laravel validation

1<!-- /resources/views/post/create.blade.php -->
2
3<h1>Create Post</h1>
4
5@if ($errors->any())
6    <div class="alert alert-danger">
7        <ul>
8            @foreach ($errors->all() as $error)
9                <li>{{ $error }}</li>
10            @endforeach
11        </ul>
12    </div>
13@endif
14
15<!-- Create Post Form -->

1/**
2 * Store a new blog post.
3 *
4 * @param  Request  $request
5 * @return Response
6 */
7public function store(Request $request)
8{
9    $validatedData = $request->validate([
10        'title' => 'required|unique:posts|max:255',
11        'body' => 'required',
12    ]);
13
14    // The blog post is valid...
15}

1<?php
2
3namespace App\Providers;
4
5use Illuminate\Support\ServiceProvider;
6use Illuminate\Support\Facades\Validator;
7
8class AppServiceProvider extends ServiceProvider
9{
10    /**
11     * Register any application services.
12     *
13     * @return void
14     */
15    public function register()
16    {
17        //
18    }
19
20    /**
21     * Bootstrap any application services.
22     *
23     * @return void
24     */
25    public function boot()
26    {
27        Validator::extend('foo', function ($attribute, $value, $parameters, $validator) {
28            return $value == 'foo';
29        });
30    }
31}

1use Illuminate\Validation\Rule;
2
3Validator::make($data, [
4    'email' => [
5        'required',
6        Rule::unique('users')->ignore($user->id),
7    ],
8]);

1"foo" => "Your input was invalid!",
2
3"accepted" => "The :attribute must be accepted.",
4
5// The rest of the validation error messages...

1'foo.*.id' => 'distinct'

1Validator::extend('foo', 'FooValidator@validate');

1Validator::extendImplicit('foo', function ($attribute, $value, $parameters, $validator) {
2    return $value == 'foo';
3});

1Rule::unique('users')->ignore($user->id, 'user_id')

1$rules = ['name' => 'unique:users,name'];
2
3$input = ['name' => ''];
4
5Validator::make($input, $rules)->passes(); // true