本文实例讲述了php实现简单的守护进程创建、开启与关闭操作。分享给大家供大家参考，具体如下：
前提要安装有pcntl扩展，可通过php -m查看是否安装
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<?phpclass Daemon { private $pidfile; function __construct() { $this->pidfile = dirname(__FILE__).'/daemontest.pid'; } private function startDeamon() { if (file_exists($this->pidfile)) { echo "The file $this->pidfile exists.\n"; exit(); } $pid = pcntl_fork(); if ($pid == -1) { die('could not fork'); } else if ($pid) { echo 'start ok'; exit($pid); } else { // we are the child file_put_contents($this->pidfile, getmypid()); return getmypid(); } } private function start(){ $pid = $this->startDeamon(); while (true) { file_put_contents(dirname(__FILE__).'/test.txt', date('Y-m-d H:i:s'), FILE_APPEND); sleep(2); } } private function stop(){ if (file_exists($this->pidfile)) { $pid = file_get_contents($this->pidfile); posix_kill($pid, 9); unlink($this->pidfile); } } public function run($argv) { if($argv[1] == 'start') { $this->start(); }else if($argv[1] == 'stop') { $this->stop(); }else{ echo 'param error'; } }}$deamon = new Daemon();$deamon->run($argv); |
启动
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1
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php deamon.php start |
关闭
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1
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php deamon.php stop |
希望本文所述对大家PHP程序设计有所帮助。
原文链接：https://blog.csdn.net/fangdong88/article/details/78624659
