Cakephp 3:React/zmq库名称空间 [英] Cakephp 3: React/zmq library namespace
问题描述
我正在研究此处提到的使用棘轮的基本教程 http://socketo.me/docs/推.
I am working on on the basic tutorial on using ratchet mentioned here http://socketo.me/docs/push.
我已经为该教程创建了可以完美运行的测试设置.但是，当我尝试将安装程序与CakePHP 3集成时，我遇到了问题.棘轮服务器和ZMQ服务器是独立的，就像本教程中提到的那样.只需将以下代码移入CakePHP 3控制器即可:
I have created a test setup for the tutorial that works flawlessly. However, when I am trying to integrate the setup with CakePHP 3 I am running into problems. The ratchet and ZMQ servers are independent just the way mentioned in the tutorial. Only the following piece of code needs to move into CakePHP 3 controllers:
$context = new ZMQContext();
$socket = $context->getSocket(ZMQ::SOCKET_PUSH, 'my pusher');
$socket->connect("tcp://localhost:5555");
$socket->send(json_encode($entryData));
此代码基本上将新数据提交到ZMQ队列以转发到棘轮.如果我将相同的4行放在CakePHP 3代码库之外的纯PHP文件中，那么它将起作用.当我在APP \ Controller \ SamplesController中放置相同的四行时，它说未找到类APP \ Controller \ ZMQContext.
This code basically submits new data to ZMQ queue for forwarding to ratchet. If I place the same 4 lines in a plain PHP file outside CakePHP 3 codebase it works. When I place the same four lines inside APP\Controller\SamplesController it says the class APP\Controller\ZMQContext not found.
CakePHP 3文档提到通过composer安装的供应商库将通过自动加载器自动提供.我已经通过以下命令安装了React \ ZMQ库:
CakePHP 3 docs mention that vendor libraries installed via composer will be automatically available through autoloader. I have installed React\ZMQ library via following command:
php composer require react/zmq
我尝试通过以下命名空间访问该类，但是它们都没有起作用:
I have tried accessing the class via following namespaces but none of them have worked:
ZMQContext ( Class 'App\Controller\ZMQContext' not found )
\ZMQContext ( Class 'App\Controller\ZMQ' not found )
React\ZMQ\ZMQContext ( Class 'App\Controller\React\ZMQ\ZMQContext' not found )
\React\ZMQ\ZMQContext ( Class 'React\ZMQ\ZMQContext' not found )
在PHP中可能缺少某些命名空间概念，但是我的理解是，如果通过全局命名空间在常规PHP文件中可以使用ZMQContext，那么在CakePHP 3中通过\ ZMQContext也可以使用ZMQContext.
Probably missing out on some namespace concept in PHP but my understanding is that if ZMQContext is available in a normal PHP file through global namespace, then it should also be available within CakePHP 3 via \ZMQContext.
我有以下问题:
- 如何在CakePHP 3 APP中将数据推送到ZMQ队列?
-
APP :: path()& APP :: classname()似乎仅适用于CakePHP 3应用程序中的类.如何检查特定供应商库类的路径? -
如何正确自动加载供应商库类? (我不希望要求/要求它们，因为需要对每个要通过棘轮发布数据的控制器执行此操作) - 关于通过\ CLASSNAME访问全局名称空间的假设是否错误?
- 我第二次尝试访问\ ZMQContext上的供应商库类的问题解析为App \ Controller \ ZMQ.应该在根名称空间中尝试该怎么办?
-
ZMQContext不是react/zmq库的一部分，这是否意味着它是libzmq的默认php绑定的一部分?
- How can I push data to ZMQ Queue within my CakePHP 3 APP ?
APP::path() & APP::classname() seems to work only for classes within the CakePHP 3 application. How to check path for a particular vendor library class ?How to autoload vendor library classes correctly ? (I do not wish to require/require_once them as it will needed to be done for each controller that wants to publish data via ratchet)- Is the assumption about accessing global namespace via \CLASSNAME wrong ?
- My second attempt at accessing vendor library class at \ZMQContext resolved to App\Controller\ZMQ. How is that possible when it should have attempted within root namespace ?
ZMQContext is not part of react/zmq library so does it mean it part of default php bindings for libzmq ?
推荐答案
这是一个简单的错字问题:
This was a simple typo problem:
$context = new \ZMQContext();
$socket = $context->getSocket(\ZMQ::SOCKET_PUSH, 'my pusher');
$socket->connect("tcp://localhost:5555");
$socket->send(json_encode($entryData));
第二行中的第二个名称空间规范丢失.
The second namespace specification in second line was missing.
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