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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
<"htmlcode"><!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="/UploadFiles/2021-04-02/jquery.min.js">websocket.class.php
<"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"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。
标签：
PHP,websocket,通信
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