核心 PHP 中的 WebSocket 客户端

>我正在尝试将数据发送到PHPwebsocket服务器，虽然它发送数据但接收的数据是垃圾值。如何解决此问题以将正确的值发布到 websocket php 服务器？

下面是我的 websocket php 客户端脚本

<?php
$host = 'example.com:9000/server.php';  //where is the websocket server
$port = 9000; //ssl
$local = "http://localhost/";  //url where this script run
$data = json_encode(array("server_msg"=> "1","device_id"=> "DDD-123455678"));  //data to be send
$head = "GET / HTTP/1.1"."'r'n".
    "Host: $host"."'r'n".
    "Upgrade: websocket"."'r'n".
    "Connection: Upgrade"."'r'n".
    "Sec-WebSocket-Key: asdasdaas76da7sd6asd6as7d"."'r'n".
    "Sec-WebSocket-Version: 13"."'r'n".
    "Content-Length: ".strlen($data)."'r'n"."'r'n";
////WebSocket handshake
$sock = fsockopen($host, $port, $errno, $errstr, 2);
fwrite($sock, $head ) or die('error:'.$errno.':'.$errstr);
$headers = fread($sock, 2000);
fwrite($sock, "'x00$data'xff" ) or die('error:'.$errno.':'.$errstr);
$wsdata = fread($sock, 2000);  //receives the data included in the websocket package "'x00DATA'xff"
$retdata = trim($wsdata,"'x00'xff"); //extracts data
////WebSocket handshake
fclose($sock);
echo $retdata;
?>

谢谢

你好

我已经尝试过了，它给了我如下错误：

致命错误：未捕获的异常"WebSocket''ConnectionException"，在第 149 行的/var/www/webclientphp/vendor/textalk/websocket/lib/Client.php 中带有消息"连接到 'ws：//******/server.php

WebSocket''ConnectionException： 连接到 'ws：//**********/

server.php' 失败： 服务器发送了无效的升级响应： HTTP/1.1 101 Web 套接字协议握手升级： websocket 连接： 升级 WebSocket-Origin： ****** WebSocket-Location： ws：//********：9000/demo/shout.php sec-WebSocket-Accept：Kfh9QIsMVZcl6xEPYxPHzW8SZ8w= in/var/www/webclientphp/vendor/textalk/websocket/lib/Client.php on line 149

请帮忙