欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  IT编程

值得分享的php+ajax实时聊天室

程序员文章站 2024-04-02 16:54:16
非常经典的一款php+ajax实时聊天室,其中使用php文件保存聊天记录,按天划分,php实现聊天的功能只有一个文件,整合了php与ajax技术,也就是说只要运行这一个文件...

非常经典的一款php+ajax实时聊天室,其中使用php文件保存聊天记录,按天划分,php实现聊天的功能只有一个文件,整合了php与ajax技术,也就是说只要运行这一个文件就可以启动php的聊天室了,关于代码上面也是非常的简单,但是实现了聊天室一般的功能,聊天时的昵称,更改昵称的颜色,聊天字号大小,字体,加粗,窗体的变大变小等等,如果你想搞个聊天室来玩玩,这个源码完全可以满足普通的需求。

具体的效果看如下图:

值得分享的php+ajax实时聊天室

关键代码:

<?php
header('content-type:text/html;charset=utf-8');
//显示在线用户
$disonline = 1;
//新登陆时显示最近内容的条数(默认为30条)
$leastnum = 30;
//默认的房间名(默认是每天换一个文件),如果去掉d,则是每月换一个文件
$room = date("y-m-d");
//房间保存路径,必须仿quot;/"结尾,可以丿quot;../",等
$roomdir = "rooms/";
//编码方式
$charset = "utf-8";
//客户端最大显示内容条数(建议不要太大)
$maxdisplay = 300;
//语言包
$lang = array(
//聊天室描述
"description"=>"聊天室.", 
//聊天室标题
"title"=>"welcome...!",
//第一个到聊天室的欢迎
"firstone"=>"<span style='font-size:16px;color:blue;'>welcome...!</span>", 
//当信息有禁止内容时显示
"ban" => array('*', '*', '*', 'fuck', '叼', '你妈的', '他妈的'),
//关键字
"keywords"=>"welcome...!",
//发言提示
"hereyourwords" => "在这里发言!"
);

$touchs = 10;
$title = $lang["title"];
$earlier = 10;
$description = $lang["description"];
$origroom = $room;
$least = ($_get["dis"])?intval($_get["dis"]):$leastnum;
if ($_get["room"]) $room = $_get["room"];
$room = checkfilename($room);
if (!$room) $room = $origroom;
$filename = $roomdir.$room.".dat.php";
$datafile = $roomdir.$room.".php";

if (!is_dir($roomdir)) {
 @mkdir($roomdir, 0777) or exit('no this dir.');
}
if(file_exists($filename)){
 if ((int)filemtime($filename) + 1800 < time()) {
 unlink($filename);
 }
}

if (!file_exists($filename)) @file_put_contents($filename,'<?php die();?>'."\n".time()."|".$lang["firstone"]."\n");
if (!file_exists($datafile)) @file_put_contents($datafile,'<?php die();?>'."\n");
$action = $_get["action"];

if (!function_exists("file_get_contents"))
{
 function file_get_contents($path)
 {
 if (!file_exists($path)) return false;
 $fp=@fopen($path,"r");
 $all=fread($fp,filesize($path));
 fclose($fp);
 return $all;
 }
}

if (!function_exists("file_put_contents"))
{
 function file_put_contents($path,$val)
 {
 $fp=@fopen($path,"w");
 fputs($fp,$val);
 fclose($fp);
 return true;
 }
}

function checkfilename($file)
{
 if (!$file) return "";
 $file = trim($file);
 $a = substr($file,-1);
 $file = eregi_replace("^[.\\\/]*","",$file);
 $file = eregi_replace("[.\\\/]*$","",$file);
 $arr = array("../","./","/","\\","..\\",".\\");
 $file = str_replace($arr,"",$file);
 return $file;
}

