实例方法

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<?php   
$address "192.168.0.108";
$port 8989//调试的时候,可以多换端口来测试程序!
 
set_time_limit(0); 
$sock socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_set_block($sock);
socket_bind($sock$address$port);
socket_listen($sock10);

do
{
    echo "Waiting for Connection...\n";
    $msgsock socket_accept($sock);
    echo "Waiting for Request...\n";
    $buf socket_read($msgsock8192);     //读取请求
    echo "Request Received: $buf\n";
    $response hand_shake($buf);
    socket_write($msgsock,$response,strlen($response)); //发送响应
 
    //正式开始通信...
    $buf socket_read($msgsock8192); //获取前端发送的消息
    //这里我用了③中的编码和解码方法mask和umaske,原来的无法正确的接收到客户端发的信息,乱码,
    //而且无法将json数据编码发送给前端,我是没成功。
   if (unmask($buf)) {
    $msg = [
      'status' => 'ok',
      'result' => [
            'document' => [
              'title' => '西安高新区网络监测'
            ],
            'centre' => [108.900073000034.1876790000],
            'position' => [
              [
                'title' => "高新区",
                'value' => [108.89593534.201035],
                'status' => 1,
                'ip' => '192.68.0.1',
                'address' => '锦业路1号都市之门A座',
                'target' => true
              ],
              [
                'title' => "省图书馆",
                'value' => [108.84026734.21774],
                'status' => 1,
                'ip' => '192.68.0.138',
                'address' => '天谷七路与云水一路交汇处西北侧',
                'target' => false
              ],
              [
                'title' => "省训练中心",
                'value' => [108.89114734.207829],
                'status' => 2,
                'ip' => '192.68.0.34',
                'address' => '丈八东路311号',
                'target' => false
              ],
              [
                'title' => "电子科技大学",
                'value' => [108.83999334.128716],
                'status' => 0,
                'address' => '西沣路兴隆段266号',
                'ip' => '192.68.0.166',
                'target' => false
              ],
              [
                'title' => "软件新城",
                'value' => [108.88503834.231172],
                'status' => 1,
                'ip' => '192.68.0.9',
                'address' => '天谷八路211号环普科技产业园',
                'target' => false
              ],
              [
                'title' => "木塔寺公园",
                'value' => [108.90192734.216188],
                'status' => 1,
                'ip' => '192.68.0.223',
                'address' => '科技六路6号',
                'target' => false
              ],
              [
                'title' => "华为研究所",
                'value' => [108.84508234.204008],
                'status' => 1,
                'ip' => '192.68.0.99',
                'address' => '南郑大道南',
                'target' => false
              ],
              [
                'title' => "中兴科技园",
                'value' => [108.8800434.191312],
                'status' => 1,
                'ip' => '192.68.0.87',
                'address' => '唐延南路10号中兴产业园',
                'target' => false
              ]
            ]
        ]
    ];
      $response_text mask(json_encode($msgtrue));  
      socket_write($msgsock$response_textstrlen($response_text));
     }else{
            //这里不建议用array,因为json_encode之后出现空值,可能是编码问题。
            //一旦编码出问题,就是返回空,又不报错
        $data = [
        'status' => 'error',
        'result' => [
          'code' => 401,
          'errmsg' => '您输入的登录账户或密码有误。'
        ]
       ];   
        $response_text mask(json_encode($msgtrue));
        socket_write($msgsock$response_textstrlen($response_text));
   }

   do
   {
    $one rand(05);
    $two rand(05);
    $three rand(05);
    $four rand(05);
    $five rand(05);
    $sum $one $two $three $four $five;
    $msg = [
      'status' => 'ok',
      'result' => [
            'document' => [
              'title' => '西安高新区网络监测'
            ],
            'centre' => [108.900073000034.1876790000],
            'position' => [
              [
                'title' => "高新区",
                'value' => [108.89593534.201035],
                'status' => 1,
                'ip' => '192.68.0.1',
                'address' => '锦业路1号都市之门A座',
                'target' => true
              ],
              [
                'title' => "省图书馆",
                'value' => [108.84026734.21774],
                'status' => 1,
                'ip' => '192.68.0.138',
                'address' => '天谷七路与云水一路交汇处西北侧',
                'target' => false
              ],
              [
                'title' => "省训练中心",
                'value' => [108.89114734.207829],
                'status' => 2,
                'ip' => '192.68.0.34',
                'address' => '丈八东路311号',
                'target' => false
              ],
              [
                'title' => "电子科技大学",
                'value' => [108.83999334.128716],
                'status' => 0,
                'address' => '西沣路兴隆段266号',
                'ip' => '192.68.0.166',
                'target' => false
              ],
              [
                'title' => "软件新城",
                'value' => [108.88503834.231172],
                'status' => 1,
                'ip' => '192.68.0.9',
                'address' => '天谷八路211号环普科技产业园',
                'target' => false
              ],
              [
                'title' => "木塔寺公园",
                'value' => [108.90192734.216188],
                'status' => 1,
                'ip' => '192.68.0.223',
                'address' => '科技六路6号',
                'target' => false
              ],
              [
                'title' => "华为研究所",
                'value' => [108.84508234.204008],
                'status' => 1,
                'ip' => '192.68.0.99',
                'address' => '南郑大道南',
                'target' => false
              ],
              [
                'title' => "中兴科技园",
                'value' => [108.8800434.191312],
                'status' => 1,
                'ip' => '192.68.0.87',
                'address' => '唐延南路10号中兴产业园',
                'target' => false
              ]
            ]
        ]
    ];
    $response_text mask(json_encode($msgtrue));
    
    socket_write($msgsock$response_textstrlen($response_text));
    sleep(5);
  } while (true);

while (true);

socket_close($sock);
 
function hand_shake($buf){
    $buf  substr($buf,strpos($buf,'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";
    return $new_message;
}

//解码数据
function unmask($text{
    $length ord($text[1]) & 127;
    if($length == 126) {
        $masks substr($text44);
        $data substr($text8);
    }
    elseif($length == 127) {
        $masks substr($text104);
        $data substr($text14);
    }
    else {
        $masks substr($text24);
        $data substr($text6);
    }
    $text "";
    for ($i 0$i strlen($data); ++$i) {
        $text .= $data[$i] ^ $masks[$i%4];
    }
    return $text;
}
  
function mask($text)
{
    $b1 0x80 | (0x1 & 0x0f);
    $length strlen($text);
    
    if($length <= 125)
        $header pack('CC'$b1$length);
    elseif($length 125 && $length 65536)
        $header pack('CCn'$b1126$length);
    elseif($length >= 65536)
        $header pack('CCNN'$b1127$length);
    return $header.$text;
}