-
- #!/bin/env php
-
/** A example denoted muti-process application in php
- * @filename fork.php
- * @edit bbs.it-home.org
- * @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");
- }
- /** 关闭最大执行事件限制, 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
- 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($status))
- {
- echo
- "\n\n* Sub process: {$return['pid']} exited with {$status}";
- }
- }
- }
- ?>
-
复制代码
大家注意以上代码中的注释,可以帮助大家理解,也是代码的精粹所在哦。
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