CODE:

CREATE TABLE `chat` (
`id` int(11) NOT NULL auto_increment,
`username` varchar(25) NOT NULL default '',
`message` text NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM DEFAULT CHARSET=latin1 AUTO_INCREMENT=76 ;

CODE:

var xmlHttp //setting a var for the xmlhttp request

function chat(username) //creating the function...
{

xmlHttp=GetXmlHttpObject() //setting the var to a real request
if (xmlHttp==null) //if it cants get the xml object
{
alert ("Browser does not support HTTP Request") //tell the user
return //dont do the rest of the script
} //end of statement
var url="chat.php" //where you want to send ur req to...
url=url+"?q="+username //making it so u can fetch the data
url=url+"&sid="+Math.random() //adding session id
xmlHttp.onreadystatechange=stateChanged //get response
xmlHttp.open("GET",url,true) //send it via get
xmlHttp.send(null)
}

function stateChanged() //function for getting response
{
if (xmlHttp.readyState==4 || xmlHttp.readyState=="complete")
{
document.getElementById("text").innerHTML=xmlHttp.responseText //change ur div tag's inner html to the response text
}
}

function GetXmlHttpObject() //function to get xml object
{
var xmlHttp=null; //var is equal to nothing.
try //attempt different browsers...
{
// Firefox, Opera 8.0+, Safari
xmlHttp=new XMLHttpRequest(); //<--- for these three browsers set xmlobject to this.
}
catch (e) //if its ie then...
{
//Internet Explorer
try
{
xmlHttp=new ActiveXObject("Msxml2.XMLHTTP"); //do this
}
catch (e)
{
xmlHttp=new ActiveXObject("Microsoft.XMLHTTP");
}
}
return xmlHttp; //send xml request to var running it
}

PHP:

<? //IMPORTANT //PUT UR DB CONNECTION HERE if (isset($_GET['q'])){ //gets the request is there is any $get= mysql_query("SELECT * FROM chat ORDER BY id DESC LIMIT 20"); //get rows from chat and limit them to 20 $get_num= mysql_num_rows($get); //how many rows are there? if ($get_num == "0"){ //if there are no rows... $return="<u><b>N</b></u>obody is talking right now."; //return the above }else{ //otherwise $return=""; //set $return to null while ($the= mysql_fetch_object($get)){ //create a loop $return .= $the->message.""; //get all the stuff from the db and echo the appropriate. } //end the loop }} //end the statements echo "$return"; //return the variable $return to the browser ?>

PHP:

<? //DB CONNECTION SCRIPT HERE INPORTANT!!! ?> <script src="ajax_functions.js"></script> <!-- basically include the ajax_functions.js script --> <script language="javascript"> setInterval("chat()",3000); //make the function chat (from ajax_functions.js run every 3 seconds </script> <b>Chat</b> <!-- below is our chat module... --> <div id="text" style="background-color:#009900; width:98%; padding:5; height:400;"> Loading Village Chat... </div> <font color="#00FF00">Speak</font> <form method="post" name="talk"> <select name="action" style="background-color:#009900; color:white; border:none;"> <option value="talk">Talk</option> <option value="action">Action</option> </select> <!-- making the form --> Name: <input type="text" style="background-color:#009900; color:white; border:none; width:300;" name="username" /> Text:  <input type="text" style="background-color:#009900; color:white; border:none; width:300;" name="chat" /> <a onclick="document.talk.submit();" style="cursor:pointer;"><u><b>S</b></u>peak</a> <a onclick="javascript:window.location.reload()" style="cursor:pointer;"><u><b>R</b></u>efresh</a> <? if (strip_tags($_POST['chat']) && strip_tags($_POST['action']) && strip_tags($_POST['username']){ $username= $_POST['username']; //get value $message= $_POST['chat']; //get values $action= $_POST['action']; //get values $message= htmlentities($message); //make it safe $username= htmlentities($username); //make it safe if (empty($message)){ //if the message value is empty echo "An empty message?"; //alert the user }else{ //otherwise if (strlen($message) > "100"){ //if message length if more than 100 echo "<font color='red'>You can't speak for that long!</font>"; //alert the user }else{ //otherwise $player_color= "black"; //maybe you want to change this? if ($action == "action"){ //if they wanna do something $output="<font color=$player_color>$fetch->title $username</font> $message"; }elseif ($action == "talk"){ //if they wanna just say something $output="<font color=$player_color>$fetch->title $username</font> says \"$message\""; } mysql_query("INSERT INTO `chat` (`id` ,`username` ,`message`) VALUES ('' , '$username', '$output')"); //insert chat into db }}} //end statements ?>

CODE:

if (strip_tags($_POST['chat']) && strip_tags($_POST['action']) && strip_tags($_POST['username'])){

CODE:

$return .= "".chat($the->message)."";

CODE:

$return .= "".chat($the->message)."";

CODE:

$return .= "$the->message";

CODE:

function chat($string){
$string= str_replace("", "<b>", $string);
$string= str_replace("", "<u>", $string);
$string= str_replace("", "</b>", $string);
$string= str_replace("", "</u>", $string);

$string .= "</b></u>"; //just for security
return $string;
}