php+html5基于websocket实现聊天室的方法_PHP教程

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

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									<?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);

									 }

									}

									?>