PHP

laravel controller return message

#In Controller
use Session;
       
Session::flash('message', "Special message goes here");
return Redirect::back();

#In View
@if (Session::has('message'))
   <div class="alert alert-info">{{ Session::get('message') }}</div>
@endif

return with success message laravel

 return redirect()->route('agent')->with(
            'success', __('Agent successfully added!')
        );

 return redirect()->back()->with('error', __('Permission Denied.'));

message get with return action laravel

return back()->with('message', 'WORKS!');

@if(session()->has('message'))
    <div class="alert alert-success">
        {{ session()->get('message') }}
    </div>
@endif

return message in laravel

create validation errors 
<!-- /resources/views/post/create.blade.php -->

<h1>Create Post</h1>

@if ($errors->any())
    <div class="alert alert-danger">
        <ul>
            @foreach ($errors->all() as $error)
                <li>{{ $error }}</li>
            @endforeach
        </ul>
    </div>
@endif

<!-- Create Post Form -->








##error message:
<!-- /resources/views/post/create.blade.php -->

<label for="title">Post Title</label>

<input id="title" type="text" name="title" class="@error('title') is-invalid @enderror">

@error('title')
    <div class="alert alert-danger">{{ $message }}</div>
@enderror