费话不多讲，具体看代码
1.服务端实现
class Ws{
private $host = ‘127.0.0.1‘;
private $port = 8080;
private $maxuser = 10;
private $socket;
public $accept = [];
private $isHand = [];
private $cycle = [];
public function __construct($host,$port,$maxuser)
{
$this->host = $host;
$this->port = $port;
$this->maxuser = $maxuser;
}
public function start()
{
// 创建一个Socket
$this->socket = socket_create(AF_INET,SOCK_STREAM,SOL_TCP);
//允许使用本地地址
socket_set_option($this->socket,SOL_SOCKET,SO_REUSEADDR,TRUE);
// 绑定地址和端口
socket_bind($this->socket,$this->host,$this->port);
//侦听
socket_listen($this->socket,$this->maxuser);
while(True){
$this->cycle = $this->accept;
$this->cycle[] = $this->socket;
//阻塞用，有新连接时才会结束
socket_select($this->cycle, $write, $except, null);
//轮询
foreach($this->cycle as $key =>$v){
if($v === $this->socket){
//当接受一个Socket不成功时，继续下一个
if(($accept = socket_accept($v))<0){
continue;
}
//添加到循环池
$this->add_accept($accept);
continue;
}
// 获得当前连接健值
$index = array_search($v,$this->accept);
if($index === null){
continue;
}
// 接受客户端数据
if( [email protected]_recv($v,$data,1024,0) || !$data){
$this->close($v);
continue;
}
// 握手并发送用户连接数
if(!$this->isHand[$index]){
$this->upgrade($v,$data,$index);
call_user_func_array(‘user_add_callback‘,array($this));
continue;
}
$data = $this->decode($data);
// 发送数据
call_user_func_array(‘send_callback‘, array($data, $index, $this));
}
sleep(1);
}
}
回调
function send_callback($data, $index, $ws) {
$data = json_encode(array(
‘text‘ => $data,
‘user‘ => $index,
));
send_to_all($data, ‘text‘, $ws);
}
function send_to_all($data, $type, $ws){
$res = array(
‘msg‘ => $data,
‘type‘ => $type,
);
$res = json_encode($res);
$res = $ws->frame($res);
print_r($ws->accept);
foreach ($ws->accept as $key => $value) {
socket_write($value, $res, strlen($res));
}
}
function close_callback($ws) {
$data = count($ws->accept);
send_to_all($data, ‘num‘, $ws);
}
function user_add_callback($ws) {
$data = count($ws->accept);
send_to_all($data, ‘num‘, $ws);
}
客户端实现
<!DOCTYPE html>
<html dir="ltr" lang="zh" xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>websocket聊天室</title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<link rel="stylesheet" type="text/css" href="css/bootstrap.min.css">
</head>
<body>
<div class="container">
<p>在线人数<span id="userNum"></span></p>
<textarea id="message" rows="10"></textarea>
<div class="send">
<p><textarea id="input" placeholder="请输入要发送的内容"></textarea></p>
<p><button type="button" class="btn btn-primary" id="sub">发送</button></p>
</div>
</div>
<script type="text/javascript">
(function(){
var $ = function(id){return document.getElementById(id) || null;}
var wsServer = ‘ws://127.0.0.1:8080‘;
var ws = new WebSocket(wsServer);
var isConnect = false;
ws.onopen = function (evt) { onOpen(evt) };
ws.onclose = function (evt) { onClose(evt) };
ws.onmessage = function (evt) { onMessage(evt) };
ws.onerror = function (evt) { onError(evt) };
function onOpen(evt) {
console.log("连接服务器成功");
isConnect = true;
}
function onClose(evt) {
//console.log("Disconnected");
}
function onMessage(evt) {
var data = JSON.parse(evt.data);
switch (data.type) {
case ‘text‘:
addMsg(data.msg);
break;
case ‘num‘ :
updataUserNum(data.msg);
break;
}
console.log(‘Retrieved data from server: ‘ + evt.data);
}
function onError(evt) {
//console.log(‘Error occured: ‘ + evt.data);
}
function sendMsg() {
if(isConnect){
ws.send($(‘input‘).value);
$(‘input‘).value = ‘‘;
}
}
function addMsg(msg) {
msg = JSON.parse(msg);
var text = ‘用户‘ + msg.user + ‘说:\n‘ + msg.text + ‘\n‘;
$(‘message‘).value += text;
$(‘message‘).scrollTop = $(‘message‘).scrollHeight;
}
function updataUserNum(msg) {
$(‘userNum‘).innerText = msg;
}
$(‘sub‘).addEventListener(‘click‘,sendMsg,false);
})();
</script>
</body>
</html>
时间： 2024-10-11 02:56:06