laravel 5中找不到助手类

Question

I have create Helpers folder inside app, then I have created php file amchelpers.php ---> app/Helpers/amchelpers.php

amchelpers.php code:

<?php namespace App;

   class AmcHelper {
      static function displayString($string){
          return $string;
      }
  }

then added these lines to composer.json

"files": [
       "app/Helpers/amchelpers.php"
    ]

then run this command:

composer dump-autoload

then added 'Helper' => app_path() . '\\Helpers\\AmcHelper' to aliases array in config/app.php file.

in my controller I have below action (this action defined in route.php):

use Helper;

class UserController extends Controller {
   public function displayMyString(){  
         echo Helper::displayString('Hello');
   }
}

when run the page http://localhost:8080/easy_marketing/public/displayMyString

I Got:

ErrorException in compiled.php line 6367: Class 'C:\wamp\www\easy_marketing\app\Helpers\AmcHelper' not found

Answer 1

you have written user Helper instead of use Helper

or

another way to achieve this is

Laravel 5 App directory is autoloaded by default with its folder, what you have to take care is add namespace followed by directory name,

so directory structure is App --> Helpers

so your name space must include App\\Helpers

try following code

<?php namespace App\Helpers;

   class AmcHelper {
      static function displayString($string){
          return $string;
      }
  }

and when you are using this class in another class write this after namespace declaration

use App\Helpers\AmcHelper as Helper;


class UserController extends Controller {
   public function displayMyString(){  
         echo Helper::displayString('Hello');
   }
}