重定向并从控制器传递数据

Question

I want to redirect from a controller and pass data;

 public function fortest(Request $request)
{
     $user = DB::table('user2s')->where('name', $request->name)->first();
     if (isset($user))
     {   
        return redirect('/fortest2', ['user'=>$user]);//compact('user'));
        //return $this->fortest2($request);
     }
}
public function fortest2(Request $request)
{
    return $request->name;
}

Route::get('/fortest', 'UserController@fortest');
Route::get('/fortest2/', 'UserController@fortest2');

The code works when calling the controller directly from within the controller. The data type has a model. How can I accomplish this?

Answer 1

If you want to pass data in a redirect, you can use the with() method. You have to append it to the redirect like so:

redirect('/fortest2')->with('data', 'value');

It will be saved in your current session, so it will be only persistent until you refresh the page again. If you want to store it for longer you have to go with a database/textfile etc. You can then check for it using

if (session()->has('data')) { // check if it exists
    $value = session('data'); // to retrieve value
}

You can also send errors with the redirect (from validation i.e.) using withErrors(), sending the current input with it using withInput()

---

For what you want to achieve, try using this in your controller. This will just send the users name with the redirect:

$user = DB::table('user2s')->where('name', $request->name)->first();
redirect('/fortest2')->with('username', $user->name);

You can then access is via session('username')