本文詳細介紹了Laravel 8表格驗證教程。我們將查看Laravel 8表單驗證的示例和錯誤消息。
您還可以在laravel 8表單驗證中定義自定義錯誤消息。我們將在每個字段中顯示錯誤消息。我們將使用has()來檢查laravel 8中的錯誤消息。
在這裏,我將向您展示表單驗證的非常簡單的示例,您可以簡單地在您的Laravel 8項目中使用。
創建路由
在這裏,我們正在學習Laravel 8中的簡單且簡單的驗證示例,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' ]);
創建控制器
現在我們將添加兩個控制器方法,一個只會顯示帶有get請求的blade視圖文件,另一個用於發佈請求。
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.');
}
}
創建視圖文件
現在我們將創建createUser.blade.php文件,在這裏,我們將創建具有錯誤驗證消息的引導簡單表單。所以,讓我們創建以下文件:
resources/views/createUser.blade.php
<!DOCTYPE html>
<html>
<head>
<title>Laravel 8 form validation example - 無涯教程</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 - 無涯教程</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>
來源:https://www.learnfk.com/article-laravel-8-form-validation-exampleexample