基本功能：能登陆，聊天，记录在线人数IP事件，能控制聊天的字体颜色，自动把转化聊天中网址为链接地址，能定制聊天室标题、广告信息等等。使用文本作为存储媒体，又兴趣可以参考代码，并且进行扩展。
其实PHP作为快速开发的脚本语言是很棒的！
===代码===
| 以下为引用的内容： <?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", $_SERVER['SCRIPT_NAME']); define("CHAT_NOTE", "./chat.txt"); define("ONLINE_LIST", "./online.txt"); define("REF_TIME", 5); define("CHAT_NAME", "黑夜路人聊天室"); define("AD_MSG", "今天是中国情人节, 祝大家情人节快乐!!"); //获取值 if (isset($_GET['action']) && !empty($_GET['action'])) { $action = $_GET['action']; } //如果已经登陆那么直接跳到聊天界面 if (!isset($_GET['action']) && isset($_SESSION['username'])) { header("location:".SCRIPT."?action=chat"); } //登陆提示 if (!isset($_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; } } //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"); } //开始聊天www.knowsky.com if ($action=="chat") { $online_sum = get_online_sum(); echo "<head><title>[ ".CHAT_NAME." ]</title></head><center> <body bgcolor=#C4BFB9 style='font-size:12px;'> <div style='border:1px solid #999966; width:802px;height:450'> <iframe src='".SCRIPT."?action=show' name=show_win width=800 height=450 scrolling=auto frameborder=0></iframe> </div><br> <marquee width=70% scrollamount=2> ".AD_MSG." </marquee> [当前在线：$online_sum] <iframe src='".SCRIPT."?action=say' name=say_win width=800 height=60 scrolling=no frameborder=0> "; } //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> "; } //保存说话 if ($action=="save") { if ($_POST['chatmsg']!="") { save_chat($_POST['chatmsg'], $_SESSION['username'], $_POST['usercolor']); } header("location:".SCRIPT."?action=say"); } //显示聊天记录 if ($action=="show") { echo "<body style='font-size:12px' onload='scrollit()'>"; echo "<META HTTP-EQUIV=REFRESH CONTENT='".REF_TIME.";URL=".SCRIPT."?action=show'>"; if (file_exists(CHAT_NOTE)) { $chat_msg = @file_get_contents(CHAT_NOTE); echo $chat_msg; } else { echo "目前没有人说话"; } } //退出聊天室 if ($action=="logoff") { unset($_SESSION['username']); session_destroy(); header("location:".SCRIPT); } /* 基本函数 */ //保存聊天记录函数 function save_chat($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= target=_blank> </a>', $msg); $msg = preg_replace('/([a-zA-Z0-9_.])+@([a-zA-Z0-9-]) +.([a-zA-Z0-9-]{2,4})+/', '<a href=mailto: > </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; } ?> |