how do I delete an item in session that is in an array

You can pull() (gets and forgets) and save to variable, then update your session data and put() back. IMO best way to keep things in sync with proper data.

https://laravel.com/docs/5.3/session#using-the-session

thanks @jekinney

I did it like this for anyone else wondering in future:

        $images = Session::get('image');
        $found = null;

        foreach ($images as $key => $value) {
            if($value == $request->image) {
                $found = $key;
                @unlink($request->image);
            }
        }
        
        // reset image array
        Session::pull('image');

        if($found)
            unset($images[$found]);

        Session::put('image', $images);

Try to use '.' to access array elements.

$value = $request->session()->pull('test.2');

@Organizm238 you mean

$request->session()->pull('test.2');

would that work? it would be better then my solution.

@maxnb yes, sory, i meant 'pull' . I just can't test it right now, but from the laravel docs it should work. UPDATE: I've tested it, it works.

session()->push('test', '1');
session()->push('test', '2');
session()->push('test', '3');
session()->pull('test.2');
dd(session()->all());

 "test" => array:2 [▼
    0 => "1"
    1 => "2"
  ]

Remember that test.2 finds element with a key=2, not with a value. So code above removes element with value '3'.

New answer

I think it would be easier to store a collection instead of an array, which gives you all the of the Collection features

session(['test'=>collect([])]);

And then for any modification, you are able to handle a normal collection

Ex: to delete an item by its value:

$key = session('test')->search(1);
session('test')->forget($key);