Displaying the Error Messages in Laravel after being Redirected from controller

In Laravel, you can use the withErrors method to pass error messages to a view after a redirect.

Here's an example of how you can use it in a controller:

Use the withErrors method to pass error messages to a view after a redirect in Laravel

<?php

public function store(Request $request)
{
    $validator = \Illuminate\Support\Facades\Validator::make($request->all(), [
        'title' => 'required|unique:posts|max:255',
        'body' => 'required',
    ]);

    if ($validator->fails()) {
        return redirect()->back()->withErrors($validator);
    }

    $post = new Post;
    $post->title = $request->title;
    $post->body = $request->body;
    $post->save();

    return redirect('posts')->with('success', 'Post has been added');
}

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To display the error messages in the view, you can use the $errors variable. This variable will be available in the view and will contain the error messages:

Display error messages in the view using the $errors variable

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

You can also use the @error directive to display an error message for a specific field:

Use the @error directive to display a specific field error

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