Question 15330 in Laravel Question posted in
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Undefined variable in blade when passing variable from controller Laravel 10

So I want to return some string from model and controller, but it always says undefined variable although it passed successfully when I check it with dd($a) and dd($b). What did I do wrong ?

about.blade:

@extends('layout.template');
@section('homeContainer');

<p> {{ $a }} </p>
<br>
<p>{{ $b }}</p>
@endsection

AboutController :

<?php

namespace AppHttpControllers;

use IlluminateHttpRequest;
use AppModelsAboutModel;

class AboutController extends Controller
{
    //
    public static function info(){
        $a = AboutModel::info();
        $b = "This data is from controller";
    

        return view('about', compact('a', 'b'));
    }
}

AboutModel :

<?php

namespace AppModels;

use IlluminateDatabaseEloquentFactoriesHasFactory;
use IlluminateDatabaseEloquentModel;

class AboutModel extends Model
{
    use HasFactory;
    
    public static function Info(){
        $a = "This value is from model";
        return $a;
    }
}

Routes :

<?php


use IlluminateSupportFacadesRoute;
use AppHttpControllersAboutController;

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "web" middleware group. Make something great!
|
*/

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



Route::get('/about', function () {
    return view('about', [
        "name" => AboutController::info(),
    ]);
});
Tags:

4

Answers


  1. Chosen as BEST ANSWER
    0

    Thanks for the replies!, turn out I was wrong declarating the model as variable and the routes,

    for the routes I change it to

    Route::get('/about',[AboutController::class,'info']);

    and for the controller and model I remove the static and change the model declaration

    Controller :

     public function info()
    {
        $model = new AboutModel();
        $a = $model->Info();
        $b = "This data is from controller";

        return view('about', compact('a', 'b'));
    }

    Model :

    public function Info(){
        $a = "This value is from model";
        return $a;
    }

  2. 0

    the controller never run, only the callback in the web.php file runs.
    this means you do not have a and b variables but only a name variable

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  3. 0

    Route declaration is not correct. Route can’t handle rendered blade code as return response. Please check below code for web.php file.

    <?php
 use IlluminateSupportFacadesRoute;
 use AppHttpControllersAboutController;
/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider and all of them will
| be assigned to the "web" middleware group. Make something great!
|
*/

Route::get('/', function () {
   return view('welcome');
});
 
Route::get('/about', [AboutController::class, 'info'])->name("info");

    Rest code is fine. It will work for you.

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  4. 0

    In web.php, you should write the following code:

    Route::get('/about',[AboutController::class,'info']);
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