在 Laravel 5 中找不到助手类
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helper class not found in laravel 5
提问by Ayman Hussein
I have create Helpers folder inside app, then I have created php file amchelpers.php ---> app/Helpers/amchelpers.php
我在应用程序中创建了 Helpers 文件夹，然后我创建了 php 文件 amchelpers.php ---> app/Helpers/amchelpers.php
amchelpers.php code:
amchelpers.php 代码：
<?php namespace App;
class AmcHelper {
static function displayString($string){
return $string;
}
}
then added these lines to composer.json
然后将这些行添加到 composer.json
"files": [
"app/Helpers/amchelpers.php"
]
then run this command:
然后运行这个命令：
composer dump-autoload
then added 'Helper' => app_path() . '\Helpers\AmcHelper' to aliases array in config/app.php file.
然后添加 'Helper' => app_path() 。'\Helpers\AmcHelper' 到 config/app.php 文件中的别名数组。
in my controller I have below action (this action defined in route.php):
在我的控制器中，我有以下操作（此操作在 route.php 中定义）：
use Helper;
class UserController extends Controller {
public function displayMyString(){
echo Helper::displayString('Hello');
}
}
when run the page http://localhost:8080/easy_marketing/public/displayMyString
运行页面时http://localhost:8080/easy_marketing/public/displayMyString
I Got:
我有：
ErrorException in compiled.php line 6367: Class 'C:\wamp\www\easy_marketing\app\Helpers\AmcHelper' not found
回答by Anand Patel
you have written user Helperinstead of use Helper
你写了user Helper而不是use Helper
or
或者
another way to achieve this is
实现这一目标的另一种方法是
Laravel 5 App directory is autoloaded by default with its folder, what you have to take care is add namespace followed by directory name,
Laravel 5 App 目录默认自动加载其文件夹，你需要注意的是添加命名空间，然后是目录名，
so directory structure is App --> Helpers
所以目录结构是 App --> Helpers
so your name space must include App\Helpers
所以你的名字空间必须包含 App\Helpers
try following code
尝试以下代码
<?php namespace App\Helpers;
class AmcHelper {
static function displayString($string){
return $string;
}
}
and when you are using this class in another class write this after namespace declaration
当你在另一个类中使用这个类时，在命名空间声明之后写这个
use App\Helpers\AmcHelper as Helper;
class UserController extends Controller {
public function displayMyString(){
echo Helper::displayString('Hello');
}
}
