class websocket
{
public $log;
public $event;
public $signets;
public $users;
public $master;
public $obj;
public function __construct($config)
{
if (substr(php_sapi_name(), 0, 3) !== 'cli') {
die("請(qǐng)通過(guò)命令行模式運(yùn)行!");
}
error_reporting(E_ALL);
set_time_limit(0);
ob_implicit_flush();
$this->event = $config['event'];
$this->log = $config['log'];
$this->obj = $config['obj'];
$this->master = $this->WebSocket($config['address'], $config['port']);
$this->sockets = array('s' => $this->master);
}
function WebSocket($address, $port)
{
$server = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_set_option($server, SOL_SOCKET, SO_REUSEADDR, 1);
socket_bind($server, $address, $port);
socket_listen($server);
$this->log('開(kāi)始監(jiān)聽(tīng): ' . $address . ' : ' . $port);
return $server;
}
function run()
{
while (true) {
$changes = $this->sockets;
@socket_select($changes, $write = NULL, $except = NULL, NULL);
foreach ($changes as $sign) {
if ($sign == $this->master) {
$client = socket_accept($this->master);
$this->sockets[] = $client;
$user = array(
'socket' => $client,
'hand' => false,
);
$this->users[] = $user;
$k = $this->search($client);
$eventreturn = array('k' => $k, 'sign' => $sign);
$this->eventoutput('in', $eventreturn);
} else {
$len = socket_recv($sign, $buffer, 2048, 0);
$k = $this->search($sign);
$user = $this->users[$k];
if ($len < 7) {
$this->close($sign);
$eventreturn = array('k' => $k, 'sign' => $sign);
$this->eventoutput('out', $eventreturn);
continue;
}
if (!$this->users[$k]['hand']) {//沒(méi)有握手進(jìn)行握手
$this->handshake($k, $buffer);
} else {
$buffer = $this->uncode($buffer);
$eventreturn = array('k' => $k, 'sign' => $sign, 'msg' => $buffer);
$this->eventoutput('msg', $eventreturn);
}
}
}
}
}
function search($sign)
{//通過(guò)標(biāo)示遍歷獲取id
foreach ($this->users as $k => $v) {
if ($sign == $v['socket'])
return $k;
}
return false;
}
function close($sign)
{//通過(guò)標(biāo)示斷開(kāi)連接
$k = array_search($sign, $this->sockets);
socket_close($sign);
unset($this->sockets[$k]);
unset($this->users[$k]);
}
function handshake($k, $buffer)
{
$buf = substr($buffer, strpos($buffer, '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: " . $new_key . "\r\n\r\n";
socket_write($this->users[$k]['socket'], $new_message, strlen($new_message));
$this->users[$k]['hand'] = true;
return true;
}
function uncode($str)
{
$mask = array();
$data = '';
$msg = unpack('H*', $str);
$head = substr($msg[1], 0, 2);
if (hexdec($head{1}) === 8) {
$data = false;
} else if (hexdec($head{1}) === 1) {
$mask[] = hexdec(substr($msg[1], 4, 2));
$mask[] = hexdec(substr($msg[1], 6, 2));
$mask[] = hexdec(substr($msg[1], 8, 2));
$mask[] = hexdec(substr($msg[1], 10, 2));
$s = 12;
$e = strlen($msg[1]) - 2;
$n = 0;
for ($i = $s; $i <= $e; $i += 2) {
$data .= chr($mask[$n % 4] ^ hexdec(substr($msg[1], $i, 2)));
$n++;
}
}
return $data;
}
function code($msg)
{
$msg = preg_replace(array('/\r$/', '/\n$/', '/\r\n$/',), '', $msg);
$frame = array();
$frame[0] = '81';
$len = strlen($msg);
$frame[1] = $len < 16 ? '0' . dechex($len) : dechex($len);
$frame[2] = $this->ord_hex($msg);
$data = implode('', $frame);
return pack("H*", $data);
}
function ord_hex($data)
{
$msg = '';
$l = strlen($data);
for ($i = 0; $i < $l; $i++) {
$msg .= dechex(ord($data{$i}));
}
return $msg;
}
function idwrite($id, $t)
{//通過(guò)id推送信息
if (!$this->users[$id]['socket']) {
return false;
}//沒(méi)有這個(gè)標(biāo)示
$t = $this->code($t);
return socket_write($this->users[$id]['socket'], $t, strlen($t));
}
function write($k, $t)
{//通過(guò)標(biāo)示推送信息
$t = $this->code($t);
return socket_write($k, $t, strlen($t));
}
function eventoutput($type, $event)
{//事件回調(diào)
call_user_func(array($this->obj, $this->event), $this, $type, $event);
}
function log($t)
{//控制臺(tái)輸出
if ($this->log) {
$t = $t . "\r\n";
fwrite(STDOUT, $t);
}
}
}
server.php

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include('websocket.class.php');
$config=array(
'address'=>'192.168.1.12',
'port'=>'8000',
'event'=>'WSevent',//回調(diào)函數(shù)的函數(shù)名
'log'=>true,
);
$websocket = new websocket($config);
$websocket->run();
function WSevent($type,$event){
global $websocket;
if('in'==$type){
$websocket->log('客戶(hù)進(jìn)入id:'.$event['k']);
}elseif('out'==$type){
$websocket->log('客戶(hù)退出id:'.$event['k']);
}elseif('msg'==$type){
$websocket->log($event['k'].'消息:'.$event['msg']);
roboot($event['sign'],$event['msg']);
}
}
function roboot($sign,$t){
global $websocket;
switch ($t)
{
case 'hello':
$show='hello,GIt @ OSC';
break;
case 'name':
$show='Robot';
break;
case 'time':
$show='當(dāng)前時(shí)間:'.date('Y-m-d H:i:s');
break;
case '再見(jiàn)':
$show='( ^_^ )/~~拜拜';
$websocket->write($sign,'Robot:'.$show);
$websocket->close($sign);
return;
break;
case '天王蓋地虎':
$array = array('小雞燉蘑菇','寶塔震河妖','粒粒皆辛苦');
$show = $array[rand(0,2)];
break;
default:
$show='( ⊙o⊙?)不懂,你可以嘗試說(shuō):hello,name,time,再見(jiàn),天王蓋地虎.';
}
$websocket->write($sign,'Robot:'.$show);
}
?>
在終端 php server.php
index.html
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>websocket_TEST</title>
</head>
<body>
<a href="index2.html">index2</a>
<textarea class="log" >
</textarea>
<input type="button" value="連接" onClick="link()">
<input type="button" value="斷開(kāi)" onClick="dis()">
<input type="text" id="text2">
<input type="button" value="發(fā)送" onClick="send2()">
<script src="http://jt.hiooy.com/hsshop/js/jquery.js?v=59"></script>
<script>
function link(){
var url='ws://192.168.1.12:8000';
socket=new WebSocket(url);
socket.onopen=function(){log('連接成功')}
socket.onmessage=function(msg){log('獲得消息:'+msg.data);console.log(msg);}
socket.onclose=function(){log('斷開(kāi)連接')}
}
function dis(){
socket.close();
socket=null;
}
function log(var1){
$('.log').append(var1+"\r\n");
}
function send(){
socket.send($('#text').attr('value'));
}
function send2(){
var json = JSON.stringify({'type':'php','msg':$('#text2').attr('value')})
socket.send(json);
}
</script>
</body>
</html>
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當(dāng)前題目:php原生websocket-創(chuàng)新互聯(lián)
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