your session
$user = [
"name" => "Joe",
"age" => 23
]
session()->put('user',$user);
//updating the age in session
session()->put('user.age',49);
if your session array is n-arrays deep then use the dot (.) followed by key names to reach to the nth value or array, like session->put('user.comments.likes',$likes)

Answer 3

I guess this will work for you if you are on laravel 5.0. But also note, that I haven't tested it on laravel 4.x, however, I expect the same result anyway:
//get the array of items (you will want to update) from the session variable
$old_items = \Session::get('items');
//create a new array item with the index or key of the item
//you will want to update, and make the changes you want to
//make on the old item array index.
//In this case I referred to the index or key as quantity to be
//a bit explicit
$new_item[$quantity] = $old_items[$quantity] - 1;
//merge the new array with the old one to make the necessary update
\Session::put('items',array_merge($old_items,$new_item));

Answer 4

You can use Session::forget('key'); to remove the previous array in session.
And use Session::push to add new items to Session.