PHP编程中尝试程序并发的几种方式总结

<?php// build the individual requests as above, but do not execute them$ch_1 = curl_init('//www.VeVB.COm/');$ch_2 = curl_init('//www.VeVB.COm/');curl_setopt($ch_1, CURLOPT_RETURNTRANSFER, true);curl_setopt($ch_2, CURLOPT_RETURNTRANSFER, true);// build the multi-curl handle, adding both $ch$mh = curl_multi_init();curl_multi_add_handle($mh, $ch_1);curl_multi_add_handle($mh, $ch_2);// execute all queries simultaneously, and continue when all are complete$running = null;do {  curl_multi_exec($mh, $running);  $ch = curl_multi_select($mh);  if($ch !== 0){    $info = curl_multi_info_read($mh);    if($info){      var_dump($info);      $response_1 = curl_multi_getcontent($info['handle']);      echo "$response_1 /n";      break;    }  }} while ($running > 0);//close the handlescurl_multi_remove_handle($mh, $ch_1);curl_multi_remove_handle($mh, $ch_2);curl_multi_close($mh);

<?php$client = new swoole_client(SWOOLE_SOCK_TCP, SWOOLE_SOCK_ASYNC);//设置事件回调函数$client->on("connect", function($cli) {  $req = "GET / HTTP/1.1/r/n  Host: www.VeVB.COm/r/n  Connection: keep-alive/r/n  Cache-Control: no-cache/r/n  Pragma: no-cache/r/n/r/n";  for ($i=0; $i < 3; $i++) {    $cli->send($req);  }});$client->on("receive", function($cli, $data){  echo "Received: ".$data."/n";  exit(0);  $cli->sleep(); // swoole >= 1.7.21});$client->on("error", function($cli){  echo "Connect failed/n";});$client->on("close", function($cli){  echo "Connection close/n";});//发起网络连接$client->connect('183.207.95.145', 80, 1);

<?php$workers = [];$worker_num = 3;//创建的进程数$finished = false;$lock = new swoole_lock(SWOOLE_MUTEX);for($i=0;$i<$worker_num ; $i++){  $process = new swoole_process('process');  //$process->useQueue();  $pid = $process->start();  $workers[$pid] = $process;}foreach($workers as $pid => $process){  //子进程也会包含此事件  swoole_event_add($process->pipe, function ($pipe) use($process, $lock, &$finished) {    $lock->lock();    if(!$finished){      $finished = true;      $data = $process->read();      echo "RECV: " . $data.PHP_EOL;    }    $lock->unlock();  });}function process(swoole_process $process){  $response = 'http response';  $process->write($response);  echo $process->pid,"/t",$process->callback .PHP_EOL;}for($i = 0; $i < $worker_num; $i++) {  $ret = swoole_process::wait();  $pid = $ret['pid'];  echo "Worker Exit, PID=".$pid.PHP_EOL;}

<?phpclass Foo extends Stackable {  public $url;  public $response = null;  public function __construct(){    $this->url = '//www.VeVB.COm';  }  public function run(){}}class Process extends Worker {  private $text = "";  public function __construct($text,$object){    $this->text = $text;    $this->object = $object;  }  public function run(){    while (is_null($this->object->response)){      print " Thread {$this->text} is running/n";      $this->object->response = 'http response';      sleep(1);    }  }}$foo = new Foo();$a = new Process("A",$foo);$a->start();$b = new Process("B",$foo);$b->start();echo $foo->response;

<?php  class AsyncServer {   protected $handler;   protected $socket;   protected $tasks = [];   protected $timers = [];    public function __construct(callable $handler) {     $this->handler = $handler;      $this->socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);     if(!$this->socket) {       die(socket_strerror(socket_last_error())."/n");     }     if (!socket_set_nonblock($this->socket)) {       die(socket_strerror(socket_last_error())."/n");     }     if(!socket_bind($this->socket, "0.0.0.0", 1234)) {       die(socket_strerror(socket_last_error())."/n");     }   }    public function Run() {     while (true) {       $now = microtime(true) * 1000;       foreach ($this->timers as $time => $sockets) {         if ($time > $now) break;         foreach ($sockets as $one) {           list($socket, $coroutine) = $this->tasks[$one];           unset($this->tasks[$one]);           socket_close($socket);           $coroutine->throw(new Exception("Timeout"));         }         unset($this->timers[$time]);       }        $reads = array($this->socket);       foreach ($this->tasks as list($socket)) {         $reads[] = $socket;       }       $writes = NULL;       $excepts= NULL;       if (!socket_select($reads, $writes, $excepts, 0, 1000)) {         continue;       }        foreach ($reads as $one) {         $len = socket_recvfrom($one, $data, 65535, 0, $ip, $port);         if (!$len) {           //echo "socket_recvfrom fail./n";           continue;         }         if ($one == $this->socket) {           //echo "[Run]request recvfrom succ. data=$data ip=$ip port=$port/n";           $handler = $this->handler;           $coroutine = $handler($one, $data, $len, $ip, $port);           if (!$coroutine) {             //echo "[Run]everything is done./n";             continue;           }           $task = $coroutine->current();           //echo "[Run]AsyncTask recv. data=$task->data ip=$task->ip port=$task->port timeout=$task->timeout/n";           $socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);           if(!$socket) {             //echo socket_strerror(socket_last_error())."/n";             $coroutine->throw(new Exception(socket_strerror(socket_last_error()), socket_last_error()));             continue;           }           if (!socket_set_nonblock($socket)) {             //echo socket_strerror(socket_last_error())."/n";             $coroutine->throw(new Exception(socket_strerror(socket_last_error()), socket_last_error()));             continue;           }           socket_sendto($socket, $task->data, $task->len, 0, $task->ip, $task->port);           $deadline = $now + $task->timeout;           $this->tasks[$socket] = [$socket, $coroutine, $deadline];           $this->timers[$deadline][$socket] = $socket;         } else {           //echo "[Run]response recvfrom succ. data=$data ip=$ip port=$port/n";           list($socket, $coroutine, $deadline) = $this->tasks[$one];           unset($this->tasks[$one]);           unset($this->timers[$deadline][$one]);           socket_close($socket);           $coroutine->send(array($data, $len));         }       }     }   } }  class AsyncTask {   public $data;   public $len;   public $ip;   public $port;   public $timeout;    public function __construct($data, $len, $ip, $port, $timeout) {     $this->data = $data;     $this->len = $len;     $this->ip = $ip;     $this->port = $port;     $this->timeout = $timeout;   } }  function AsyncSendRecv($req_buf, $req_len, $ip, $port, $timeout) {   return new AsyncTask($req_buf, $req_len, $ip, $port, $timeout); }  function RequestHandler($socket, $req_buf, $req_len, $ip, $port) {   //echo "[RequestHandler] before yield AsyncTask. REQ=$req_buf/n";   try {     list($rsp_buf, $rsp_len) = (yield AsyncSendRecv($req_buf, $req_len, "127.0.0.1", 2345, 3000));   } catch (Exception $ex) {     $rsp_buf = $ex->getMessage();     $rsp_len = strlen($rsp_buf);     //echo "[Exception]$rsp_buf/n";   }   //echo "[RequestHandler] after yield AsyncTask. RSP=$rsp_buf/n";   socket_sendto($socket, $rsp_buf, $rsp_len, 0, $ip, $port); }  $server = new AsyncServer(RequestHandler); $server->Run();  ?>