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Laravel中的Input :: get（）不起作用

分类: 技术问答 • 2022-03-10 21:15:18
问题描述：

I have a form in my bestellen.blade.php:

<form method="get" action="{{action("BestellController@mkOrder")}}">
{{ csrf_field() }}
        <fieldset class="everybody">
        <!-- Lieferart bestimmen -->
        Bitte wählen Sie eine Lieferart aus:
        <label>Lieferart</label>
        <select name="lieferart" required>
            <option value="abholung">Abholung</option>
            <option value="lieferung">Lieferung</option>
        </select>
    </fieldset>

    @guest
    <fieldset class="everybody" disabled>
        <label for="vor">Vorname: </label>
        <input type="text" id="vor" name="vorname" required>
        <label for="nach">Nachname: </label>
        <input type="text" id="nach" name="nachname" required>
        <label for="email">E-Mail-Adresse: </label>
        <input type="text" id="email" name="email" required>
    </fieldset>
    <fieldset id="address">
        <input type="text" id="str" name="strasse" required>
        <label for="str">Straße: </label>
        <input type="text" id="nr" name="hausnummer" required>
        <label for="nr">Hausnummer: </label>
        <input type="text" id="plz" name="plz" required>
        <label for="plz">PLZ: </label>
        <input type="text" id="ort" name="ort" required>
        <label for="ort">Ort: </label>
    </fieldset>
    @endguest


    <fieldset class="everybody">
        Bitte wählen Sie eine Zahlungsart:
        <label>Zahlungsart</label>
        <select name="dropdown" required>
            <option value="bar">Bar</option>
            <option value="rechnung">Rechnung</option>
        </select>
    </fieldset>
    <input type="submit" value="bestellen">

    <input type="checkbox" id="agb" name="agb" onclick="setAGBState()">
    <label for="agb">Ich habe die AGB gelesen und stimme ihr zu.</label>
   </form>

mkOrder from BestellController looks like this:

public function mkOrder(Request $request){
    $lieferart = Input::get('lieferart');
    $zahlungsart = Input::get('zahlungsart');
    $data = array('lieferart'=>$lieferart, 'zahlung'=>$zahlungsart);
    //Kunde ist eingeloggt
    if(Auth::check()){
      //TODO after problem is fixed
    }
    //Kunde ist nicht eingeloggt
    else{

        //TODO after problem is fixed
    }

    return view('fertig', $data);
}

The routes in web.php look like this:

Route::get('/bestellen{lieferart?}{zahlung?}', 'BestellController@mkOrder')->name('order.save');
Route::get('/fertig{lieferart?}{zahlung?}', 'BestellController@fertig');

Now I have two Problems:

1.) My Input::get are both not working. What does work is that the variables are written to the url like this: http://localhost:8000/bestellen?_token=i436RkJAeYQhX4aKNjQ4XEMchRESzTKV0vsdkWha&lieferart=abholung&vorname=Firstname&nachname=Lastname&email=xxx%40web.de&dropdown=bar&agb=on That looks fine. But now I want to get the variables into my Controller and that does not work. I had a look here: Laravel 4: Input::get() is not working and as suggested I tried it with POST instead of GET. But that didn't help. I also had a look here, but that is not my kind of problem: Laravel Input:get() not working

What I tried, too, was using $_GET[] instead of Input::get(). But that did not work, too. And I tried $request->input('lieferart') etc.. But it still did not work.

I always had a look into my Browser Console to see if there are any error messages, but there were none. When I make a printoutput of the variables, there is nothing shown.

2.) When clicking on "bestellen" I'm redirected to the bestellen.blade.php. But I as you can see in the Method mkOrder I want to get fertig.blade.php. What am I doing wrong?

I'm new to Laravel and Webprogramming in general. So, sorry if I'm asking stupid questions.

Here is my log:

