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php - 用户名和密码字段无法正常工作

问题描述

我正在尝试制作一个简单的登录页面，如果用户名和密码都等于“admin”，那么我想重定向到另一个名为“admin_page.php”的页面。我有以下代码，但由于某种原因，登录适用于我在用户名和密码字段上输入的任何内容，即使有空。谁能告诉我为什么会这样？这是我的代码：

<body>

<?php


 if ($_SERVER["REQUEST_METHOD"] == "POST") {

  $user = $_POST['username'];
  $pass = $_POST['psw'];
  if (($user === "admin") && ($pass ==="admin")) {
           header("Location: admin_page.php");

  } else {
  echo("error ! please enter correct data");
}

  echo $user;

}

?>

<div class="bg">

    <div class="a">
    <form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>" enctype='multipart/form-data'>
{{ csrf_field() }}
    <input type="text" placeholder="Username" name="username">
      <input type="Password" placeholder="Password" name="psw">
      <button type="submit" name="submit">Login</button>
  </form>
</div>

</div>
</body>

网页.php

Route::get('/', function () {
    return view('home');
});


Route::post('/', function () {
    return view('admin');
});

Route::post('/', function () {
    return view('admin_page');
});
// Route::get('/', function () {
//     return view('welcome');
// });

Route::view('/home', "home"); // for controller
// Route::view('/welcome', "welcome"); // for controller

Route::view('/admin', "admin"); // for controller
Route::view('/admin_page', "admin_page"); // for controller

索引.php

<?php

/**
 * Laravel - A PHP Framework For Web Artisans
 *
 * @package  Laravel
 * @author   Taylor Otwell <taylor@laravel.com>
 */

define('LARAVEL_START', microtime(true));

/*
|--------------------------------------------------------------------------
| Register The Auto Loader
|--------------------------------------------------------------------------
|
| Composer provides a convenient, automatically generated class loader for
| our application. We just need to utilize it! We'll simply require it
| into the script here so that we don't have to worry about manual
| loading any of our classes later on. It feels great to relax.
|
*/

require __DIR__.'/../vendor/autoload.php';

/*
|--------------------------------------------------------------------------
| Turn On The Lights
|--------------------------------------------------------------------------
|
| We need to illuminate PHP development, so let us turn on the lights.
| This bootstraps the framework and gets it ready for use, then it
| will load up this application so that we can run it and send
| the responses back to the browser and delight our users.
|
*/

$app = require_once __DIR__.'/../bootstrap/app.php';

/*
|--------------------------------------------------------------------------
| Run The Application
|--------------------------------------------------------------------------
|
| Once we have the application, we can handle the incoming request
| through the kernel, and send the associated response back to
| the client's browser allowing them to enjoy the creative
| and wonderful application we have prepared for them.
|
*/

$kernel = $app->make(Illuminate\Contracts\Http\Kernel::class);

$response = $kernel->handle(
    $request = Illuminate\Http\Request::capture()
);

$response->send();

$kernel->terminate($request, $response);

标签： phphtmllaravelauthenticationpost

解决方案

问题是您在哪里检查您的请求参数。

你的看法

<body>



<div class="bg">
     @if(count($errors) > 0)
         @foreach($errors as $error)
             <p>{{$error}}</p>
         @endforeach
     @endif
    <div class="a">
    <form method="post" action="/" enctype='multipart/form-data'>
{{ csrf_field() }}
    <input type="text" placeholder="Username" name="username">
    <input type="Password" placeholder="Password" name="psw">
    <button type="submit" name="submit">Login</button>
</form>
</div>

</div>
</body>

您的路线

 Route::post('/', function (Request $request) {
   $errors = [];
   if($request->has('username') && $request->has('psw')){
        if($request->input('username') === 'admin' && $request->input('psw') === 'admin'){
          return redirect('/admin_page');
        }

        else{$errors[] = "Invalid login attempt";}

   }


   return view('admin', ['errors' => $errors]);
});

但这不是这样做的方法，这只是解决了您当前的问题。我建议研究使用 laravel 的内置身份验证。

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