LARAVEL 7, Undefined variable, cant pass Variable from Controller to View

im new at Laravel, and im making a CRUD following this tutorial:

https://appdividend.com/2020/03/13/laravel-7-crud-example-laravel-7-tutorial-step-by-step/

first i made it on my own, and then i just copied the code from GitHub, in both cases im getting in the variable inside the @foreach:

FacadeIgnitionExceptionsViewException Undefined variable: coronacases

I searched a bit and tryed some other solutions with no luck, so i started a new project with just index function to see if data is passed from controler to view.

This is my code, Controller:

// TestController


namespace AppHttpControllers;

use IlluminateHttpRequest;

class TestController extends Controller
{

    public function index()
    {
        $name = 'hugo';

        return view('test', compact('name'));
    }

JavaScript
​x
 
// TestController​​namespace AppHttpControllers;​use IlluminateHttpRequest;​class TestController extends Controller{​    public function index()    {        $name = 'hugo';​        return view('test', compact('name'));    }​

Alternative sintaxys tested in Controller:

/***
* return view('/test', compact('name'));
* return view('name', ['name' => 'James']); with out $name = 'hugo'; earier.
* return view('test', $name]);
* return view('test')->with('name', $data);
* return view('test')->with('name', 'hugo'); with out $name = 'hugo'; earier.
* other solutions tryed here dosnt seems to change anything.
***/

JavaScript
 
/**** return view('/test', compact('name'));* return view('name', ['name' => 'James']); with out $name = 'hugo'; earier.* return view('test', $name]);* return view('test')->with('name', $data);* return view('test')->with('name', 'hugo'); with out $name = 'hugo'; earier.* other solutions tryed here dosnt seems to change anything.***/​

Routes:

Route::get('/', function () {
    return view('test');
});
Route::resource('test', 'TestController');

JavaScript
 
Route::get('/', function () {    return view('test');});Route::resource('test', 'TestController');​

Alternative Routes Tested:

/***
* Route::get('/test', 'TestController@index');
*
* Route::get('/', function () {
*    return view('test', ['name' => 'James']);
*}); //this one worked, but its not getting data from Controller, so its now what i need
*
*Route::get('/', function () {
*    return view('test', ['name' => $data]);
*}); //didnt work
*
***/ // I think that the problem is here, im having trouble understanding Routes at Laravel Docs

JavaScript
 
/**** Route::get('/test', 'TestController@index');** Route::get('/', function () {*    return view('test', ['name' => 'James']);*}); //this one worked, but its not getting data from Controller, so its now what i need**Route::get('/', function () {*    return view('test', ['name' => $data]);*}); //didnt work****/ // I think that the problem is here, im having trouble understanding Routes at Laravel Docs​

View:

<html>
    <body>
        <h1>Hello, {{ $name }}</h1>
    </body>
</html>

JavaScript
 
<html>    <body>        <h1>Hello, {{ $name }}</h1>    </body></html>​

Also tryed at View:

/***
* $data
* <?php echo $data ?>
* {{ $name ?? '' }}
***/

JavaScript
 
/**** $data* <?php echo $data ?>* {{ $name ?? '' }}***/​

All this Test, and im getting same error, Im missing Something and i cant figure it out… or i have some trouble with Laravel,the sure things is that im stuck.

Complementary info:

php artisan route:list resoult:

Environment information

Laravel version: 7.16.1, Laravel locale: en, Laravel config cached: false, PHP version: 7.4.6.

Request

URL http://127.0.0.1:8000/ Method GET

Headers

host 127.0.0.1:8000 user-agent Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:75.0) Gecko/20100101 Firefox/75.0

I also tryed with php artisan view:cache && php artisan view:clear

Answer

You’ve defined a function called index on your TestController but you have not used it. In your route, you are not using the controller and that function , so you get this error.
Your method is like : route > view
It should be : route > controller > view

So Change your route :

Route::get('/', function () {
    return view('test');
});

JavaScript
 
Route::get('/', function () {    return view('test');});​

Route::get('/', 'TestController@index');

JavaScript
 
Route::get('/', 'TestController@index');​

Cheers 🙂

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Answer