PHP uses the process as the Daemon. php daemon _ PHP Tutorial

PHP uses the process as the Daemon, and the php process daemon. PHP uses the process as the Daemon. The php process daemon describes how PHP uses the process as the daemon. Share it with you for your reference. The specific analysis is as follows: PHP uses the process as the Daemon, and php process daemon

This example describes how PHP uses a process as a daemon. Share it with you for your reference. The specific analysis is as follows:

Usage of posix_setsid () in php

The document explains "Make the current process a session leader"

Reference: http://linux.die.net/man/2/setsid

This means that the process that calls this function between a process Group (parent process and child process) will be elected as the leader of the process Group.

So the way to make a process a daemon is:

1 fork generates a sub-process

2 in the sub-process posix_setsid ()

3. exit the parent process.

This document provides an example:

<?php  $pid = pcntl_fork(); // fork  if ($pid < 0)    exit;  else if ($pid) // parent    exit;  else { // child    $sid = posix_setsid();    if ($sid < 0)      exit;    for($i = 0; $i <= 60; $i++) {//do something for 5 minutes      sleep(5);    }  }?>

I hope this article will help you with php programming.

In this example, PHP uses the process as the daemon. Share it with you for your reference. The specific analysis is as follows :...