如下是腾讯汽车频道后台PHP工程师招聘：
工作职责：
负责腾讯新闻后台技术研发及运营；
参与项目的架构设计、评审、技术攻坚和优化；
参与系统文档的撰写、维护。
工作要求：
计算机相关专业本科以上学历，2年以上开发工作经验；
软件知识结构全面，基本功扎实；
精通C/C++，或PHP开发语言，熟悉Linux/Unix平台开发，至少熟悉一种脚本语言；
熟悉mysql数据库开发，熟悉NoSQL，如memcache/redis；
有良好的团队合作能力，善于沟通，热爱开发事业；
熟悉TCP/IP、HTTP等通信协议，具有socket网络编程和大规模并发服务器开发经验优先；
有大型网站后台开发经验和性能优化经验的优先，有移动互联网后台开发经验优先。
我就一直纳闷了。。PHP后台用socket干啥呢？？？？即时通讯？？
回复内容：
如下是腾讯汽车频道后台PHP工程师招聘：
工作职责：
负责腾讯新闻后台技术研发及运营；
参与项目的架构设计、评审、技术攻坚和优化；
参与系统文档的撰写、维护。
工作要求：
计算机相关专业本科以上学历，2年以上开发工作经验；
软件知识结构全面，基本功扎实；
精通C/C++，或PHP开发语言，熟悉Linux/Unix平台开发，至少熟悉一种脚本语言；
熟悉mysql数据库开发，熟悉NoSQL，如memcache/redis；
有良好的团队合作能力，善于沟通，热爱开发事业；
熟悉TCP/IP、HTTP等通信协议，具有socket网络编程和大规模并发服务器开发经验优先；
有大型网站后台开发经验和性能优化经验的优先，有移动互联网后台开发经验优先。
我就一直纳闷了。。PHP后台用socket干啥呢？？？？即时通讯？？
这些大公司有时会用php socket写服务器，有点像workerman这样的东东
腾讯以前用的是纯PHP写的Socket框架PSF
详见
http://rango.swoole.com/archives/78
这个招聘算是比较普通的jd了，基本功不扎实，c/c++,java这三门不熟悉，基本做不了程序员，最多是个码农。
精通C/C++，或PHP开发语言
具有socket网络编程和大规模并发服务器开发经验优先
上面写的不一定需要你用, 只是问问你有没有那个阅历
因为有可能需要用 PHP 调用更后台的服务, 而这些服务正好只提供 socket 接口
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