Speaking of which, we have to talk about the difference between synchronous I/O and asynchronous i/o. In some cases, synchronization and asynchrony, blocking and non-blocking are easily mixed up. In fact, they are completely different, and the objects they modify are also different. Blocking and non-blocking refer to whether the process needs to wait if ..
[Original Address:https://blog.ti-node.com/blog …] To better understand socket programming, there is a link that cannot be bypassed is io.In Linux, everything is a file. What do you actually want files for? Isn’t it just reading and writing? Therefore, the essence of this sentence is “IO is king”. Use php fopen to open files and close files ..