本文详细介绍了Laravel 8表格验证教程。我们将查看Laravel 8表单验证的示例和错误消息。
您还可以在laravel 8表单验证中定义自定义错误消息。我们将在每个字段中显示错误消息。我们将使用has()来检查laravel 8中的错误消息。
在这里,我将向您展示表单验证的非常简单的示例,您可以简单地在您的Laravel 8项目中使用。
创建路由
在这里,我们正在学习Laravel 8中的简单且简单的验证示例,只需在web.php文件中的路由中添加。
routes/web.php
<?php use Illuminate\Support\Facades\Route; use App\Http\Controllers\HomeController; Route::get('user/create', [ HomeController::class, 'create' ]); Route::post('user/create', [ HomeController::class, 'store' ]);
创建控制器
现在我们将添加两个控制器方法,一个只会显示带有get请求的blade视图文件,另一个用于发布请求。
app/Http/Controller/HomeController.php
<?php namespace App\Http\Controllers; use Illuminate\Http\Request; use App\Models\User; class HomeController extends Controller { /** * Show the application dashboard. * * @return \Illuminate\Http\Response */ public function create() { return view('createUser'); } /** * Show the application dashboard. * * @return \Illuminate\Http\Response */ public function store(Request $request) { $validatedData = $request->validate([ 'name' => 'required', 'password' => 'required|min:5', 'email' => 'required|email|unique:users' ], [ 'name.required' => 'Name is required', 'password.required' => 'Password is required' ]); $validatedData['password'] = bcrypt($validatedData['password']); $user = User::create($validatedData); return back()->with('success', 'User created successfully.'); } }
创建视图文件
现在我们将创建createUser.blade.php文件,在这里,我们将创建具有错误验证消息的引导简单表单。所以,让我们创建以下文件:
resources/views/createUser.blade.php
<!DOCTYPE html> <html> <head> <title>Laravel 8 form validation example - 无涯教程</title> <meta charset="utf-8"> <meta http-equiv="X-UA-Compatible" content="IE=edge"> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet"> </head> <body> <div class="container"> <h1>Laravel 8 Form Validation Example - 无涯教程</h1> @if(Session::has('success')) <div class="alert alert-success"> {{ Session::get('success') }} @php Session::forget('success'); @endphp </div> @endif <form method="POST" action="{{ url('user/create') }}"> {{ csrf_field() }} <div class="form-group"> <label>Name:</label> <input type="text" name="name" class="form-control" placeholder="Name"> @if ($errors->has('name')) <span class="text-danger">{{ $errors->first('name') }}</span> @endif </div> <div class="form-group"> <label>Password:</label> <input type="password" name="password" class="form-control" placeholder="Password"> @if ($errors->has('password')) <span class="text-danger">{{ $errors->first('password') }}</span> @endif </div> <div class="form-group"> <strong>Email:</strong> <input type="text" name="email" class="form-control" placeholder="Email"> @if ($errors->has('email')) <span class="text-danger">{{ $errors->first('email') }}</span> @endif </div> <div class="form-group"> <button class="btn btn-success btn-submit">Submit</button> </div> </form> </div> </body> </html>