php三种实现多线程类似的方法
发布:smiling 来源: PHP粉丝网 添加日期:2021-06-23 22:17:52 浏览: 评论:0
这篇文章主要介绍了php三种实现多线程类似的方法,需要的朋友可以参考下
1、curl_multi方法
当需要多线程的时候,可以用curl_multi一次性请求多个操作来完成,但curl走的是网络通信,效率与可靠性就比较差了的。
- function main(){
- $sql = "select waybill_id,order_id from waybill where status>40 order by update_time desc limit 10 ";
- $data = Yii::app()->db->createCommand($sql)->queryAll(); //yii 框架格式
- foreach ($data as $k => $v) {
- if ($k % 2 == 0) { //偶数发一个网址
- $send_data[$k]['url'] = '';
- $send_data[$k]['body'] = $v['waybill_id'];
- } else { //奇数发送另外一个网址
- $send_data[$k]['url'] = 'http://www.abc.com';
- $send_data[$k]['body']=array($v['order_id'] => array('extra' => 16));
- }
- }
- $back_data =sendMulitRequest($send_data);
- var_dump($back_data);
- }
- function sendMulitRequest($send_data){
- $params = array();
- $curl = $text = array();
- $handle = curl_multi_init();
- foreach ($data as $k => $v) {
- if (emptyempty($v['url'])) {
- $v['url'] = "http://www.xxx.com"; //if url is emptyempty,set defalut url
- }
- $reqBody = json_encode($v['body']);
- $reqStream = array(
- 'body' => $reqBody,
- );
- $encRequest = base64_encode(json_encode($reqStream));
- $params['data'] = $encRequest;
- $curl[$k] = curl_init();
- curl_setopt($curl[$k], CURLOPT_URL, $v['url']);
- curl_setopt($curl[$k], CURLOPT_POST, TRUE);
- curl_setopt($curl[$k], CURLOPT_HEADER, 0);
- curl_setopt($curl[$k], CURLOPT_POSTFIELDS, http_build_query($params));
- curl_setopt($curl[$k], CURLOPT_RETURNTRANSFER, 1);
- curl_multi_add_handle($handle, $curl[$k]);
- }
- $active = null;
- do {
- $mrc = curl_multi_exec($handle, $active);
- } while ($mrc == CURLM_CALL_MULTI_PERFORM);
- while ($active && $mrc == CURLM_OK) {
- if (curl_multi_select($handle) != -1) {
- do {
- $mrc = curl_multi_exec($handle, $active);
- } while ($mrc == CURLM_CALL_MULTI_PERFORM);
- }
- }
- foreach ($curl as $k => $v) {
- if (curl_error($curl[$k]) == "") {
- $text[$k] = (string) curl_multi_getcontent($curl[$k]);
- }
- curl_multi_remove_handle($handle, $curl[$k]);
- curl_close($curl[$k]);
- }
- curl_multi_close($handle);
- return $text;
- }
2、通过stream_socket_client 方式
- function sendStream() {
- $english_format_number = number_format($number, 4, '.', '');
- echo $english_format_number;
- exit();
- $timeout = 10;
- $result = array();
- $sockets = array();
- $convenient_read_block = 8192;
- $host = "test.local.com";
- $sql = "select waybill_id,order_id from xm_waybill where status>40 order by update_time desc limit 1 ";
- $data = Yii::app()->db->createCommand($sql)->queryAll();
- $id = 0;
- foreach ($data as $k => $v) {
- if ($k % 2 == 0) {
- $send_data[$k]['body'] = NoticeOrder::getSendData($v['waybill_id']);
- } else {
- $send_data[$k]['body'] = array($v['order_id'] => array('extra' => 16));
- }
- $data = json_encode($send_data[$k]['body']);
- $s = stream_socket_client($host . ":80", $errno, $errstr, $timeout, STREAM_CLIENT_ASYNC_CONNECT | STREAM_CLIENT_CONNECT);
- if ($s) {
- $sockets[$id++] = $s;
- $http_message = "GET /php/test.php?data=" . $data . " HTTP/1.0\r\nHost:" . $host . "\r\n\r\n";
- fwrite($s, $http_message);
- } else {
- echo "Stream " . $id . " failed to open correctly.";
- }
- }
- while (count($sockets)) {
- $read = $sockets;
- stream_select($read, $w = null, $e = null, $timeout);
- if (count($read)) {
- /* stream_select generally shuffles $read, so we need to
- compute from which socket(s) we're reading. */
- foreach ($read as $r) {
- $id = array_search($r, $sockets);
- $data = fread($r, $convenient_read_block);
- if (strlen($data) == 0) {
- echo "Stream " . $id . " closes at " . date('h:i:s') . ".<br> ";
- fclose($r);
- unset($sockets[$id]);
- } else {
- $result[$id] = $data;
- }
- }
- } else {
- /* A time-out means that *all* streams have failed
- to receive a response. */
- echo "Time-out!\n";
- break;
- }
- }
- print_r($result);
- }
3、通过多进程代替多线程
- function daemon($func_name,$args,$number){
- while(true){
- $pid=pcntl_fork();
- if($pid==-1){
- echo "fork process fail";
- exit();
- }elseif($pid){//创建的子进程
- static $num=0;
- $num++;
- if($num>=$number){
- //当进程数量达到一定数量时候,就对子进程进行回收。
- pcntl_wait($status);
- $num--;
- }
- }else{ //为0 则代表是子进程创建的,则直接进入工作状态
- if(function_exists($func_name)){
- while (true) {
- $ppid=posix_getpid();
- var_dump($ppid);
- call_user_func_array($func_name,$args);
- sleep(2);
- }
- }else{
- echo "function is not exists";
- }
- exit();
- }
- }
- }
- function worker($args){
- //do something
- }
- daemon('worker',array(1),2);
以上就是为大家分享的三种php实现多线程类似的方法,希望对大家的学习有所帮助。
Tags: php多线程
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