function get_ip()
{
 global $_server;
 if ($_server)
 {
 if ( $_server[http_x_forwarded_for] )
 $realip = $_server["http_x_forwarded_for"];
 else if ( $_server["http_client_ip"] )
 $realip = $_server["http_client_ip"];
 else
 $realip = $_server["remote_addr"];
 }
 else
 {
 if ( getenv( 'http_x_forwarded_for' ) )
 $realip = getenv( 'http_x_forwarded_for' );
 else if ( getenv( 'http_client_ip' ) ) 
 $realip = getenv( 'http_client_ip' );
 else
 $realip = getenv( 'remote_addr' );
 }
 return $realip;
}

function array2json($arr)
{
 if (function_exists('json_encode')) return json_encode($arr);
 $keys = array_keys($arr);
 $isarr = true;
 $json = "";
 for($i=0;$i<count($keys);$i++)
 {
 if ($keys[$i] !== $i)
 {
 $isarr = false;
 break;
 }
 }
 $json = $space;
 $json.= ($isarr)?"[":"{";
 for($i=0;$i<count($keys);$i++)
 {
 if ($i!=0) $json.= ",";
 $item = $arr[$keys[$i]];
 $json.=($isarr)?"":$keys[$i].':';
 if (is_array($item))
 $json.=array2json($item);
 else if (is_string($item))
 $json.='"'.str_replace(array("\r","\n"),"",$item).'"';
 else $json.=$item;
 }
 $json.= ($isarr)?"]":"}";
 return $json;
}

if ($action == "write")
{
 $color = $_get['color'];
 if (!eregi("[0-9a-fa-f]{6}",$color) || $color == "#000000") $color = "";
 $color = "#".$color;
 $size = intval($_get["size"]);
 $arr = @file("php://input");
 $name = str_replace(array("\n","\r"),"",$arr[0]);
 $ip = get_ip();
 if ($disonline)
 {
 $onlines = @file_get_contents($datafile);
 $s1 = "|{$name}|{$ip}|";
 if (strpos($onlines,$s1) === false)
 {
 if (strpos($onlines,"|".$name."|") === false)
 {
 $fp = @fopen($datafile,"a+");
 if ($fp)
 {
 if (@flock($fp, lock_ex))
 {
 @fputs($fp,time()."|".time().$s1."\n");
 @flock($fp, lock_un);
 }
 @fclose($fp);
 }
 }
 else
 {
 echo "name";
 die();
 }
 }
 }

 $s = "";
 $style = "";
 $font = $_get["font"];
 if ($font == "songti") $font = "宋体";
 else if ($font == "heiti") $font = "黑体";
 else if ($font == "kaiti") $font = "楷体_gb2312";
 else $font = "";
 $style .= (!$font)?"":"font-family:".$font.";";
 $style .= (!$_get["bold"])?"":"font-weight:bold;";
 $style .= (!$color || $color == "#")?"":"color:{$color};";
 $style .= (!$size || $size == "16")?"":"font-size:{$size}px;";
 $t = time();
 for($i = 1;$i<count($arr);$i++)
 {
 $content = $arr[$i];
 $content = str_replace(array("\n","\r"),"",$content);
 if ($content == "") continue;
 $content = preg_replace("!<img\s+(.*?)/>!i", "[img $1/]", $content);
 $content = str_replace(array('<', '>'), array('<', '>'), $content);
 $content = preg_replace("!\[img (.*?)/\]!i", "<img $1/>", $content);
 $content = str_replace($lang['ban'], '', $content);
 $content = ($style)?"<span style='{$style}'>{$content}</span>":$content;
 $ubbarray = array('[:ani_wink:]',
 '[:big_eyes:]',
 '[:cool:]',
 '[:cry:]',
 '[:eye_roll:]',
 '[:grin:]',
 '[:happy:]',
 '[:not_impressed:]',
 '[:smile:]',
 '[:smile_eyes:]',
 '[:stickout:]',
 '[:straight:]',
 '[:surprised:]',
 '[:unhappy:]',
 '[:wink:]');
 $content = str_replace($ubbarray, 
 array('<img src="smilies/ani_wink.gif" />',
 '<img src="smilies/big_eyes.gif" />',
 '<img src="smilies/cool.gif" />',
 '<img src="smilies/cry.gif" />',
 '<img src="smilies/eye_roll.gif" />',
 '<img src="smilies/grin.gif" />',
 '<img src="smilies/happy.gif" />',
 '<img src="smilies/not_impressed.gif" />',
 '<img src="smilies/smile.gif" />',
 '<img src="smilies/smile_eyes.gif" />',
 '<img src="smilies/stickout.gif" />',
 '<img src="smilies/straight.gif" />',
 '<img src="smilies/surprised.gif" />',
 '<img src="smilies/unhappy.gif" />',
 '<img src="smilies/wink.gif" />'), 
 $content);
 $s.= $t."|".$name.":".$content."\n";
 }
 if (!$name) die("no name!!");
 if (!$s) die("no content!!");
 $fp = @fopen($filename,"a+");
 if (!$fp) die("repeat");
 if (@flock($fp, lock_ex))
 {
 @fputs($fp,$s);
 @flock($fp, lock_un);
 }
 else die("repeat");
 @fclose($fp);
 echo "ok";
}
else if (trim($action) == "read")
{
 if (get_magic_quotes_runtime()) {
 set_magic_quotes_runtime(0);
 }
 $first = $_get["first"];
 $lastmod = intval($_get["lastmod"]);
 $alastmod = @filemtime($filename);
 $name = file_get_contents("php://input");
 $name = str_replace("\n","",$name);
 $ip = get_ip();
 $json = array();
 $json["lastmod"] = $alastmod;
 $item = array();
 $newonline = array();
 $offline = array();