[2018-06-12 15:43:39] local.ERROR: Undefined variable: data (View: C:\xampp\htdocs\getraenkeesources\views\bestellen.blade.php) {"exception":"    
[object] (ErrorException(code: 0): Undefined variable: data (View: C:\\xampp\\htdocs\\getraenke\esources\\views\\bestellen.blade.php) at C:\\xampp\\htdocs\\getraenke\\storage\\framework\\views\\f00204dc2065285d3c2987197239e5e0a222a234.php:79, ErrorException(code: 0): Undefined variable: data at C:\\xampp\\htdocs\\getraenke\\storage\\framework\\views\\f00204dc2065285d3c2987197239e5e0a222a234.php:79)
[stacktrace]
#0 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\View\\Engines\\PhpEngine.php(45): Illuminate\\View\\Engines\\CompilerEngine->handleViewException(Object(ErrorException), 1)
#1 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\View\\Engines\\CompilerEngine.php(59): Illuminate\\View\\Engines\\PhpEngine->evaluatePath('C:\\\\xampp\\\\htdocs...', Array)
#2 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\View\\View.php(142): Illuminate\\View\\Engines\\CompilerEngine->get('C:\\\\xampp\\\\htdocs...', Array)
#3 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\View\\View.php(125): Illuminate\\View\\View->getContents()
#4 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\View\\View.php(90): Illuminate\\View\\View->renderContents()
#5 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Http\\Response.php(42): Illuminate\\View\\View->render()
#6 C:\\xampp\\htdocs\\getraenke\\vendor\\symfony\\http-foundation\\Response.php(196): Illuminate\\Http\\Response->setContent(Object(Illuminate\\View\\View))
#7 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(727): Symfony\\Component\\HttpFoundation\\Response->__construct(Object(Illuminate\\View\\View))
#8 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(699): Illuminate\\Routing\\Router::toResponse(Object(Illuminate\\Http\\Request), Object(Illuminate\\View\\View))
#9 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(659): Illuminate\\Routing\\Router->prepareResponse(Object(Illuminate\\Http\\Request), Object(Illuminate\\View\\View))
#10 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(30): Illuminate\\Routing\\Router->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#11 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Middleware\\SubstituteBindings.php(41): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#12 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Routing\\Middleware\\SubstituteBindings->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#13 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#14 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\VerifyCsrfToken.php(67): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#15 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\VerifyCsrfToken->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#16 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#17 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\View\\Middleware\\ShareErrorsFromSession.php(49): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#18 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\View\\Middleware\\ShareErrorsFromSession->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#19 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#20 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Session\\Middleware\\StartSession.php(63): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#21 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Session\\Middleware\\StartSession->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#22 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#23 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse.php(37): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#24 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Cookie\\Middleware\\AddQueuedCookiesToResponse->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#25 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#26 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Cookie\\Middleware\\EncryptCookies.php(59): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#27 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Cookie\\Middleware\\EncryptCookies->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#28 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#29 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(102): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#30 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(661): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))
#31 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(636): Illuminate\\Routing\\Router->runRouteWithinStack(Object(Illuminate\\Routing\\Route), Object(Illuminate\\Http\\Request))
#32 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(602): Illuminate\\Routing\\Router->runRoute(Object(Illuminate\\Http\\Request), Object(Illuminate\\Routing\\Route))
#33 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Router.php(591): Illuminate\\Routing\\Router->dispatchToRoute(Object(Illuminate\\Http\\Request))
#34 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(176): Illuminate\\Routing\\Router->dispatch(Object(Illuminate\\Http\\Request))
#35 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(30): Illuminate\\Foundation\\Http\\Kernel->Illuminate\\Foundation\\Http\\{closure}(Object(Illuminate\\Http\\Request))
#36 C:\\xampp\\htdocs\\getraenke\\vendor\\fideloper\\proxy\\src\\TrustProxies.php(57): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#37 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Fideloper\\Proxy\\TrustProxies->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#38 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#39 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php(30): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#40 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#41 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#42 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest.php(30): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#43 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\TransformsRequest->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#44 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#45 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize.php(27): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#46 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\ValidatePostSize->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#47 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#48 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode.php(46): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#49 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(149): Illuminate\\Foundation\\Http\\Middleware\\CheckForMaintenanceMode->handle(Object(Illuminate\\Http\\Request), Object(Closure))
#50 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Routing\\Pipeline.php(53): Illuminate\\Pipeline\\Pipeline->Illuminate\\Pipeline\\{closure}(Object(Illuminate\\Http\\Request))
#51 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Pipeline\\Pipeline.php(102): Illuminate\\Routing\\Pipeline->Illuminate\\Routing\\{closure}(Object(Illuminate\\Http\\Request))
#52 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(151): Illuminate\\Pipeline\\Pipeline->then(Object(Closure))
#53 C:\\xampp\\htdocs\\getraenke\\vendor\\laravel\\framework\\src\\Illuminate\\Foundation\\Http\\Kernel.php(116): Illuminate\\Foundation\\Http\\Kernel->sendRequestThroughRouter(Object(Illuminate\\Http\\Request))
#54 C:\\xampp\\htdocs\\getraenke\\public\\index.php(55): Illuminate\\Foundation\\Http\\Kernel->handle(Object(Illuminate\\Http\\Request))
#55 C:\\xampp\\htdocs\\getraenke\\server.php(21): require_once('C:\\\\xampp\\\\htdocs...')
#56 {main}
"}

答

Thanks to @aynber. As @aynber wrote in the comment underneath the question I never reached mkOrder. The reason was that I also had a route called Route::get('/bestellen', 'BestellController@index'); which task it was to send me to the bestellen.blade.php for the first time. Unfortunately always this route was used. I removed it and put an if-Statement in my mkOrder so I does both tasks (showing bestellen.blade.php when first entering \bestellen and sending the form stuff to \fertig else).

答

In your controller, use the name of the input to get the value you are looking for by using the $request object you are already passing through, like this:

$name = $request->input('name');

Have you looked at this reference page yet? https://laravel.com/docs/5.6/requests

You can also access all of your input data by doing the following:

$input = $request->all();

You can print the results to the screen using dd() like this:

$input = $request->all(); dd($input);

and this way you can see what data is coming through via your HTTP request.

Regarding your 2nd question, I think you're getting redirected to the wrong page because your controller is erroring out due to the $data variable not getting defined. If you define the $data variable by getting the right input into the controller, then that variable won't throw the error anymore and your selected view will get returned.

答

On top of your controller, make sure to import this Request

use Illuminate\Http\Request;

Your controller would become

    public function mkOrder(Request $request){
        $data = $request->only(['lieferart', 'zahlungsart']);
        //Kunde ist eingeloggt
        if(Auth::check()){
           //TODO after problem is fixed
         }
         //Kunde ist nicht eingeloggt
          else{

           //TODO after problem is fixed
         }

        return view('fertig', compact('data'));
}

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