Define routes for displaying and submitting the form using Route::get and Route::post in web.php. 2. Create a controller with create() to show the form and store() to handle submission, including validation. 3. Build a Blade view with @csrf, form fields, @error directives for validation messages, and old() to preserve input. 4. Always use named routes and Laravel’s built-in features like validation and CSRF protection for secure, clean form handling.
Creating a form in Laravel is straightforward, especially when using Blade templates and Laravel’s built-in form handling features. Here’s a step-by-step guide to help you build and process a form in Laravel.
1. Create a Route for the Form
First, define routes in your routes/web.php file to display the form and handle form submission.
use Illuminate\Support\Facades\Route;
use App\Http\Controllers\PostController;
Route::get('/post/create', [PostController::class, 'create'])->name('post.create');
Route::post('/post', [PostController::class, 'store'])->name('post.store');2. Create a Controller
Generate a controller (if not already created):
php artisan make:controller PostController
In PostController.php, define the create and store methods:
namespace App\Http\Controllers;
use Illuminate\Http\Request;
class PostController extends Controller
{
// Show the form
public function create()
{
return view('posts.create');
}
// Handle form submission
public function store(Request $request)
{
$request->validate([
'title' => 'required|string|max:255',
'content' => 'required',
]);
// Save data (example with a Post model)
// Post::create($request->all());
return redirect()->route('post.create')->with('success', 'Post created successfully!');
}
}3. Create the Blade Form View
Create a Blade file at resources/views/posts/create.blade.php:
@extends('layouts.app')
@section('content')
<h2>Create a New Post</h2>
@if(session('success'))
<div class="alert alert-success">
{{ session('success') }}
</div>
@endif
<form action="{{ route('post.store') }}" method="POST">
@csrf
<div class="form-group">
<label for="title">Title</label>
<input type="text" name="title" id="title" class="form-control" value="{{ old('title') }}">
@error('title')
<div class="text-danger">{{ $message }}</div>
@enderror
</div>
<div class="form-group">
<label for="content">Content</label>
<textarea name="content" id="content" rows="5" class="form-control">{{ old('content') }}</textarea>
@error('content')
<div class="text-danger">{{ $message }}</div>
@enderror
</div>
<button type="submit" class="btn btn-primary">Submit</button>
</form>
@endsection4. Key Points to Remember
- @csrf: Always include
@csrfin Laravel forms to prevent CSRF attacks. - Validation: Use Laravel’s
validate()method to validate input. - old() helper: Preserves form data after a validation error.
- @error directive: Easily display validation error messages.
- Route naming: Use named routes (
->name('post.create')) for cleaner redirects and links.
Optional: Use Laravel Collective (Legacy)
In older Laravel versions, people used laravelcollective/html for form helpers like Form::open(). But now, it's recommended to use plain HTML with Blade directives.
If you still want it:
composer require laravelcollective/html
Then use:
{!! Form::open(['route' => 'post.store']) !!}
@csrf
{!! Form::text('title', null, ['class' => 'form-control']) !!}
{!! Form::textarea('content', null, ['class' => 'form-control']) !!}
{!! Form::submit('Submit', ['class' => 'btn btn-primary']) !!}
{!! Form::close() !!}But again, plain HTML with Blade works great and is simpler.
Basically, that’s it. Laravel makes form handling clean and secure with validation, CSRF protection, and easy error handling. Just route → controller → Blade form → process.
The above is the detailed content of How to create a form in Laravel?. For more information, please follow other related articles on the PHP Chinese website!
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