php swoole多进程/多线程用法示例【基于php7nts版】

<?php/** * 创建多进程 */$worker_num     = 6;    // 默认进程数$workers       = [];    // 进程保存$redirect_stdout  = false;  // 重定向输出 ; 这个参数用途等会我们看效果for($i = 0; $i < $worker_num; $i++){  $process = new swoole_process('callback_function', $redirect_stdout);  // 启用消息队列 int $msgkey = 0, int $mode = 2  $process->useQueue(0, 2);  $pid = $process->start();  // 管道写入内容  $process->write('index:'.$i);  $process->push('进程的消息队列内容');  // 将每一个进程的句柄存起来  $workers[$pid] = $process;}/** * 子进程回调 * @param swoole_process $worker [description] * @return [type]         [description] */function callback_function(swoole_process $worker){  $recv = $worker->pop();  echo "子输出主内容: {$recv}".PHP_EOL;  //get guandao content  $recv = $worker->read();  $result = doTask();  echo PHP_EOL.$result.'==='.$worker->pid.'==='.$recv;  $worker->exit(0);}/** * 监控/回收子进程 */while(1){  $ret = swoole_process::wait();  if ($ret){// $ret 是个数组 code是进程退出状态码，    $pid = $ret['pid'];    echo PHP_EOL."Worker Exit, PID=" . $pid . PHP_EOL;  }else{    break;  }}/** * doTask * @return [type] [description] */function doTask(){  sleep(2);  return true;}