Leaderboard

Hello There! I am trying to get my chat room, to automatically update the messages and data. As of right now, to see a new message, you must refresh the page. ( I learned from w3schools and don't quite get AJAX as much as I want to. :/ So if I'm way off track, please tell me. ) As always, here is the code I am using: &--#60;?php session_start(); if(!session_is_registered(myusername)){ header("location:/login/main_login.php"); } $myusername = $_SESSION['myusername']; ?&--#62; &--#60;html&--#62; &--#60;head&--#62; &--#60;link rel="SHORTCUT ICON" href="http://oi46.tinypic.com/rky444.jpg"&--#62; &--#60;title&--#62;Mbox:Chat&--#60;/title&--#62; &--#60;script type='text/javascript'&--#62; function updateChat() { var xmlhttp; if (window.XMLHttpRequest) {// code for IE7+, Firefox, Chrome, Opera, Safari xmlhttp = new XMLHttpRequest(); } else {// code for IE6, IE5 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP"); } xmlhttp.onreadystatechange = function() { if (xmlhttp.readyState == 4 && xmlhttp.status == 200) { document.getElementById("topscreen").innerHTML = xmlhttp.responseText; } } xmlhttp.open("GET",/chat/chatroom.php?error=",true); xmlhttp.send(); } &--#60;/script&--#62; &--#60;style&--#62; /*3DS SCREEN START*/ div#topscreen { border:15px solid; border-color:#1E90FF; overflow:auto; position: absolute; top: 0px; left: 0px; height: 205px; width: 290px; background-color:#FFFFFF; z-index:2; } div#bottomscreen { position: absolute; top: 218px; left: 0px; height: 212px; width: 320px; background-color:#1E90FF; } /*3DS SCREEN STOP*/ div#taskbar { background-color:silver; width:320px; height:100px; position:absolute; top:30px; z-index:5; } &--#60;/style&--#62; &--#60;meta name="viewport" content="width=320"&--#62; &--#60;/head&--#62; &--#60;body&--#62; &--#60;body onload="setInterval('updateChat()',5000);"&--#62; &--#60;!-- TOP SCREEN --&--#62; &--#60;div id="topscreen"&--#62; &--#60;?php $db_sitename="spencer_register"; $db_hostname="localhost"; $db_username="spencer_mega"; $db_password="PASSWORD HERE"; $no_of_comments="15"; /* Leave the script below as it is */ mysql_connect($db_hostname, $db_username, $db_password); mysql_select_db($db_sitename); $pagename=md5($_SERVER['PHP_SELF']); $query=mysql_query("Select * from comments where comment_on='$pagename' ORDER BY id DESC LIMIT 0, $no_of_comments"); while($fetch=mysql_fetch_array($query)) { echo "&--#60;p&--#62;&--#60;b&--#62;&--#60;sub&--#62;".$fetch['comment_by'].": &--#60;/sub&--#62;&--#60;/b&--#62;&--#60;sub&--#62;".$fetch['comment']."&--#60;/sub&--#62;&--#60;/p&--#62;"; } mysql_close(); ?&--#62; &--#60;/div id="topscreen"&--#62; &--#60;!-- BOTTOM SCREEN --&--#62; &--#60;div id="bottomscreen"&--#62; &--#60;!-- PUT STUFF ON THE TASKBAR UNDER THE DIV ID TASKBAR --&--#62; &--#60;div id="taskbar"&--#62; &--#60;a href="../homepage.php"&--#62;&--#60;img src="http://the12.squarespace.com/storage/zzzzhome.png?__SQUARESPACE_CACHEVERSION=1356027845932" width="50px" height="50px"&--#62;&--#60;/a&--#62; &--#60;/div id="taskbar"&--#62; &--#60;!-- Send input box start --&--#62; &--#60;form action="/chat/post_chat.php" method="post"&--#62; &--#60;table&--#62; &--#60;tr&--#62;&--#60;td&--#62; &--#60;/td&--#62;&--#60;td&--#62;&--#60;input type="hidden" name="comment_on" size="" readonly="readonly" value="&--#60;?php print md5($_SERVER['PHP_SELF']); ?&--#62;"/&--#62;&--#60;/td&--#62;&--#60;/tr&--#62; &--#60;input type="hidden" name="comment_by" value="&--#60;?php echo $myusername;?&--#62;"/&--#62; &--#60;tr&--#62;&--#60;td&--#62;&--#60;input name="comment" size="33" maxlength="255" &--#62;&--#60;input type="submit" value="Send!" /&--#62;&--#60;/td&--#62;&--#60;/tr&--#62; &--#60;br/&--#62;&--#60;br/&--#62;&--#60;br/&--#62;&--#60;br/&--#62;&--#60;br/&--#62;&--#60;br/&--#62;&--#60;br/&--#62;&--#60;br/&--#62; &--#60;tr&--#62;&--#60;td&--#62;&--#60;/td&--#62;&--#60;td&--#62;&--#60;/td&--#62;&--#60;/tr&--#62; &--#60;/table&--#62; &--#60;/form&--#62; &--#60;/div id="bottomscreen"&--#62; &--#60;/body&--#62; &--#60;/html&--#62; Yeah I know. =P Some messy coding, but I'm working on it. Alright, well thanks in advance! ~ Spencer

2:49:40 PM - Shinryuu_: Mega_: '' don't process variables 2:49:47 PM - Shinryuu_: only "" 2:53:00 PM - Shinryuu_: one way to do it is to break out of the parser first, ?><div id="welcome_user"><?php echo "Welcome, $username"; ?></div> <?php 2:53:38 PM - Shinryuu_: Mega_: otherwise you have to hack the crap out of it with the concat operator . For future reference.