 $lines = @file($filename);
 if ($alastmod > $lastmod && !$first)
 {
 foreach($lines as $l)
 {
 $item2 = array();
 $l = str_replace(array("\n","\r"),"",$l);
 if (strpos($l,"|") === false) continue;
 $arr = explode("|",$l);
 $t = intval($arr[0]);
 if ($t > $lastmod)
 {
 $item2["time"] = date("h:i:s",$t);
 $item2["word"] = stripslashes($arr[1]);
 $item[] = $item2;
 }
 }
 }
 else if ($first)
 {
 $item = array();
 $total = count($lines);
 for($i=$total-1;$i>=$total-$least;$i--)
 {
 if ($i<=0) break;
 $item2 = array();
 $l = str_replace(array("\n","\r"),"",$lines[$i]);
 if (strpos($l,"|") === false) continue;
 $arr = explode("|",$l);
 $t = intval($arr[0]);
 $item2["time"] = (date("m-d",time()) == date("m-d",$t))?date("h:i:s",$t):date("m-d h:i",$t);
 $item2["word"] = stripslashes($arr[1]);
 $item[] = $item2;
 }
 $item = array_reverse($item);
 }

 $s = "";
 $nt = time();
 $onlines = array();
 if($disonline)
 {
 $users = @file($datafile);
 foreach($users as $l)
 {
 $l = str_replace(array("\r","\n"),"",$l);
 if (strpos($l,"|") === false)
 {
 $s.=$l."\n";
 continue;
 }
 $arr = explode("|",$l);
 if ($nt - intval($arr[1]) < $touchs*2+1)
 {
 if (trim($name) == trim($arr[2]))
 {
 $s.= $arr[0]."|".time()."|".$name."|".get_ip()."|\n";
 }
 else $s.=$l."\n";
 $onlines [] = $arr[2];
 }
 }
 @file_put_contents($datafile,$s);
 $json["onlines"] = $onlines;
 }
 $json["lines"] = $item;
 echo array2json($json);
 if (!get_magic_quotes_runtime()) {
 set_magic_quotes_runtime(1);
 }
}
else
{
?>

安装说明:

因为这一款php+ajax实时聊天室的聊天记录是保存到php文件中的,所以不用导入数据库,安装自然也就方便多了,只需要将下载的文件包解压缩到可以运行php的根目录下即可.

源码下载:

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持。