PHP 5.3自动加载器 [英] PHP 5.3 autoloader

问题描述

我想使用PSR-0标准方式自动加载类，而无需添加包含，例如如何使用自动加载机制替换下面的代码:

I would like to use the PSR-0 Standard way to autoload classes without requiring to add includes, e.g. how can I replace the code below with the autoloading mechanism:

namespace Example;
use MyLib\Controller;
include_once './library/MyLib/Controller/AbstractController.php';
class MyController extends Controller\AbstractController {
[...]

因此，在上面的示例中，它表明在每个控制器中我都需要包含抽象控制器，这很疯狂……

So in the example above, it shows that in every controllers I need to include the abstract controller, which is crazy...

我在这里找到了PSR-0代码:

I have found the PSR-0 code here:

https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-0.md

https://gist.github.com/221634

但是我不知道如何在我的应用程序中实现它.

But I have no idea how I need to implement this in my application.

推荐答案

您需要在应用程序的第一个脚本中包含(包括/要求语句)带有自动加载程序代码的文件

You need include (include/require statement) the file with the autoloader code in the first script of your application

如果按照@Skpd的说明选择使用Composer的自动加载器，则在第一个PHP脚本的顶部应该有这样的代码.

If you choose for use the Composer's autoloader as @Skpd said then you should have a code like this in the top of your first PHP script.

include_once __DIR__ . '/composer_autoloader.php'

$loader = new \Composer\Autoload\ClassLoader();
$loader->add('MyLib', __DIR__.'/library/');
$loader->register();

如果您决定使用Composer作为供应商经理，则将自定义名称空间添加到composer.json并包含vendor/autoload.php

If you decide to use Composer as your vendor manager then add your custom namespaces to your composer.json and include vendor/autoload.php

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