PHP Code: Super-mini Chat room - A super small, super simple chat room. No security, so use at your own risk.

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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

<?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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