本文實(shí)例講述了php實(shí)現(xiàn)的簡(jiǎn)單多進(jìn)程服務(wù)器類(lèi)。分享給大家供大家參考，具體如下：

php寫(xiě)的一個(gè)簡(jiǎn)單的多進(jìn)程服務(wù)器。

<?phpclass server{  public $port;  public $ip;  protected $server;  public function __construct($ip = '0.0.0.0', $port)  {    $this->ip = $ip;    $this->port = $port;    $this->createSocket(); //創(chuàng)建一個(gè)通訊節(jié)點(diǎn)  }  public function listen($callback)  {    if(!is_callable($callback)){      throw new Exception('不是閉包，請(qǐng)傳遞正確的參數(shù)');    }    //只要我們接收到客戶(hù)端的數(shù)據(jù)，就fork一個(gè)子進(jìn)程處理    while ($client = socket_accept($this->server)) { //等待客戶(hù)端接入，返回的是客戶(hù)端的連接      $buf = socket_read($client, 1024); //讀取客戶(hù)端內(nèi)容      $pid=pcntl_fork(); //創(chuàng)建子進(jìn)程      //父進(jìn)程和子進(jìn)程都會(huì)執(zhí)行下面代碼      if ($pid == -1) {        //錯(cuò)誤處理：創(chuàng)建子進(jìn)程失敗時(shí)返回-1.        die('could not fork');      } else if ($pid) {        //父進(jìn)程會(huì)得到子進(jìn)程號(hào)，所以這里是父進(jìn)程執(zhí)行的邏輯        var_dump('父進(jìn)程',$pid);        pcntl_wait($status); //等待子進(jìn)程中斷，防止子進(jìn)程成為僵尸進(jìn)程。      } else {        //子進(jìn)程得到的$pid為0, 所以這里是子進(jìn)程執(zhí)行的邏輯。        //睡眠        if($this->checkRule("/sleep/i",$buf)){          sleep(10);          $this->response('休眠10S',$client);          socket_close($client);          return;        }        //請(qǐng)求過(guò)濾        if(empty($this->checkRule("/GET/s(.*?)/sHTTP//1.1/i",$buf))){          socket_close($client);          return;        }        //響應(yīng)        $response= call_user_func($callback,$buf); //回調(diào)$callback函數(shù)        $this->response($response,$client);        usleep(1000); //微妙為單位，1000000 微妙等于1秒        socket_close($client);        exit(); //直接退出      }    }//    while (true) {//      $client = socket_accept($this->server); //等待客戶(hù)端接入，返回的是客戶(hù)端的連接//      $buf = socket_read($client, 1024); //讀取客戶(hù)端內(nèi)容////      //睡眠//      if($this->checkRule("/sleep/i",$buf)){//        sleep(10);//        $this->response('休眠10S',$client);//        socket_close($client);//        return;//      }//      //請(qǐng)求過(guò)濾//      if(empty($this->checkRule("/GET/s(.*?)/sHTTP//1.1/i",$buf))){//        socket_close($client);//        return;//      }////      //響應(yīng)//      $response= call_user_func($callback,$buf); //回調(diào)$callback函數(shù)//      $this->response($response,$client);//      usleep(1000); //微妙為單位，1000000 微妙等于1秒//      socket_close($client);////    }    socket_close($this->server);  }  //io 復(fù)用  //epoll 模型  //多進(jìn)程  protected function createSocket()  {    $this->server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);    //bind    socket_set_option($this->server, SOL_SOCKET, SO_REUSEADDR, 1); //復(fù)用還處于 TIME_WAIT    socket_bind($this->server, $this->ip, $this->port); //細(xì)節(jié)性的處理自行完成    socket_listen($this->server); //開(kāi)始監(jiān)聽(tīng)  }  /**   * 協(xié)議過(guò)濾   * @param $reg   * @param $buf   * @return mixed   */  protected function checkRule($reg,$buf){    if(preg_match($reg,$buf,$matchs)){      return $matchs;    }    return false;  }  //請(qǐng)求處理類(lèi)  public function request($buf){    //1.只允許http協(xié)議訪問(wèn)//    if(preg_match("GET/s(.*?)/sHTTP/1.1",$buf,$matchs)){ //匹配到http協(xié)議//      return true;//    }else{//      return false;//    }    //2.過(guò)濾掉/favicon.ico    //3.獲取請(qǐng)求信息  }  protected function response($content,$client){    //返回?cái)?shù)據(jù)給客戶(hù)端,響應(yīng)處理    $string="HTTP/1.1 200 OK/r/n";    $string.="Content-Type: text/html;charset=utf-8/r/n";    $string.="Content-Length: ".strlen($content)."/r/n/r/n";    socket_write($client,$string.$content);  }}