websocket服务器+客户端

<?php
$demo = new ws('192.168.90.47',12345);
$demo->run();


class ws
{
    //当前服务端主连接
    private $currentFirstSocket;
    //存放客户端socket连接
    private $socketList = array();
    //存放自定义的客户端连接
    private $clientList = array();


    public function __construct($address, $port)
    {
        $this->currentFirstSocket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
        socket_set_option($this->currentFirstSocket, SOL_SOCKET, SO_REUSEADDR, 1);
        socket_bind($this->currentFirstSocket, $address, $port);
        socket_listen($this->currentFirstSocket,2);

        $this->socketList[] = $this->currentFirstSocket;
        self::notice('Server Started ...');
        self::notice('Listening on   : ' . $address . ' port ' . $port);
    }


    public function run()
    {
        while (TRUE) {
            $connect = $this->socketList;
            $write = NULL;
            $except = NULL;
            self::notice(count($this->socketList) . "  wait to connect ....");
            socket_select($connect, $write, $except, NULL);

            foreach ($connect as $currentConnect) {
                self::notice($currentConnect . " into connect");

                //第一次连接
                if ($currentConnect === $this->currentFirstSocket) {
                    $connectSuccessHandle = socket_accept($this->currentFirstSocket);
                    $this->socketList[] = $connectSuccessHandle;
                    $this->clientList[] = array(
                        "handshake" => false,
                        "clientHandle" => $connectSuccessHandle
                    );
                    self::notice($connectSuccessHandle. " new connect success ...");
                } else {
                    $currentConnectKey = $this->searchSocketByHandle($currentConnect);
                    //第二次接收到的是客户端发送的websocket头协议
                    $len = @socket_recv($currentConnect, $buffer, 2048, 0);
                    self::notice("len ".$len);
                    if ($len < 10) {    //如果接收到的信息长度小于10当作客户端退出
                        $this->socketExit($currentConnectKey);
                        self::notice($currentConnect . " exit" . "  have:" . count($this->socketList));
                        break;
                    }
                    //检查是否握手，去握手
                    if ($this->clientList[$currentConnectKey]['handshake'] === false) {
                        self::notice($currentConnect." handshake success...");
                        $this->handshake($currentConnectKey, $buffer);
                    } else {
                        //正式连接，解包客户端的信息
                        $buffer = $this->unmask($buffer);
                        self::notice($currentConnect." send to server...");

                        $this->send($buffer);
                    }
                }
            }
        }
    }

    /*
     * 握手
     * */
    private function handshake($currentConnectKey, $buffer)
    {
        $buf = substr($buffer, strpos($buffer, 'Sec-WebSocket-Key:') + 18);
        $key = trim(substr($buf, 0, strpos($buf, "
")));
        $new_key = base64_encode(sha1($key . "258EAFA5-E914-47DA-95CA-C5AB0DC85B11", true));
        $new_message = "HTTP/1.1 101 Switching Protocols
";
        $new_message .= "Upgrade: websocket
";
        $new_message .= "Sec-WebSocket-Version: 13
";
        $new_message .= "Connection: Upgrade
";
        $new_message .= "Sec-WebSocket-Accept: " . $new_key . "

";

        socket_write($this->clientList[$currentConnectKey]['clientHandle'], $new_message, strlen($new_message));
        $this->clientList[$currentConnectKey]['handshake'] = true;
    }

    /*
     * 客户端退出处理
     * */
    private function socketExit($currentConnectKey)
    {
        $currentSocket = $this->clientList[$currentConnectKey]['clientHandle'];
        socket_shutdown($currentSocket);
        socket_close($currentSocket);
        foreach ($this->socketList as $key => $val) {
            if ($val === $currentSocket) {
                self::notice("delete " . $this->socketList[$key]);
                unset($this->socketList[$key]);
            }
        }
        unset($this->clientList[$currentConnectKey]);
    }

    /*
     * 发送信息给所有客户端
     * */
    private function send($sendMsg)
    {
        $sendMsg = $this->mask($sendMsg);
        foreach ($this->clientList as $val) {
            self::notice("write to " . $val['clientHandle'] . " " . $sendMsg);
            socket_write($val['clientHandle'], $sendMsg, strlen($sendMsg));
        }
    }

    /*
     * 解包客户端发送的信息
     * */
    function unmask($text)
    {
        $length = ord($text[1]) & 127;
        if ($length == 126) {
            $masks = substr($text, 4, 4);
            $data = substr($text, 8);
        } elseif ($length == 127) {
            $masks = substr($text, 10, 4);
            $data = substr($text, 14);
        } else {
            $masks = substr($text, 2, 4);
            $data = substr($text, 6);
        }
        $text = "";
        for ($i = 0; $i < strlen($data); ++$i) {
            $text .= $data[$i] ^ $masks[$i % 4];
        }
        return $text;
    }
    /*
     * 封包信息发送给客户端
     * */
    function mask($text)
    {
        $b1 = 0x80 | (0x1 & 0x0f);
        $length = strlen($text);

        if ($length <= 125)
            $header = pack('CC', $b1, $length);
        elseif ($length > 125 && $length < 65536)
            $header = pack('CCn', $b1, 126, $length);
        elseif ($length >= 65536)
            $header = pack('CCNN', $b1, 127, $length);
        return $header . $text;
    }

    private function searchSocketByHandle($handle)
    {
        foreach ($this->clientList as $key => $value) {
            if ($value['clientHandle'] === $handle) {
                return $key;
            }
        }
        return false;
    }

    private static function notice($message, $num = 1)
    {
        echo date("H:i:s") . "  " . $message;
        echo str_repeat("
", $num);
    }
}

客户端

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>client</title>
    <script src="bootstrap/js/jq.js"></script>
    <script>
        var socket;
        $(document).ready(function(e) {
            connect();
        });


        function connect(){
            var url='ws://192.168.174.132:12345';
            socket = new WebSocket(url);
            socket.onopen=function(){
                if(socket.readyState==1){
                    socket.send("hello this is html");
                }else{
                    console.log("login fail");
                }
            }
            socket.onmessage=function(msg){
                console.log(msg);
            }

            socket.onclose=function(){
                console.log("close");
            }
        }

        function sendMsg()
        {
            var contetent = $("#test").val();
            console.log("send: "+contetent);
            socket.send(contetent);
        }


    </script>
</head>
<body>

<input type="input" id="test">
<input type="button" onclick="sendMsg()" value="send">

</body>
</html>