在 Laravel 4 中使用命名空间
我是 Laravel 的新手，通常使用 PHP 命名空间.在我决定制作一个名为 File 的模型之前，我没有遇到任何问题.我将如何正确地进行命名空间以便我可以使用我的 File 模型类?
I'm new to Laravel and using PHP namespaces in general. I didn't run into any problems until I decided to make a model named File. How would I go about namespacing correctly so I can use my File model class?
文件是 app/controllers/FilesController.php 和 app/models/File.php.我正在尝试在 FilesController.php 中创建一个新的 File.
The files are app/controllers/FilesController.php and app/models/File.php. I am trying to make a new File in FilesController.php.
推荐答案
一旦掌握了命名空间的窍门，命名空间就非常容易了.
Namespacing is pretty easy once you get that hang of it.
举个例子:
app/models/File.php
namespace AppModels;
class File {
public function someMethodThatGetsFiles()
{
}
}
app/controllers/FileController.php
namespace AppControllers;
use AppModelsFile;
class FileController {
public function someMethod()
{
$file = new File();
}
}
声明命名空间:
namespace AppControllers;
请记住，一旦您将类放入命名空间以访问任何 PHP 的内置类，您需要从根命名空间调用它们.例如:$stdClass = new stdClass(); 将变为 $stdClass = new stdClass();(见 )
Remember, once you've put a class in a Namespace to access any of PHP's built in classes you need to call them from the Root Namespace. e.g: $stdClass = new stdClass(); will become $stdClass = new stdClass(); (see the )
导入"其他命名空间:
use AppModelsFile;
这允许您随后使用没有命名空间前缀的 File 类.
This Allows you to then use the File class without the Namespace prefix.
您也可以直接调用:
$file = new AppModelsFile();
但最好将其放在 use 语句的顶部，因为这样您就可以查看所有文件的依赖项，而无需扫描代码.
But it's best practice to put it at the top in a use statement as you can then see all the file's dependencies without having to scan the code.
完成后，您需要让他们运行 composer dump-autoload 以更新 Composer 的自动加载功能，以考虑您新添加的类.
Once that's done you need to them run composer dump-autoload to update Composer's autoload function to take into account your newly added Classes.
请记住，如果您想通过 URL 访问 FileController，那么您需要定义一个路由并指定完整的命名空间，如下所示:
Remember, if you want to access the FileController via a URL then you'll need to define a route and specify the full namespace like so:
Route::get('file', 'App\Controllers\FileController@someMethod');
这会将所有 GET/file 请求定向到控制器的 someMethod()
Which will direct all GET /file requests to the controller's someMethod()
查看 Namespaces 上的 PHP 文档，Nettut 的文档是这篇文章
Take a look at the PHP documentation on Namespaces and Nettut's is always a good resource with this article
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