| 以下为引用的内容：
源代码网整理以下<?php
/**
* 黑夜路人简易聊天室
* 作者: heiyeluren <heiyeluren_at_163.com>
* 创建: 2005-8-10 22:42
* 修改: 2005-8-11 23:25
*/
error_reporting(7);
session_start();
header("ContentType:text/html;charset=gb2312");
define("SCRIPT", $_SERVER["SCRIPT_NAME"]);
define("CHAT_NOTE", "./chat.txt");
define("ONLINE_LIST", "./online.txt");
define("REF_TIME", 5);
define("CHAT_NAME", "黑夜路人聊天室");
define("AD_MSG", "今天是中国情人节, 祝大家情人节快乐!!");
源代码网整理以下//获取值
if (isset($_GET["action"]) && !empty($_GET["action"])) {
$action = $_GET["action"];
}
源代码网整理以下//如果已经登陆那么直接跳到聊天界面
if (!isset($_GET["action"]) && isset($_SESSION["username"])) {
header("location:".SCRIPT."?action=chat");
}
源代码网整理以下//登陆提示
if (!isset($_GET["action"]))
{
if (!session_is_registered("username"))
{
echo " <p><h3 align=center>[ ".CHAT_NAME." ] © 2005</h3></p>
<p align=center>
<form action=".SCRIPT."?action=login method=post>
呢称: <input type=text size=25 maxlength=30 name=login_user>
<input type=submit value=聊天>
</form></p>
";
exit;
}
}
源代码网整理以下//校验登陆
if ($action=="login")
{
if (isset($_POST["login_user"]) && !empty($_POST["login_user"])) {
$username = $_POST["login_user"];
} else {
$username = "游客";
}
session_register("username");
save_online($username, get_client_ip());
header("location:".SCRIPT."?action=chat");
}
源代码网整理以下//开始聊天www.knowsky.com
if ($action=="chat")
{
$online_sum = get_online_sum();
echo "<head><title>[ ".CHAT_NAME." ]</title></head><center>
<body bgcolor=#C4BFB9 style="font-size:12px;">
<div style="border:1px solid #999966; width:802px;height:450">
<iframe src="http://www.chinaz.com/Program/PHP/".SCRIPT."?action=show"
name=show_win width=800 height=450 scrolling=auto frameborder=0></iframe>
</div><br>
<marquee width=70% scrollamount=2> ".AD_MSG." </marquee>
[当前在线：$online_sum]
<iframe src="http://www.chinaz.com/Program/PHP/".SCRIPT."?action=say" name=say_win width=800
height=60 scrolling=no frameborder=0>
";
}
源代码网整理以下//说话界面
if ($action=="say")
{
echo "<head><title>[ ".CHAT_NAME." ]</title></head><center>
<body bgcolor=#C4BFB9 style="font-size:12px;">
<form action=".SCRIPT."?action=save method=post name=chat
onSubmit="return check()">
[".$_SESSION["username"]."]说:<input type=text size=80
maxlength=500 name=chatmsg style=" background-color:#99CC99;
width:550px; height:22px; border:1px solid:#000000">
<select name=usercolor>
<OPTION selected style="COLOR: #000000" value="000000">默认颜色</OPTION>
<OPTION style="COLOR: #000000" value="#000000">黑色沉静</OPTION>
<option style="COLOR: #ff0000" value="#FF0000">红色热情</option>
<option style="COLOR: #0000ff" value="#0000FF">蓝色开朗</option>
<option style="COLOR: #ff00ff" value="#FF00FF">桃色浪漫</option>
<option style="COLOR: #009900" value="#009900">绿色青春</option>
<option style="COLOR: #009999" value="#009999">青色清爽</option>
<option style="COLOR: #990099" value="#990099">紫色拘谨</option>
<option style="COLOR: #990000" value="#990000">暗夜兴奋</option>
