Laravel 5.7 中未定义的变量
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Laravel 5.7 Undefined variable in view
提问by Rain
I follow the guide ( https://www.phpflow.com/php/laravel-5-6-crud-operation-using-resource-controller/) and at point "How To Create Listing in Laravel 5.6" I get the error::
我按照指南（https://www.phpflow.com/php/laravel-5-6-crud-operation-using-resource-controller/）在“如何在 Laravel 5.6 中创建列表”时出现错误::
ErrorException (E_ERROR) Undefined variable: employees (View: C:\xampp\htdocs\crud\resources\views\pages\index.blade.php)
ErrorException (E_ERROR) 未定义变量：雇员（视图：C:\xampp\htdocs\crud\resources\views\pages\index.blade.php）
Previous exceptions * Undefined variable: employees (0)
以前的异常 * 未定义变量：雇员 (0)
And in code window the error is:
在代码窗口中，错误是：
<?php
$__currentLoopData = $employees;
$__env->addLoop($__currentLoopData);
foreach($__currentLoopData as $key => $emp):
$__env->incrementLoopIndices();
$loop = $__env->getLastLoop(); ?>
Is it a compatibility issue between 5.6 and 5.7 or what? (please note that I am a noob in Laravel)
这是 5.6 和 5.7 之间的兼容性问题还是什么？（请注意，我是 Laravel 的菜鸟）
回答by adam
The guide is pretty slim, what you need to do in order to get you index working:
该指南非常精简，您需要做什么才能使索引正常工作：
namespace App\Http\Controllers;
use App\Employee;
use Illuminate\Http\Request;
class EmployeeController extends Controller
{
/**
* Display a listing of the resource.
*
* @return \Illuminate\Http\Response
*/
public function index()
{
//
return view('pages.index', ['employees' => Employee::all()]);
}
// ... The rest of the controller method below
}
If your resource definition is:
如果您的资源定义是：
Route::resource('employee', 'EmployeeController');
The Path (URL)to access this will be: /employee
访问它的路径（URL）将是：/employee
回答by aleksejjj
According to your link I do not see the full code of the controller, but your indexmethod should look like this
根据你的链接，我没有看到控制器的完整代码，但你的index方法应该是这样的
public function index()
{
$employees = Employee::all();
// Pass data to view
return view('employee.index', ['employees' => $employees]);
}
回答by Rain
The error remains, part of my code so far, EmployeeController.php:
错误仍然存在，到目前为止我的代码的一部分，EmployeeController.php：
public function index()
{
$employees = Employee::all();
return view('employee.index', ['employees' => $employees]);
}
Employee.php
员工.php
class Employee extends Model
{
// Table name
protected $table = 'crud';
// Primary key
public $primaryKey = 'id';
}
index.blade.php
index.blade.php
<tbody>
@foreach($employees as $key => $emp)
<tr>
<td>{{ $emp->id }}</td>
</tr>
@endforeach
</tbody>
