本文实例讲述了PHP实现websocket通信的方法。分享给大家供大家参考，具体如下：
执行方法:
首先先修改server.php与index.html的ip
通过命令行执行 [php路径]/php.exe "[文件路径]/server.php"
然后通过浏览器打开index.html
server.php
<?phpinclude 'websocket.class.php';$config=array( 'address'=>'192.168.0.200', 'port'=>'8000', 'event'=>'WSevent',//回调函数的函数名 'log'=>true,);$websocket = new websocket($config);$websocket->run();function WSevent($type,$event){ global $websocket; if('in'==$type){ $websocket->log('客户进入id:'.$event['k']); }elseif('out'==$type){ $websocket->log('客户退出id:'.$event['k']); }elseif('msg'==$type){ $websocket->log($event['k'].'消息:'.$event['msg']); roboot($event['sign'],$event['msg']); }}function roboot($sign,$t){ global $websocket; switch ($t) { case 'hello': $show='hello,GIt @ OSC'; break; case 'name': $show='Robot'; break; case 'time': $show='当前时间:'.date('Y-m-d H:i:s'); break; case '再见': $show='( ^_^ )/~~拜拜'; $websocket->write($sign,'Robot:'.$show); $websocket->close($sign); return; break; case '天王盖地虎': $array = array('小鸡炖蘑菇','宝塔震河妖','粒粒皆辛苦'); $show = $array[rand(0,2)]; break; default: $show='( ⊙o⊙?)不懂,你可以尝试说:hello,name,time,再见,天王盖地虎.'; } $websocket->write($sign,'Robot:'.$show);}?>index.html
<!doctype html><html><head><meta charset="utf-8"><title>websocket_TEST</title></head><body><textarea class="log" style="width: 100%; height: 500px;">=======websocket======</textarea><input type="button" value="连接" onClick="link()"><input type="button" value="断开" onClick="dis()"><input type="text" id="text"><input type="button" value="发送" onClick="send()"><script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script><script>function link(){ var url='ws://192.168.0.200:8000'; socket=new WebSocket(url); socket.onopen=function(){log('连接成功')} socket.onmessage=function(msg){log('获得消息:'+msg.data);console.log(msg);} socket.onclose=function(){log('断开连接')}}function dis(){ socket.close(); socket=null;}function log(var1){ $('.log').append(var1+"/r/n");}function send(){ socket.send($('#text').attr('value'));}function send2(){ var json = JSON.stringify({'type':'php','msg':$('#text2').attr('value')}) socket.send(json);}</script></body></html>websocket.class.php
<?php/*创建类websocket($config);$config结构:$config=array( 'address'=>'192.168.0.200',//绑定地址 'port'=>'8000',//绑定端口 'event'=>'WSevent',//回调函数的函数名 'log'=>true,//命令行显示记录);回调函数返回数据格式function WSevent($type,$event)$type字符串 事件类型有以下三种in 客户端进入out 客户端断开msg 客户端消息到达均为小写$event 数组$event['k']内置用户列表的userid;$event['sign']客户标示$event['msg']收到的消息 $type='msg'时才有该信息方法:run()运行search(标示)遍历取得该标示的idclose(标示)断开连接write(标示,信息)推送信息idwrite(id,信息)推送信息属性:$users 客户列表结构:$users=array([用户id]=>array('socket'=>[标示],'hand'=[是否握手-布尔值]),[用户id]=>arr.....)*/class websocket{ public $log; public $event; public $signets; public $users; public $master; public function __construct($config){ if (substr(php_sapi_name(), 0, 3) !== 'cli') { die("请通过命令行模式运行!"); } error_reporting(E_ALL); set_time_limit(0); ob_implicit_flush(); $this->event = $config['event']; $this->log = $config['log']; $this->master=$this->WebSocket($config['address'], $config['port']); $this->sockets=array('s'=>$this->master); } 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); $this->log('开始监听: '.$address.' : '.$port); return $server; } function run(){ while(true){ $changes=$this->sockets; @socket_select($changes,$write=NULL,$except=NULL,NULL); foreach($changes as $sign){ if($sign==$this->master){ $client=socket_accept($this->master); $this->sockets[]=$client; $user = array( 'socket'=>$client, 'hand'=>false, ); $this->users[] = $user; $k=$this->search($client); $eventreturn = array('k'=>$k,'sign'=>$sign); $this->eventoutput('in',$eventreturn); }else{ $len=socket_recv($sign,$buffer,2048,0); $k=$this->search($sign); $user=$this->users[$k]; if($len<7){ $this->close($sign); $eventreturn = array('k'=>$k,'sign'=>$sign); $this->eventoutput('out',$eventreturn); continue; } if(!$this->users[$k]['hand']){//没有握手进行握手 $this->handshake($k,$buffer); }else{ $buffer = $this->uncode($buffer); $eventreturn = array('k'=>$k,'sign'=>$sign,'msg'=>$buffer); $this->eventoutput('msg',$eventreturn); } } } } } function search($sign){//通过标示遍历获取id foreach ($this->users as $k=>$v){ if($sign==$v['socket']) return $k; } return false; } function close($sign){//通过标示断开连接 $k=array_search($sign, $this->sockets); socket_close($sign); unset($this->sockets[$k]); unset($this->users[$k]); } function handshake($k,$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]['hand']=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 $msg; } function idwrite($id,$t){//通过id推送信息 if(!$this->users[$id]['socket']){return false;}//没有这个标示 $t=$this->code($t); return socket_write($this->users[$id]['socket'],$t,strlen($t)); } function write($k,$t){//通过标示推送信息 $t=$this->code($t); return socket_write($k,$t,strlen($t)); } function eventoutput($type,$event){//事件回调 call_user_func($this->event,$type,$event); } function log($t){//控制台输出 if($this->log){ $t=$t."/r/n"; fwrite(STDOUT, iconv('utf-8','gbk//IGNORE',$t)); } }}更多关于PHP相关内容感兴趣的读者可查看本站专题：《php socket用法总结》、《php字符串(string)用法总结》、《PHP数学运算技巧总结》、《php面向对象程序设计入门教程》、《PHP数组(Array)操作技巧大全》、《PHP数据结构与算法教程》、《php程序设计算法总结》及《PHP网络编程技巧总结》
希望本文所述对大家PHP程序设计有所帮助。
Peter-Zhu
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