A MySQL-based mini-chat to put as a block on your pages.
By : greggory
<?php
// Contains db constants
require "cst.inc";
/*
CREATE TABLE MINICHAT (
NB tinyint(4) NOT NULL auto_increment,
LOGIN varchar(20) NOT NULL default '',
MESSAGE varchar(255) NOT NULL default '',
ITSTIME varchar(10) NOT NULL default '',
) TYPE=MyISAM;
*/
// Number of messages to print
define( "_NB_MSGS_", 10 );
// Connect
mysql_connect( $db_hostname, $db_username, $db_password );
mysql_selectdb( $db_database );
// Add message into minichat
function addMessage( $login, $message ) {
@setcookie( "minichatlogin", strip_tags( $login ) );
$login = $_COOKIE['minichatlogin'] ? $_COOKIE['minichatlogin'] :
mysql_escape_string( strip_tags( $login ) );
$message = mysql_escape_string( strip_tags( $message, '<a><b><i><u>') );
mysql_query( "INSERT INTO MINICHAT ( NB, ITSTIME, LOGIN, MESSAGE ) VALUES ( "
._NB_MSGS_.", '".
time()."', '".$login."','".$message."' )" );
mysql_query( "UPDATE MINICHAT SET NB=NB-1" );
mysql_query( "DELETE FROM MINICHAT WHERE NB < 1" );
}
// Returns messages
function getMessages() {
$rs = mysql_query( "SELECT * FROM MINICHAT ORDER BY NB" );
$ret = Array();
while ( $msg = mysql_fetch_array( $rs )) {
$ret[] = date( 'h:m', $msg['ITSTIME'] )." ".$msg['LOGIN']." >".$msg['MESSAGE'];
}
return $ret;
}
// Prints mini chat
function miniChat() {
$msgs = getMessages();
@reset( $msgs );
echo '<form method="post">
<table border="0" bgcolor="#000000" cellpadding="1">
<tr><td>
<table border="0" bgcolor="#ffffff" cellpadding="1">
';
while ( list(,$msg) = each( $msgs ))
echo "<tr><td>$msg</td></tr>";
if ( !$_COOKIE['minichatlogin'] ) {
if ( !$_POST['login'] )
echo '<tr><td>Login:<input type="text" name="login" size="6"></td></tr>';
else
echo '<input type="hidden" name="login" value="'.$_POST['login'].'">';
}
echo '
<tr><td><input type="text" name="msg" size="10"></td></tr>
<tr><td align="center"><input type="submit" value="Send"></td></tr>
</table></tr></td></table></form>';
}
// Message Posted ?
if ( isset( $_POST['msg'] )) {
addMessage( $_POST['login'], $_POST['msg'] );
}
?>
<html>
<head>
<title>Mini Chat Sample</title>
</head>
<body>
<center>
<?php miniChat(); ?>
<hr>
<a href="mailto:greggory@free.fr">Contact</a>
</center>
</body>
</html>
DISCLAIMER: The content provided in this article is not warranted or guaranteed by Developer Shed, Inc. The content provided is intended for entertainment and/or educational purposes in order to introduce to the reader key ideas, concepts, and/or product reviews. As such it is incumbent upon the reader to employ real-world tactics for security and implementation of best practices. We are not liable for any negative consequences that may result from implementing any information covered in our articles or tutorials. If this is a hardware review, it is not recommended to open and/or modify your hardware.
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