[cobalt-users] PHP index error

["satan" <satan@xxxxxxxxxxxxxxxx>]

Hi,
anyone know what cause this error in a php login file:



Warning: Undefined index: username in /home/sites/site1/web/login.php on
line 12



I have a hosting and the script works fine there but not on my raq4 ?? Do i
need special setting in the php.ini file ??

What can be so different on the raq4 to generate that ? Maybe i did a
mistake changing the value, but i did not see anything.Also, the shopping
cart stay always empty. I know this look to be more a php issues but i
hoping someone here know the solution. It look to be related with setting
done on cobalt raq  .


The code is:
**************************************************
<?
/* login.php (c) 2000 Ying Zhang (ying@xxxxxxxxxxxxxxx)
 *
 * TERMS OF USAGE:
 * This file was written and developed by Ying Zhang (ying@xxxxxxxxxxxxxxx)
 * for educational and demonstration purposes only.  You are hereby granted
the
 * rights to use, modify, and redistribute this file as you like.  The only
 * requirement is that you must retain this notice, without modifications,
at
 * the top of your source code.  No warranties or guarantees are expressed
or
 * implied. DO NOT use this code in a production environment without
 * understanding the limitations and weaknesses pretaining to or caused by
the
 * use of these scripts, directly or indirectly. USE AT YOUR OWN RISK!
 */

/***************************************************************************
***
 * MAIN

****************************************************************************
*/

include("application.php");

/* form has been submitted, check if it the user login information is
correct */
if (match_referer() && isset($HTTP_POST_VARS)) {
 $user = verify_login($HTTP_POST_VARS["username"],
$HTTP_POST_VARS["password"]);

 if ($user) {
  $SESSION["user"] = $user;
  $SESSION["ip"] = $REMOTE_ADDR;

  /* if wantsurl is set, that means we came from a page that required
   * log in, so let's go back there.  otherwise go back to the main page */
  $goto = empty($SESSION["wantsurl"]) ? $CFG->wwwroot :
$SESSION["wantsurl"];
  header("Location: $goto");
  die;

 } else {
  $errormsg = "Invalid login, please try again";
  $frm["username"] = $HTTP_POST_VARS["username"];
 }
}

include("$CFG->templatedir/login_form.php");

/***************************************************************************
***
 * FUNCTIONS

****************************************************************************
*/

function verify_login($username, $password) {
/* verify the username and password.  if it is a valid login, return an
array
 * with the username, firstname, lastname, and email address of the user */

 $qid = db_query("
 SELECT username, firstname, lastname, email, priv
 FROM users
 WHERE username = '$username' AND password = '" . md5($password) . "'
 ");

 return db_fetch_array($qid);
}

?>
****************************************************************************
*

\






This is application.php
*************************************************************
<?
/* application.php (c) 2000 Ying Zhang (ying@xxxxxxxxxxxxxxx)
 *
 * TERMS OF USAGE:
 * This file was written and developed by Ying Zhang (ying@xxxxxxxxxxxxxxx)
 * for educational and demonstration purposes only.  You are hereby granted
the
 * rights to use, modify, and redistribute this file as you like.  The only
 * requirement is that you must retain this notice, without modifications,
at
 * the top of your source code.  No warranties or guarantees are expressed
or
 * implied. DO NOT use this code in a production environment without
 * understanding the limitations and weaknesses pretaining to or caused by
the
 * use of these scripts, directly or indirectly. USE AT YOUR OWN RISK!
 */

/* turn on verbose error reporting (15) to see all warnings and errors */
error_reporting(15);

/* define a generic object */
class object {};

/* setup the configuration object */
$CFG = new object;

$CFG->dbhost = "localhost";
$CFG->dbname = "mymarket";
$CFG->dbuser = "myuser";
$CFG->dbpass = "mypassword";

$CFG->wwwroot     = "/mymarket";
$CFG->dirroot     = "/home/httpd/private/mymarket";
$CFG->templatedir = "$CFG->dirroot/templates";
$CFG->libdir      = "$CFG->dirroot/lib";
$CFG->imagedir    = "$CFG->wwwroot/images";
$CFG->icondir    = "$CFG->imagedir/icons";
$CFG->bannerdir    = "$CFG->imagedir/banners";

$CFG->wordlist    = "$CFG->libdir/wordlist.txt";
$CFG->support     = "support@xxxxxxxxxxxx";

/* define database error handling behavior, since we are in development
stages
 * we will turn on all the debugging messages to help us troubleshoot */
$DB_DEBUG = true;
$DB_DIE_ON_FAIL = true;

/* load up standard libraries */
require("$CFG->libdir/stdlib.php");
require("$CFG->libdir/dblib.php");
require("$CFG->libdir/mymarket.php");
require("$CFG->libdir/cart.php");

/* setup some global variables */
$ME = qualified_me();

/* start up the sessions, to keep things clean and manageable we will just
 * use one array called SESSION to store our persistent variables.   */
session_start();
session_register("SESSION");
session_register("CART");

/* initialize the SESSION variable if necessary */
if (! isset($SESSION)) {
 $SESSION = array();
}

/* initialize the CART objct if necessary */
if (! isset($CART)) {
 $CART = new Cart;
}

/* connect to the database */
db_connect($CFG->dbhost, $CFG->dbname, $CFG->dbuser, $CFG->dbpass);
?>
************************************************************




thk in advance