//1、返回数据到前端$rs = ['code' => 0, 'msg' => 'ok', 'data' => true];set_time_limit(0);ob_end_clean();header("Connection: close");header("HTTP/1.1 200 OK");header("Content-Type: application/json;charset=utf-8");// 如果前端要的是json则添加，默认是返回的html/textob_start();echo json_encode($rs);// 输出结果到前端$size = ob_get_length();header("Content-Length: $size");ob_end_flush();flush();if (function_exists("fastcgi_finish_request")) { // yii或yaf默认不会立即输出，加上此句即可（前提是用的fpm）fastcgi_finish_request(); // 响应完成, 立即返回到前端,关闭连接}//2、继续后台执行ignore_user_abort(true);set_time_limit(60);$interval = 5;$stop = 1;do {if($stop == 10 ) break;file_put_contents('phpzixue.txt',' Current Time: '.time().' Stop: '.$stop.PHP_EOL,FILE_APPEND);$stop++;sleep( $interval );} while(true);