php+html5基于websocket实现聊天室的方法

发布:smiling　来源: PHP粉丝网　添加日期：2021-06-13 13:32:08　浏览: 评论：0　

这篇文章主要介绍了php+html5基于websocket实现聊天室的方法,实例分析了php结合html5的websocket通讯的使用技巧,具有一定参考借鉴价值,需要的朋友可以参考下

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);

}

}

?>