get url param in laravel code example

Example 1: get value mentthod get laravel

Input::get('lastName') ;
//lastName is variable in view

Example 2: laravel get url parameters in controller

public function update($name)
{
    User::where('name', $name)->first();
    return view('test')->with('user', $user);
}

Example 3: laravel get url parameters in controller

Route::put('user/{name}', 'UserController@show');