辅助函数未加载 laravel 5 - 调用未定义的函数
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helper functions not loading laravel 5 - Call to undefined function
提问by n1k41l
I've been having a problem loading my helpers file in Laravel 5 and calling the functions from views. The below is a quick overview of how I attempted to setup helpers within my L5 Project.
我在 Laravel 5 中加载我的帮助文件并从视图调用函数时遇到问题。下面是我如何尝试在我的 L5 项目中设置助手的快速概述。
- Created a helpers.php file within app/Http;
The helpers file contains a basic function, to produce the page title.
public function full_title($title) { $base_title = 'Social Tracking Application'; if (isset($title) && $title != ''){ $comp_title = $title . " | " . $base_title; } else { $comp_title = $base_title; } return $comp_title; }Updated composer.json to autoload the new helpers file.
"autoload": { "classmap": [ "database" ], "psr-4": { "App\": "app/" }, "files":["app/Http/helpers.php"]},
Run composer dump-autoload from the terminal.
- 在 app/Http 中创建了一个 helpers.php 文件；
helpers 文件包含一个基本功能，用于生成页面标题。
public function full_title($title) { $base_title = 'Social Tracking Application'; if (isset($title) && $title != ''){ $comp_title = $title . " | " . $base_title; } else { $comp_title = $base_title; } return $comp_title; }更新了 composer.json 以自动加载新的帮助文件。
"autoload": { "classmap": [ "database" ], "psr-4": { "App\": "app/" }, "files":["app/Http/helpers.php"]},
从终端运行 composer dump-autoload。
After these steps I was under the impression that I could use my helper from views and controllers. So I placed a call to my new helper function within my main layout view by using the following:
在这些步骤之后，我的印象是我可以从视图和控制器中使用我的助手。因此，我使用以下命令在主布局视图中调用了新的辅助函数：
<title> full_title($title) </title>
However when I navigate to any page I receive a FatalErrorMessage Call to Undefined Function full_title. (note the message is usually in the title bar so I move it to a body tag to view the error message).
但是，当我导航到任何页面时，我会收到一个 FatalErrorMessage Call to Undefined Function full_title。（请注意，消息通常位于标题栏中，因此我将其移至正文标记以查看错误消息）。
I can't figure out what it is I'm doing wrong here, I've seen other examples of people using custom helper files in a similar manner but mine just doesn't seem to work am I missing something obvious?
我不知道我在这里做错了什么，我见过其他人以类似方式使用自定义帮助文件的例子，但我的似乎不起作用，我错过了一些明显的东西吗？
I'm running this of Homestead.
我正在运行 Homestead 的这个。
full code base: https://github.com/n1k41l/SocialTrak/tree/middleware-currentUser
完整代码库：https: //github.com/n1k41l/SocialTrak/tree/middleware-currentUser
回答by n1k41l
I've managed to solve the problem myself, the issue was that I created my Helpers file as a php class. The helpers file should only be a php file - with functions not a class with functions... (obvious mistake once I found it :S).
我已经设法自己解决了这个问题，问题是我将 Helpers 文件创建为 php 类。helpers 文件应该只是一个 php 文件 - 带有函数而不是带有函数的类......（一旦我发现它就明显错误：S）。
回答by Ben Wilson
You may need to use the class name in front of the function when calling it in your view or controller, e.g.:
在视图或控制器中调用函数时，您可能需要在函数前面使用类名，例如：
Helper::my_function()
回答by Xedecimal
I found I had this problem too at some point, in which I had put my helpers under app/Helpers/functions.php instead of app/Http/helpers.php. Moving them to the latter made everything start working fine.
我发现我在某个时候也有这个问题，我把我的助手放在 app/Helpers/functions.php 而不是 app/Http/helpers.php。将它们移到后者使一切开始正常工作。
