PHP CLI模式下的多进程应用
本文地址:http://tongxinmao.com/Article/Detail/id/13
#!/bin/env php <?php /** A example denoted muti-process application in php * @filename fork.php * @touch date Wed 10 Jun 2009 10:25:51 PM CST * @author Laruence<laruence@baidu.com> * @license http://www.zend.com/license/3_0.txt PHP License 3.0 * @version 1.0.0 */ /** 确保这个函数只能运行在SHELL中 */ if (substr(php_sapi_name(), 0, 3) !== 'cli') { die("This Programe can only be run in CLI mode"); } /** 关闭最大执行时间限制, 在CLI模式下, 这个语句其实不必要 */ set_time_limit(0); $pid = posix_getpid(); //取得主进程ID $user = posix_getlogin(); //取得用户名 echo <<<EOD USAGE: [command | expression] input php code to execute by fork a new process input quit to exit Shell Executor version 1.0.0 by laruence EOD; while (true) { $prompt = "\n{$user}$ "; $input = readline($prompt); readline_add_history($input); if ($input == 'quit') { break; } process_execute($input . ';'); } exit(0); function process_execute($input) { $pid = pcntl_fork(); //创建子进程 if ($pid == 0) {//子进程 $pid = posix_getpid(); echo "* Process {$pid} was created, and Executed:\n\n"; eval($input); //解析命令 exit; } else {//主进程 $pid = pcntl_wait($status, WUNTRACED); //取得子进程结束状态 if (pcntl_wifexited($status)) { echo "\n\n* Sub process: {$pid} exited with {$status}"; } } }
上一篇:利用BBP公式来计算Pi圆周率的PHP代码
下一篇:PHP守护进程类 -- KalonDaemon