->update() in laravel code example

Example 1: update or create laravel

$user = User::updateOrCreate(['name' => request()->name], [ 
    'foo' => request()->foo
]);

Example 2: laravel fillable

/**
     * The attributes that are mass assignable.
     */
    protected $fillable = [
      					   'title',
                           'slug',
                           'body',
                           'image',
                           'published',
                           'comments_open'
                          ];

Example 3: laravel update

<!-mass update-->
App\Models\Flight::where('active', 1)
          ->where('destination', 'San Diego')
          ->update(['delayed' => 1]);

Example 4: create laravel update

const CREATED_AT = 'creation_date';
const UPDATED_AT = 'last_update';