如何在 Laravel 5 中调用视图内的控制器函数?

laravelphpserver side programming更新于 2025/4/29 20:52:17

您想要使用的控制器方法可以添加到视图内，如下所示 –

<?php echo App\Http\Controllers\StudentController::test(); ?>

这里 App\Http\Controllers\StudentController 是控制器，test() 是我们要调用的方法。

示例 1

视图是 student.blade.php。这里我们调用控制器 studentController 和方法 test()。方法 test() 在 studentController 内定义，如下所示 −

<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Models\Student;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Collection;
use URL;
use Illuminate\Support\Facades\App;
class StudentController extends Controller {
   public function index() {
      return view('student');
   }
   public function validateform(Request $request) {
   }
   public function test() {
      echo "Testing controller function in view";
   }
}

HTML 文件

<html>
<head>
  <title>Student Form
</head>
<body>
   @if (count($errors) > 0)
      <div class = "alert alert-danger">
         <ul>
         @foreach ($errors->all() as $error)
            <li>{{ $error }}</li>
         @endforeach
         </ul>
      </div>
   @endif

   <?php
   echo Form::open(array('url'=>'/student'));
      echo App\Http\Controllers\StudentController::test();
   ?>
   <table border = '1'>
   <tr>
      <td align = 'center' colspan = '2'>Student Registration</td>
   </tr>
  <tr>
      <td>Name</td>
      <td><?php echo Form::text('name'); ?></td>
   </tr>
   <tr>
      <td>Email</td>
      <td><?php echo Form::text('email'); ?></td>
   </tr>
   <tr>
      <td>Age</td>
      <td><?php echo Form::text('age'); ?></td>
   </tr>
   <tr>
      <td>Address
      <td><?php echo Form::text('address'); ?></td>
   </tr>
   <tr>
      <td align = 'center' colspan = '2'><?php echo Form::submit('submit'); ?></td>
   </tr>
   </table>
<?php
   echo Form::close();
?>
</body>
</html>

输出

上述代码的输出为 −

在上面的输出中，我们可以看到方法 test() 被调用，并且我们回显的消息显示给用户。

在视图中使用控制器的另一种方法如下 −

示例 2

您可以使用以下代码在视图中使用控制器。

<?php use App\Http\Controllers\StudentController;
   StudentController::test();
?>

添加上述代码后，视图如下 −

<html>
<head>
   <title>Student Form</title>
</head>
<body>
   @if (count($errors) > 0)
      <div class = "alert alert-danger">
         <ul>
         @foreach ($errors->all() as $error)
            <li>{{ $error }}</li>
         @endforeach
         </ul>
      </div>
   @endif
   <?php
      echo Form::open(array('url'=>'/student'));
   ?>
   <?php use App\Http\Controllers\StudentController;
      StudentController::test();
   ?>
   <table border = '1'>
   <tr>
      <td align = 'center' colspan = '2'>Student Registration</td>
  </tr>
   <tr>
      <td>Name</td>
     <td><?php echo Form::text('name'); ?></td>
   </tr>
   <tr>
     <td>Email</td>
      <td><?php echo Form::text('email'); ?></td>
   </tr>
  <tr>
      <td>Age</td>
      <td><?php echo Form::text('age'); ?></td>
   </tr>
   <tr>
      <td>Address</td>
      <td><?php echo Form::text('address'); ?></td>
   </tr>
   <tr>
     <td align = 'center' colspan = '2'><?php echo Form::submit('submit'); ?></td>
   </tr>
   </table>
   <?php
      echo Form::close();
   ?>
</body>
</html>

输出

上述代码的输出如下

示例 3

您还可以通过将控制器包装在 blade 模板中的花括号内来使用它，如下所示 -

{{ App\Http\Controllers\StudentController::test() }}

在视图内部，它将如下所示 -

<html>
<head>
   <title>Student Form</title>
</head>
<body>
   @if (count($errors) > 0)
      <div class = "alert alert-danger">
         <ul>
            @foreach ($errors->all() as $error)
               <li>{{ $error }}</li>
            @endforeach
         </ul>
      </div>
   @endif
   <?php
      echo Form::open(array('url'=>'/student'));
   ?>
   {{ App\Http\Controllers\StudentController::test() }}
   <table border = '1'>
  <tr>
      <td align = 'center' colspan = '2'>Student Registration</td>
   </tr>
   <tr>
      <td>Name</td>
      <td><?php echo Form::text('name'); ?></td>
   </tr>
   <tr>
      <td>Email</td>
      <td><?php echo Form::text('email'); ?></td>
   </tr>
  <tr>
      <td>Age</td>
     <td><?php echo Form::text('age'); ?></td>
   </tr>
   <tr>
      <td>Address
      <td><?php echo Form::text('address'); ?></td>
   </tr>
  <tr>
      <td align = 'center' colspan = '2'><?php echo Form::submit('submit'); ?></td>
   </tr>
   </table>
   <?php
      echo Form::close();
   ?>
</body>
</html>

控制器如下 −

<?php
namespace App\Http\Controllers;
use Illuminate\Http\Request;
use App\Models\Student;
//use Illuminate\Support\Facades\Schema;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Collection;
use URL;
use Illuminate\Support\Facades\App;
class StudentController extends Controller{
   public function index() {
      return view('student');
   }

   public function validateform(Request $request) {
      $data = file_get_contents('php://input');
      print_r($data);
   }
   public function test() {
      echo "Testing controller function in view";
   }
}