PHP多线程和socket可靠不可靠 或者好不好?
回复内容：
多线程可能不靠谱。PHP从一开始就不是为多线程环境而设计的，所以pthread这个扩展就需要深入PHP内核，做非常复杂的Hack编程。程序一复杂问题就来了，肯定会有很多BUG。Socket可靠不可靠，这个看人吧。PHP提供的socket系列函数都是对操作系统socket接口的封装而已，很底层。
所以对于PHP提供的socket函数，如果开发者靠谱，自然写出来的的程序就靠谱。开发者如果完全不懂什么是socket，自然写出来的程序是不靠谱的。
你可以了解一下PHP的swoole扩展，http://www.swoole.com/ php多线程一般是使用的 PHP: pthreads扩展，我实际用过这个扩展，该扩展在使用过程中会有一些问题，比如coredump，所以不建议使用
php的socket使用到没有问题，性能也不错，毕竟是c的简单那的封装。并且github上有很多开源的php socket的项目
例如：
reactphp/react · GitHub
kakserpom/phpdaemon · GitHub
walkor/workerman · GitHub
他们都是基于php 多进程 + php socket + epoll等多路IO复用
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