'Undefined variable problem on Laravel 9.x

I'm trying to get a my title variable from my control page and display it on the about page.

I don't think I have a typo, but it might me. I'm not sure.

Here is my control page code;

class PagesController extends Controller
{
    public function index(){
        $title = 'Welcome to Laravel';
        return view ('pages.index')->with('title', $title);
    }
    public function about(){
        $title = 'About us';
        return view ('pages.about')->with('title', $title);
    }
    public function services(){
        $title = 'The services';
        return view ('pages.services')->with('title', $title);
    }
}

In this page, the index and services functions work fine, but I can't get the about page.

Here is my display pages;

This is Index page

@extends('layouts.app')
@section('content')
    <h1>{{$title}}</h1>
    <p>This is the Laravel Application</p>
 @endsection

This is the about page:

@extends('layouts.app')
@section('content')
<h1>{{$title}}</h1>
<p>This is the About page</p>
@endsection

The error I have

phplaravel


Solution 1:[1]

Since this is a test application from a lesson, I forgot to delete some extra code in my route file.

This is my route file:

Route::get('/', 'App\Http\Controllers\PagesController@index');
Route::get('/about', 'App\Http\Controllers\PagesController@about');
Route::get('/services', 'App\Http\Controllers\PagesController@services');

The commented area shouldn't be here. That was the whole problem over here...
// Route::get('/about', function(){
//     return view ('pages.about');
// });

Solution 2:[2]

Do this:

 return view ('pages.index', compact('title'));

or:

return view ('pages.index', [
   'title' => $title
]);

Solution 3:[3]

Since you are returning just the title, there isn't any need to call any verbs. Rather you should directly call the view:

route::view('/about', 'Pagecontroller@about');

or

pass the parameter by compact:

 return view ('pages.index', compact('title'));

or

return view ('pages.index', ['title' => $title]);

Solution 4:[4]

This form of passing variables is a short-lived entry of a variable into the session. Then accessing the variable on the page should look like this:

{{ session('title') }}

If you want to pass data to the view, then you need to use the method

return view('pages.services', ['title' => $title]);

Laravel views

Sources

This article follows the attribution requirements of Stack Overflow and is licensed under CC BY-SA 3.0.

Source: Stack Overflow

Solution Source
Solution 1 Peter Mortensen
Solution 2 aquinoaldair
Solution 3 Peter Mortensen
Solution 4 Peter Mortensen

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