php socket 和 html5 websocket 通讯

window下  运行方式

 将以下cmd命令 保存到文本  另存为  cli .bat  文件  ，双击运行。

 D:\php7\php.exe   E:\www\Server_socket.php

PHP 服务器 代码  

 /**
 * 聊天室服务器  websocket 专用
 */
 class Server_socket
 {
     private $socket;
     private $accept = [];
     private $hands = [];
     function __construct($host, $port, $max)
     {
         $this->socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
         socket_set_option($this->socket, SOL_SOCKET, SO_REUSEADDR, TRUE);
         socket_bind($this->socket, $host,$port);
         socket_listen($this->socket,$max);
         print_r($this->socket);
     }

     public function start()
     {
         while (true) {

             $cycle = $this->accept;
             $cycle[] = $this->socket;
             socket_select($cycle, $write, $except, null);

             foreach ($cycle as $sock) {
                 if ($sock == $this->socket) {
                     $this->accept[] = socket_accept($sock);
                     $arr =  array_keys($this->accept);
                     $key = end($arr);
                     $this->hands[$key] = false;
                 }else{
                     $length = socket_recv($sock, $buffer, 204800, null);
                     $key = array_search($sock, $this->accept);
                     if (!$this->hands[$key]) {
                         $this->dohandshake($sock,$buffer,$key);
                     }else if($length < 1){
                         $this->close($sock);
                     }else{
                         // 解码
                         $data = $this->decode($buffer);
                         print_r($data);
                         //编码
                         $data = $this->encode($data);
                         print_r($data);
                         //发送
                         foreach ($this->accept as $client) {
                             socket_write($client, $data,strlen($data));
                         }
                     }
                 }
             }
             sleep(1);
         }
     }/* end of start*/

     /**
      * 首次与客户端握手
      */
     public function dohandshake($sock, $data, $key) {
         if (preg_match("/Sec-WebSocket-Key: (.*)\r\n/", $data, $match)) {
             $response = base64_encode(sha1($match[1] . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11', true));
             $upgrade  = "HTTP/1.1 101 Switching Protocol\r\n" .
                     "Upgrade: websocket\r\n" .
                     "Connection: Upgrade\r\n" .
                     "Sec-WebSocket-Accept: " . $response . "\r\n\r\n";
             socket_write($sock, $upgrade, strlen($upgrade));
             $this->hands[$key] = true;
         }
     }/*dohandshake*/

     /**
      * 关闭一个客户端连接
      */
     public function close($sock) {
         $key = array_search($sock, $this->accept);
         socket_close($sock);
         unset($this->accept[$key]);
         unset($this->hands[$key]);
     }

     /**
      * 字符解码
      */
     public function decode($buffer) {
         $len = $masks = $data = $decoded = null;
         $len = ord($buffer[1]) & 127;
         if ($len === 126) {
             $masks = substr($buffer, 4, 4);
             $data = substr($buffer, 8);
         }
         else if ($len === 127) {
             $masks = substr($buffer, 10, 4);
             $data = substr($buffer, 14);
         }
         else {
             $masks = substr($buffer, 2, 4);
             $data = substr($buffer, 6);
         }
         for ($index = 0; $index < strlen($data); $index++) {
             $decoded .= $data[$index] ^ $masks[$index % 4];
         }
         return $decoded;
     }

     /**
      * 字符编码
      */
     public function encode($buffer) {
         $length = strlen($buffer);
         if($length <= 125) {
             return "\x81".chr($length).$buffer;
         } else if($length <= 65535) {
             return "\x81".chr(126).pack("n", $length).$buffer;
         } else {
             return "\x81".char(127).pack("xxxxN", $length).$buffer;
         }
     }

 }/* end of class Server_socket*/

 $server_socket = new Server_socket('127.0.0.1',8008,1000);
 $server_socket->start(); sleep(1000); ?>

HTML5 客户端代码

 >
 <html lang="en">

 <head>
     <meta charset="UTF-8">
     <title>websockettitle>
 head>

 <body>
     <div>
         <button id='send'> 发送button>
     div>
 body>
 <script>
 var socket = new WebSocket('ws://127.0.0.1:8008');
 socket.onopen = function(event) {
     alert('连接');
 };

 socket.onmessage = function(event) {
     var content = event.data;
     if (content.length > 2) {
         alert(content);
     }
 };
 var send = document.getElementById('send');
 send.addEventListener('click', function() {

     var content = '123456789'
     socket.send(content);
     alert('发送');

 });
 script>

 html>

转自：http://blog.csdn.net/luochengquan/article/details/62041811