Snippet Name: Super-mini Chat room
Description: A super small, super simple chat room. No security, so use at your own risk.
Comment: (none)
Language: PHP
Highlight Mode: PHP
Last Modified: March 01st, 2009
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<?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>
</center>
</body>
</html>
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