php+html5基于websocket实现聊天室的方法

本文实例讲述了php+html5基于websocket实现聊天室的方法。分享给大家供大家参考。具体如下：

html5的websocket 实现了双向通信，折腾了几天弄了个聊天室，分享给大家

    <?php
    error_reporting(E_ALL);
    ob_implicit_flush();
    $sk=new Sock('127.0.0.1',8000);
    $sk->run();
    class Sock{
     public $sockets;
     public $users;
     public $master;
     public function __construct($address, $port){
      $this->master=$this->WebSocket($address, $port);
      $this->sockets=array('s'=>$this->master);
     }
     function run(){
      while(true){
       $changes=$this->sockets;
       socket_select($changes,$write=NULL,$except=NULL,NULL);
       foreach($changes as $sock){
        if($sock==$this->master){
         $client=socket_accept($this->master);
         //$key=uniqid();
         $this->sockets[]=$client;
         $this->users[]=array(
          'socket'=>$client,
          'shou'=>false
         );
        }else{
         $len=socket_recv($sock,$buffer,2048,0);
         $k=$this->search($sock);
         if($len<7){
          $name=$this->users[$k]['ming'];
          $this->close($sock);
          $this->send2($name,$k);
          continue;
         }
         if(!$this->users[$k]['shou']){
          $this->woshou($k,$buffer);
         }else{
          $buffer = $this->uncode($buffer);
          $this->send($k,$buffer);
         }
        }
       }
      }
     }
     function close($sock){
      $k=array_search($sock, $this->sockets);
      socket_close($sock);
      unset($this->sockets[$k]);
      unset($this->users[$k]);
      $this->e("key:$k close");
     }
     function search($sock){
      foreach ($this->users as $k=>$v){
       if($sock==$v['socket'])
       return $k;
      }
      return false;
     }
     function WebSocket($address,$port){
      $server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
      socket_set_option($server, SOL_SOCKET, SO_REUSEADDR, 1);
      socket_bind($server, $address, $port);
      socket_listen($server);
      $this->e('Server Started : '.date('Y-m-d H:i:s'));
      $this->e('Listening on : '.$address.' port '.$port);
      return $server;
     }
     function woshou($k,$buffer){
      $buf = substr($buffer,strpos($buffer,'Sec-WebSocket-Key:')+18);
      $key = trim(substr($buf,0,strpos($buf,"\r\n")));
      $new_key = base64_encode(sha1($key."258EAFA5-E914-47DA-95CA-C5AB0DC85B11",true));
      $new_message = "HTTP/1.1 101 Switching Protocols\r\n";
      $new_message .= "Upgrade: websocket\r\n";
      $new_message .= "Sec-WebSocket-Version: 13\r\n";
      $new_message .= "Connection: Upgrade\r\n";
      $new_message .= "Sec-WebSocket-Accept: " . $new_key . "\r\n\r\n";
      socket_write($this->users[$k]['socket'],$new_message,strlen($new_message));
      $this->users[$k]['shou']=true;
      return true;
     }
     function uncode($str){
      $mask = array(); 
      $data = ''; 
      $msg = unpack('H*',$str); 
      $head = substr($msg[1],0,2); 
      if (hexdec($head{1}) === 8) { 
       $data = false; 
      }else if (hexdec($head{1}) === 1){ 
       $mask[] = hexdec(substr($msg[1],4,2)); 
       $mask[] = hexdec(substr($msg[1],6,2)); 
       $mask[] = hexdec(substr($msg[1],8,2)); 
       $mask[] = hexdec(substr($msg[1],10,2)); 
       $s = 12; 
       $e = strlen($msg[1])-2; 
       $n = 0; 
       for ($i=$s; $i<= $e; $i+= 2) { 
        $data .= chr($mask[$n%4]^hexdec(substr($msg[1],$i,2)));
        $n++; 
       } 
      } 
      return $data;
     }
     function code($msg){
      $msg = preg_replace(array('/\r$/','/\n$/','/\r\n$/',), '', $msg);
      $frame = array(); 
      $frame[0] = '81'; 
      $len = strlen($msg); 
      $frame[1] = $len<16?'0'.dechex($len):dechex($len); 
      $frame[2] = $this->ord_hex($msg); 
      $data = implode('',$frame); 
      return pack("H*", $data); 
     }
     function ord_hex($data) { 
      $msg = ''; 
      $l = strlen($data); 
      for ($i= 0; $i<$l; $i++) { 
       $msg .= dechex(ord($data{$i})); 
      } 
      return $msg; 
     }
     function send($k,$msg){
      /*$this->send1($k,$this->code($msg),'all');*/
      parse_str($msg,$g);
      $this->e($msg);
      $ar=array();
      if($g['type']=='add'){
       $this->users[$k]['ming']=$g['ming'];
       $ar['add']=true;
       $ar['nrong']='欢迎'.$g['ming'].'加入！';
       $ar['users']=$this->getusers();
       $key='all';
      }else if($g['type']=='ltiao'){
       $ar['nrong']=$g['nr'];
       $key=$g['key'];
      }
      $msg=json_encode($ar);
      $this->e($msg);
      $msg = $this->code($msg);
      $this->send1($k,$msg,$key);
      //socket_write($this->users[$k]['socket'],$msg,strlen($msg));
     }
     function getusers(){
      $ar=array();
      foreach($this->users as $k=>$v){
       $ar[$k]=$v['ming'];
      }
      return $ar;
     }
     function send1($k,$str,$key='all'){
      if($key=='all'){
       foreach($this->users as $v){
        socket_write($v['socket'],$str,strlen($str));
       }
      }else{
       if($k!=$key)
       socket_write($this->users[$k]['socket'],$str,strlen($str));
       socket_write($this->users[$key]['socket'],$str,strlen($str));
      }
     }
     function send2($ming,$k){
      $ar['remove']=true;
      $ar['removekey']=$k;
      $ar['nrong']=$ming.'退出聊天室';
      $str = $this->code(json_encode($ar));
      $this->send1(false,$str,'all');
     }
     function e($str){
      $path=dirname(__FILE__).'/log.txt';
      $str=$str."\n";
      error_log($str,3,$path);
      echo iconv('utf-8','gbk//IGNORE',$str);
     }
    }
    ?>

希望本文所述对大家的php程序设计有所帮助。