Shulou(Shulou.com)06/02 Report--

This article will explain in detail how to achieve inter-process communication in PHP. The content of the article is of high quality, so the editor shares it for you as a reference. I hope you will have a certain understanding of the relevant knowledge after reading this article.

Signal

A signal is a system call. Usually the kill command we use is to send a signal to a process. Which signals can be viewed by running kill-l in liunx/mac. In the following example, the parent process waits five seconds to send a sigint signal to the child process. The child process captures the signal and adjusts the signal processing function to process.

Code demonstration

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.