尝试使用作曲家自动加载wordpress插件时“找不到类”

问题描述：

I'm writing a plugin and trying to use composer to auto load my classes, but I'm unable to get it working. I know there are a lot of questions on this topic but nothing seems to work for me.

directory structure:

plugin-name
- classes
  - Class_Name.php
- vendor
- plugin-name.php
- composer.json
- composer.lock

composer.json file:

{
    "require": {
        "katzgrau/klogger": "dev-master"
    },
    "autoload": {
        "psr-4": { "Foo\\": "classes" }
    }
}

plugin-name.php file:

namespace Plugins_Main;

use Foo\Class_Name;

require 'vendor/autoload.php';

class Plugin_Name_Bootstrap{
    public static function run() {
        Class_Name::instance();
    }
 }
add_action('plugins_loaded', array('Plugins_Main\Plugin_Name_Bootstrap', 'run'));

Class_Name.php file:

namespace Foo;

class Class_Name{
    protected static $_instance = null;

    public static function instance(){
        if ( self::$_instance === null ) {
            self::$_instance = new self();
        }

        return self::$_instance;
    }
}

According to the docs this autoloading should work, but I'm still getting

Class 'Foo\Class_Name' not found

I thought maybe it related somehow to the fact that I'm trying to initialize "Class_Name" in plugins_loaded hook, But why would that matter if I'm require vendor/autoload.php much earlier?

我正在编写插件并尝试使用composer自动加载我的类，但我无法获得它工作。我知道关于这个主题有很多问题，但似乎没有什么对我有用。 p>

目录结构： p>

插件名称 p>

类

Class_Name.php LI> UL> LI >
供应商 LI>
插件-name.php LI>
composer.json LI>

composer.lock LI> \ n ul> li> ul>

composer.json strong>文件： p>

  {\  n“require”：{
“katzgrau / klogger”：“dev-master”
}，
“autoload”：{
“psr-4”：{“Foo \\”：“classes”} \  n} 
} 
  code>  pre> 
 
   plugin-name.php  strong>文件： p> 
 
 
   namespace Plugins_Main; 
 
use Foo \ Class_Name; 
 
require'porpors / autoload.php'; 
 
class Plugin_Name_Bootstrap {
 public static function run（）{
 Class_Name :: instance（）; 
}  
} 
add_action（'plugins_loaded'，array（'Plugins_Main \ Plugin_Name_Bootstrap'，'run'））; 
  code>  pre> 
 
   Class_Name.php  strong  > file： p> 
 
 
  namespace Foo; 
 
class Class_Name {
  protected static $ _instance = null; 
 
 public static function instance（）{
 if（self :: $ _ instance === null）{
 self :: $ _ instance = new self（）; 
} \  n 
返回self :: $ _ instance; 
} 
} 
  code>  pre> 
 
 根据文档，这个自动加载应该有效，但我还是得到了  p> 
 
 
 
 未找到类'Foo \ Class_Name' p> 
  blockquote> 
 
 
我认为它可能与某种事实有关 我试图在plugins_loaded钩子中初始化“Class_Name”，但是如果我之前需要vendor / autoload.php那么为什么会这么重要？ p> 
  div>

答

Needed to require autoload.php with __DIR__:

from

require 'vendor/autoload.php';

require __DIR__  . '/vendor/autoload.php';

Thanks Damian Dziaduch for the answer.

尝试使用作曲家自动加载wordpress插件时“找不到类”

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