I am new to WebSocket world and even after a week, I still could not find how to use it with PHP without using any 3rd Party Library. Or not sure if it is even possible.
I have 3 questions,
1) Do we must need to use some 3rd Party APIs or Libraries like Ratchet, PHP-Push-WebSocket or PHP WebSocket to enable PHP to communicate over WebSocket protocol?
2) If your answer to above question is yes then what is the advantage/purpose of using Apache's mod_proxy_wstunnel?
3) If I use any PHP WebSocket 3rd Party Library, then do I still need to enable and use Apache's mod_proxy_wstunnel? If No, then again what is the purpose of Apache's mod_proxy_wstunnel?
I went through this Using go-websocket behind Apache mod_proxy_wstunnel. In this question, the OP has indicated some go-websocket but unfortunately the link is giving 404 Error and hence I cannot understand if the user has used any 3rd Party API.
Any help would be highly appreciated. Thanks in advance.
1 Answers
Answers 1
PHP is not created for WS. Of course you can do this, but it is full of while (true) and fsock_open [*]. And you have to have access to the shell to run the WS-server with php-cgi. (usually)
Choose a language that supports threads / asynchronous communication. Now on the top is Node.js. In addition, better use dedicated libraries to support older browsers, etc. If you are thinking about alternatives to ajax then you can use socket.io. If you want to create one-to-all communication (eg chat, broadcast messaging), go one step further and use one of the Bayeux implementations, for example: Faye.
The mod_proxy_wstunnel extension adds an extra layer to the WS server. Depending on the configuration, it can support DDoS, queue, load-balancing, local port swapping, and https support. But better use this for nginx.
So, for test you don't need mod_proxy_wstunnel, and on production, you should add an extra layer of security, eg NGINX ws tunelling.
[*] Sorry, I made some mistakes. PHP has native support for WebSockets. That content is going to set you negatively to WS in PHP.
Websockets are events, and PHP is poorly managed with it.
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