一、安装
composer require workerman/phpsocket.io
二、服务端和客户端连接
<?php
require_once './vendor/autoload.php';
use Workerman\Worker;
use PHPSocketIO\SocketIO;
$io = new SocketIO(3120);
// 当有客户端连接时
$io->on('connection', function($socket)use($io){
// 定义chat message事件回调函数
$socket->on('chat message', function($data)use($io){
// 触发所有客户端定义的chat message from server事件
var_dump($data);
$io->emit('chat message from server', $data);
});
});
Worker::runAll();
三、客户端
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>聊天室</title>
</head>
<body>
<div id="msg_box">
</div>
<div id="input-box">
<input type="text" id="msg_input"><button onclick="send()">发送</button>
</div>
<script src='https://lib.baomitu.com/socket.io/1.7.4/socket.io.min.js'></script>
<script>
// 连接服务端
var socket = io('http://127.0.0.1:3120');
function send()
{
var msg = document.querySelector('#msg_input').value;
socket.emit('chat message', msg);
document.querySelector('#msg_input').value = '';
}
// 服务端通过emit('chat message from server', $msg)触发客户端的chat message from server事件
socket.on('chat message from server', function(msg){
var oDiv = document.createElement('div');
oDiv.innerHTML = msg;
document.querySelector('#msg_box').appendChild(oDiv);
});
</script>
</body>
</html>
四、广播给客户端
<?php
/**
* Created by PhpStorm.
* User: Administrator
* Date: 2023/12/30 0030
* Time: 13:21
*/
class SocketIO
{
/**
* 发送数据
* @param null $host
* @param null $port
* @param string $action
* @param null $data
* @param string $address
* @param string $transport
* @return bool
*/
public function send($host = null, $port = null, $action = "message", $data = null, $address = "/socket.io/?EIO=2", $transport = 'websocket')
{
$fd = fsockopen($host, $port, $errno, $errstr);
if (!$fd) {
return false;
} //Can't connect tot server
$key = $this->generateKey();
$out = "GET $address&transport=$transport HTTP/1.1\r\n";
$out .= "Host: http://$host:$port\r\n";
$out .= "Upgrade: WebSocket\r\n";
$out .= "Connection: Upgrade\r\n";
$out .= "Sec-WebSocket-Key: $key\r\n";
$out .= "Sec-WebSocket-Version: 13\r\n";
$out .= "Origin: *\r\n\r\n";
fwrite($fd, $out);
// 101 switching protocols, see if echoes key
$result = fread($fd, 10000);
preg_match('#Sec-WebSocket-Accept:\s(.*)$#mU', $result, $matches);
$keyAccept = trim($matches[1]);
$expectedResonse = base64_encode(pack('H*', sha1($key . '258EAFA5-E914-47DA-95CA-C5AB0DC85B11')));
$handshaked = ($keyAccept === $expectedResonse) ? true : false;
if ($handshaked) {
if ($action){
fwrite($fd, $this->hybi10Encode('42["' . $action . '", "' . addslashes($data) . '"]'));
}else{
fwrite($fd, $this->hybi10Encode(addslashes($data)));
}
$content = '';
while (!feof($fd)) {
stream_set_timeout($fd, 1);
$content .= fread($fd, 1024);
$info = stream_get_meta_data($fd);
if ($info['timed_out']) {
break;
}
}
//fread($fd,1000000);
fclose($fd);
return true;
} else {
return false;
}
}
private function generateKey($length = 16)
{
$c = 0;
$tmp = '';
while ($c++ * 16 < $length) {
$tmp .= md5(mt_rand(), true);
}
return base64_encode(substr($tmp, 0, $length));
}
private function hybi10Encode($payload, $type = 'text', $masked = true)
{
$frameHead = array();
$payloadLength = strlen($payload);
switch ($type) {
case 'text':
$frameHead[0] = 129;
break;
case 'close':
$frameHead[0] = 136;
break;
case 'ping':
$frameHead[0] = 137;
break;
case 'pong':
$frameHead[0] = 138;
break;
}
if ($payloadLength > 65535) {
$payloadLengthBin = str_split(sprintf('%064b', $payloadLength), 8);
$frameHead[1] = ($masked === true) ? 255 : 127;
for ($i = 0; $i < 8; $i++) {
$frameHead[$i + 2] = bindec($payloadLengthBin[$i]);
}
if ($frameHead[2] > 127) {
$this->close(1004);
return false;
}
} elseif ($payloadLength > 125) {
$payloadLengthBin = str_split(sprintf('%016b', $payloadLength), 8);
$frameHead[1] = ($masked === true) ? 254 : 126;
$frameHead[2] = bindec($payloadLengthBin[0]);
$frameHead[3] = bindec($payloadLengthBin[1]);
} else {
$frameHead[1] = ($masked === true) ? $payloadLength + 128 : $payloadLength;
}
foreach (array_keys($frameHead) as $i) {
$frameHead[$i] = chr($frameHead[$i]);
}
if ($masked === true) {
$mask = array();
for ($i = 0; $i < 4; $i++) {
$mask[$i] = chr(rand(0, 255));
}
$frameHead = array_merge($frameHead, $mask);
}
$frame = implode('', $frameHead);
for ($i = 0; $i < $payloadLength; $i++) {
$frame .= ($masked === true) ? $payload[$i] ^ $mask[$i % 4] : $payload[$i];
}
return $frame;
}
}
$socket = new SocketIO();
//发送消息到服务端，广播消息给所有客户端
$res = $socket->send('127.0.0.1', 3120, 'chat message', 'this is a test');
var_dump($res);
五、文档
https://www.workerman.net/phpsocket_io
