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Posted 20 November 2008 - 07:57 PM
First: I have a chat script that uses php, javascript, and html, it currently uses meta refresh to get the info. Is there any way to get it to get the info without meta refresh?
Here is the code for it.
(hey, u get a simple chat script for free!! lol)
Chat.php
<?php session_start(); if(!$_SESSION['jenChat_UserID']){ header("Location: ./login.php"); exit; } else if(date("YmdHis",time() - 5) > $_SESSION['jenChat_Prevtime']){ header("Location: ./login.php?logout=true"); exit; } ?><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US"> <head> <title>jenChat</title> <style type="text/css"> #chatContents{height:300px; width:200px;} </style> <script type="text/javascript"><!-- var cDocument; var cWindow; window.onload = chat_init; function chat_init(){ var chatContents = document.getElementById("chatContents"); //set up a reference to the window object of the IFRAME if(window.frames && window.frames["chatContents"]) //IE5, Konq, Safari cWindow = window.frames["chatContents"]; else if(chatContents.contentWindow) //IE5.5+, Moz 1.0+, Opera cWindow = chatContents.contentWindow; else //Moz < 0.9 (Netscape 6.0) cWindow = chatContents; //set up a reference to the document object of the IFRAME if(cwindow.document) //Moz 0.9+, Konq, Safari, IE, Opera cDocument = cwindow.document; else //Moz < 0.9 (Netscape 6.0) cDocument = cwindow.contentDocument; } function insertMessages(content){ //place the new messages in a div var newDiv = cdocument.createElement("DIV"); newDiv.innerHTML = content; //append the messages to the contents cdocument.getElementById("contents").appendChild(newDiv); //scroll the chatContents area to the bottom cwindow.scrollTo(0,cdocument.getElementById("contents").offsetHeight); } function resetForm(){ document.getElementById("message").value = ""; document.getElementById("message").focus(); }//--> </script> </head> <body> <h1>jenChat</h1> <a href="login.php?logout=true">Logout</a><br /> <iframe id="chatContents" name="chatContents" src="contents.html"></iframe> <form target="post" method="post" action="post.php"> <input type="text" name="message" id="message" style="width: 250px" /> <input type="submit" value="Send" class="submit" /> </form> <iframe id="post" name="post" src="post.php" style="width: 0px; height: 0px; border: 0px;"></iframe> <iframe id="thread" name="thread" src="thread.php" style="width: 0px; height: 0px; border: 0px;"></iframe> </body> </html>
Ok, heres init.php
<?php session_start(); /* * replace the parameters used here with the appropriate information * for your system. */ $dbhandle = mysql_connect("NO","STOP","ASKING"); mysql_select_db("GOD!!); /* * IMPORTANT: magic quotes are bad. Ideally, you should turn them off * in your php.ini, but if you are unable to, the code below will fix * the $_POST array for you. * * See http://www.php.net/manual/en/security.magicquotes.php * * If you aren't using prepared statements (mysqli, Pear:DB) or manually * escaping every variable that goes into a query, you are asking to get * pwned. For maximum portability, jenChat uses mysql_real_escape_string, * but prepared statements are generally the way to go. * * If you didn't understand that last paragraph (or even if you * did), read up on SQL Injection and why you need to worry about it. * * http://www.unixwiz.net/techtips/sql-injection.html * * OK, carry on */ if(get_magic_quotes_gpc()){ $_POST = array_map('stripslash', $_POST); } function stripslash($value){ if(is_array($value)) return array_map('stripslash', $value); else return stripslashes($value); } ?>
Next, the login.php