<option style="COLOR: #000099" value="#000099">深蓝忧郁</option>
<option style="COLOR: #999900" value="#999900">卡其制服</option>
<option style="COLOR: #ff9900" value="#FF9900">镏金岁月</option>
<option style="COLOR: #0099ff" value="#0099FF">湖波荡漾</option>
<option style="COLOR: #9900ff" value="#9900FF">发亮蓝紫</option>
<option style="COLOR: #ff0099" value="#FF0099">爱的暗示</option>
<option style="COLOR: #006600" value="#006600">墨绿深沉</option>
<option style="COLOR: #333333" value="#333333">灰色轨迹</option>
<option style="COLOR: #999999" value="#999999">伦敦灰雾</option>
</select>
<input type=submit value="说话" style="background-color:#ffffff">
<a href=".SCRIPT."?action=logoff title=退出聊天室
target=_top onclick="return confirm("你确定要退出聊天室吗?")">退出</a>
</form>
<script>function check(){if(document.chat.chatmsg.value=="")
{;alert("请输入聊天信息!");return false;}return true;}</script>
";
}
源代码网整理以下//保存说话
if ($action=="save")
{
if ($_POST["chatmsg"]!="") {
save_chat($_POST["chatmsg"], $_SESSION["username"], $_POST["usercolor"]);
}
header("location:http://www.chinaz.com/Program/PHP/".SCRIPT."?action=say");
}
源代码网整理以下//显示聊天记录
if ($action=="show")
{
echo "<body style="font-size:12px" onload="scrollit()">";
echo "<META HTTP-EQUIV=REFRESH
CONTENT="".REF_TIME.";URL=http://www.chinaz.com/Program/PHP/".SCRIPT."?action=show">";
if (file_exists(CHAT_NOTE)) {
$chat_msg = @file_get_contents(CHAT_NOTE);
echo $chat_msg;
} else {
echo "目前没有人说话";
}
}
源代码网整理以下//退出聊天室
if ($action=="logoff")
{
unset($_SESSION["username"]);
session_destroy();
header("location:".SCRIPT);
}
源代码网整理以下/* 基本函数 */
源代码网整理以下//保存聊天记录函数
function save_chat($msg, $user, $color)
{
if (!$fp = fopen(CHAT_NOTE, "a+")) {
die("创建聊天记录文件失败, 请检查是否有权限.");
}
$msg = htmlspecialchars($msg);
$msg = preg_replace("/([http|ftp://])*([a-zA-])
+.([a-zA-Z0-9_-])+.([a-zA-Z0-9_-])+(a-zA-Z0-9_)*/", "
<a href=\0 target=_blank>\0</a>", $msg);
$msg = preg_replace("/([a-zA-Z0-9_.])+@([a-zA-Z0-9-])
+.([a-zA-Z0-9-]{2,4})+/", "<a href=mailto:\0>\0</a>", $msg);
$msg = date("H:i:s")." [".$user."]说:
<font color="".$color."">".$msg."</font><br>
";
if (!fwrite($fp, $msg)) {
die("写入聊天记录失败.");
}
fclose($fp);
}
//写在线人信息
function save_online($user, $ip)
{
if (!$fp = fopen(ONLINE_LIST, "a+")) {
die("创建在线列表文件失败, 请检查是否有权限.");
}
$user = str_replace("|", "", $user);
$line = $user."|".$ip."|".time()."
";
if (!fwrite($fp, $line)) {
die("写入在线列表失败.");
}
fclose($fp);
}
//获取在线人数
function get_online_sum()
{
if (file_exists(ONLINE_LIST)) {
$online_msg = file(ONLINE_LIST);
return count($online_msg);
} else {
return 0;
}
}
//获取当前登陆用户IP
function get_client_ip()
{
if ($_SERVER["REMOTE_ADDR"]) {
$cip = $_SERVER["REMOTE_ADDR"];
} elseif (getenv("REMOTE_ADDR")) {
$cip = getenv("REMOTE_ADDR");
} elseif (getenv("HTTP_CLIENT_IP")) {
$cip = getenv("HTTP_CLIENT_IP");
} else {
$cip = "unknown";
}
return $cip;
}
?>
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