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好好学习网--PHP和FLASH的socket

作者：网络文章来源：互联网浏览次数：10 发表时间：2010-09-09返回列表

=======================第一页=======================

楼主：最近工作闲来无事，于是想到了有不少人为flash的xmlsocket和 php 的socket 多线程通信问题犯愁，经过研究后，测试成功，贴码如下，望大家拍砖讨论~
PHP服务端:

<?php
//监听套接字=>数据读取流
$port = 8653;
$adr = "172.16.100.136";
// create a streaming socket, of type TCP/IP
//创建一个数据流，TCP/IP类型
$sock = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
// set the option to reuse the port
//设置可以重用端口的选项
socket_set_option($sock, SOL_SOCKET, SO_REUSEADDR, 1);
//设置非阻塞
socket_set_nonblock($sock);
// "bind" the socket to the address to "localhost", on port $port
// so this means that all connections on this port are now our resposibility to send/recv data, disconnect, etc..
//绑定套接字到指定的地址和端口
//而这意味着所有的消息发送/接受,，断开都要通过这个端口的链接
socket_bind($sock, 0, $port);
// start listen for connections
//开始侦听链接
socket_listen($sock);
// create a list of all the clients that will be connected to us..
// add the listening socket to this list
//创建一份将连接我们的链接池
//并且将监听套接字也添加到该池子
$clients = array($sock);
while (true) {
// create a copy, so $clients doesnt get modified by socket_select()
//创建一份复制，防止链接池不会被socket_select( )改变，因为是引用传入
$newsock = @socket_accept($sock);
if (false === in_array($newsock, $clients) && false !== $newsock) {
$clients[] = $newsock;
$data = @socket_read($newsock, 1024, PHP_BINARY_READ);
$data = trim($data);
echo $data . "\n";
if (<policy-file-request/> === $data) {
$msg ="<cross-domain-policy><allow-access-from domain=* to-ports=* /></cross-domain-policy>\0";
socket_write($newsock, $msg, strlen($msg));
echo "PHP-Auth\n";
} else {
socket_getpeername($newsock, $ip);
echo "New client connected: {$ip}:\n";
$msg = $data . "\0";
socket_write($newsock, $msg, strlen($msg));
}
continue;
} else {
$read = $clients;
// get a list of all the clients that have data to be read from
// if there are no clients with data, go to next iteration
//获取一份所有能读取到数据的链接池
//如果传递过来的链接池没有有数据的，进入下一个循环
$res = @socket_select($read, $write = NULL, $except = NULL, 0);
if (false === $res) {
echo "Client disconnected\n";
break;
} else if (0 < $res) {
foreach ($read as $read_sock) {
if ($sock !== $read_sock) {
$data = @socket_read($read_sock, 1024, PHP_BINARY_READ);
if (false === $data) {
// remove client for $clients array
$key = array_search($read_sock, $clients, true);
unset($clients[$key]);
//var_dump($read_sock);
echo "client disconnected.\n";
} else {
$data = trim($data);
if ( !== $data) {
//var_dump($clients);
//var_dump($read);
//echo "resource:$res\n";
echo $data . "...\n";
$msg = $data . "\0";
socket_write($read_sock, $msg, strlen($msg));
}
}
}
}
}
}
}
// close the listening socket
//关闭监听套接字
@socket_close($sock);
?>

复制代码

HTML 代码:

<HTML>
<HEAD>
<meta http-equiv=Content-Type content="text/html; charset=GB2312">
<TITLE>3</TITLE>
<script>
function back(msg) {
var obj = document.getElementById(res);
obj.innerHTML = obj.innerHTML + msg + "<br>\n";
}
function send() {
var msg = document.getElementById(msg).value;
window.document.myFlash.SetVariable("msg", msg);
}
</script>
</HEAD>
<BODY bgcolor="#FFFFFF">
<div id="res"></div>
<OBJECT classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000"
codebase="http://download.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=6,0,0,0"
WIDTH="50" HEIGHT="40" id="myFlash" ALIGN="middle">
<PARAM NAME=movie VALUE="3.swf">
<PARAM NAME=quality VALUE=high>
<PARAM NAME=bgcolor VALUE=#FFFFFF>
<EMBED src="3.swf" quality=high bgcolor=#FFFFFF WIDTH="550" HEIGHT="400" NAME="myFlash" ALIGN=""
TYPE="application/x-shockwave-flash" PLUGINSPAGE="http://www.macromedia.com/go/getflashplayer" allowScriptAccess="sameDomain" swLiveConnect="true"></EMBED>
</OBJECT>
<input type=text id="msg"><button onclick="send()">Send</button>
</BODY>
</HTML>