<?php require_once('init.php'); if($_GET['logout']){ //they are logging out mysql_query("DELETE FROM jenChat_Users WHERE UserID = " . $_SESSION['jenChat_UserID']); $_SESSION = array(); if(isset($_COOKIE[session_name()])){ setcookie(session_name(), '', 1, '/'); unset($_COOKIE[session_name()]); } session_destroy(); // To delete the old session file header("Location: ./login.php"); exit; } if(sizeof($_POST)){ $expiretime = date("YmdHis", time() - 5); if($_SERVER['REQUEST_METHOD'] == 'POST'){ if(preg_match('/^[_a-z0-9-]+$/i',$_POST['who'])){ $result = mysql_query("SELECT UserID FROM jenChat_Users WHERE UserName = '".mysql_real_escape_string($_POST['who'])."' AND LastUpdate > " . $expiretime); if(!mysql_fetch_array($result)){ mysql_query("DELETE FROM jenChat_Users WHERE LastUpdate <= " .$expiretime); mysql_query("DELETE FROM jenChat_Messages WHERE Posted <= " . $expiretime); mysql_query("INSERT INTO jenChat_Users(UserName,LastUpdate) VALUES ('".mysql_real_escape_string($_POST['who'])."'," . date("YmdHis",time()).")"); $_SESSION['jenChat_UserID'] = mysql_insert_id(); $_SESSION['jenChat_Prevtime'] = date("YmdHis",time()); header("Location: ./chat.php"); exit; } else $error = "A user with the same handle is currently in the chat room. Please try a different handle."; } else $error = "Handles may only contain letters, numbers, hyphens and dashes."; } else $error = "You must enter a handle (screen name) to enter the chat room."; } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US"> <head> <title>jenChat</title> </head> <body> <h1>jenChat</h1> <form class="grid" method="post" action="./login.php"> Login<br> <label for="who">Handle: </label><input type="text" id="who" name="who" value="<? echo htmlspecialchars($_POST['who']) ?>" /> <input type="submit" value="Join Chat" class="submit" /> </form> <p class="error"> <? echo htmlspecialchars($error); ?> </p> </body> </html>
Next, Post.php
<?php require_once('init.php'); /* make sure the person is logged in. */ if(!isset($_SESSION['jenChat_UserID'])) exit; /* make sure something was actually posted. */ if(sizeof($_POST)){ $expiretime = date("YmdHis",time() - 5); /* delete expired messages. */ mysql_query("DELETE FROM jenChat_Messages WHERE Posted <= '" . $expiretime . "'"); /* delete inactive participants. */ mysql_query("DELETE FROM jenChat_Users WHERE LastUpdate <= '" . $expiretime. "'"); /* post the message. */ mysql_query("INSERT INTO jenChat_Messages (UserID,Posted,Message) VALUES( " . $_SESSION['jenChat_UserID'] . ", '" . date("YmdHis", time()) . "', '" . mysql_real_escape_string(strip_tags($_POST['message'])) . "' )"); header("Location: post.php"); exit; } ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US"> <head> <script type="text/javascript"><!-- if(parent.resetForm) parent.resetForm(); //--> </script> </head> </html>
Next and last
thread.php
<?php require_once('init.php'); /* make sure the person is logged in. */ if(!isset($_SESSION['jenChat_UserID'])) exit; $currtime = date("YmdHis",time()); /* maintains this user's state as active. */ mysql_query("UPDATE jenChat_Users SET LastUpdate = '" . $currtime . "' WHERE UserID = " . $_SESSION['jenChat_UserID']); /* grab any messages posted since the last time we checked. Notice we say >= and <. This is to guarantee that we don't miss any messages that are posted at the same instant this query is executed.*/ $sql = "SELECT Message,UserName FROM jenChat_Messages INNER JOIN " . "jenChat_Users ON jenChat_Messages.UserID = jenChat_Users.UserID WHERE Posted >= '" . $_SESSION['jenChat_Prevtime'] . "' AND Posted < '" . $currtime . "' ORDER BY Posted"; $res = mysql_query($sql); ?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-US"> <head></head> <body> <? if(mysql_num_rows($res)){ echo '<div id="contents">'; while($row = mysql_fetch_array($res)){ echo '<div><strong>' . htmlspecialchars($row['UserName']) . ': </strong>' . htmlspecialchars($row['Message']) . '</div>'; } echo '</div>'; } $_SESSION['jenChat_Prevtime'] = $currtime; ?> <script type="text/javascript"><!-- if(parent.insertMessages && document.getElementById("contents")) parent.insertMessages(document.getElementById("contents").innerHTML); setTimeout("getMessages()", 1000); //poll server again in one second function getMessages(){ document.location.reload(); } //--> </script> </body> </html>
So, if u think u could make this more simple, pls let me now. I have looked through it and can't figure it out. Thx!
Also, if u want the script, It's right here:
The chat script
Sry bout the small code boxes
My first post
Also, just a little humor...
Why does it say im a new di** head?
Attached File(s)
-
jenChat.zip (5.04K)
Number of downloads: 40
This post has been edited by laces12: 20 November 2008 - 08:04 PM
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