php怎么搭建websocket环境

;extension=sockets

extension=sockets

socket_create(AF_INET, SOCK_STREAM, SOL_tcp);//用于创建套接字
socket_bind( $this->master,$ip,$port);//用于绑定ip和端口
socket_listen( $this->master,1000);//用于调用connect连接的套接字和监听相关端口
socket_accept($this->master);//负责握手连接
socket_recv($socket, $buffer, 1024, 0);//从已连接的socket（客户端）接收数据
socket_write($socket,$upgrade,strlen($upgrade));//给单独客户端发送数据
send($message)//发送数据
socket_close($socket);//断开连接

if(preg_match("/Sec-WebSocket-Key: (.*)\r\n/",$buffer,$match)){
        $responseKey=base64_encode(sha1($match[1] . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11',true));
        $upgrade="HTTP/1.1 101 Switching Protocol\r\n".
                 "Upgrade: websocket\r\n".
                 "Connection: Upgrade\r\n".
                 "Sec-WebSocket-Accept:".$responseKey."\r\n\r\n";
                 socket_write($socket,$upgrade,strlen($upgrade));
        }

        $len=$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;

      $len=strlen($message);
if($len<=125){
return "\x81".chr($len).$message;
}else if($len<=65535){
return "\x81".chr(126).pack("n",$len).$message;
}else{
return "\x81".chr(127).pack("xxxxN",$len).$message;
}

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