Undefined index and Undefined variable errors
Posted: Wed Mar 12, 2008 12:51 pm
Hi all,
I`m getting this error
Notice: Undefined index: user in c:\inetpub\wwwroot\login.php on line 97
Notice: Undefined variable: message in c:\inetpub\wwwroot\login.php on line 102
Could someone please tell me where I did wrong? Here is the Code, Thanks a lot
I`m getting this error
Notice: Undefined index: user in c:\inetpub\wwwroot\login.php on line 97
Notice: Undefined variable: message in c:\inetpub\wwwroot\login.php on line 102
Could someone please tell me where I did wrong? Here is the Code, Thanks a lot
Code: Select all
<?php
function confirmUser($username, $password)
{
global $conn;
/* Add slashes if necessary (for query) */
if(!get_magic_quotes_gpc()) {
$username = addslashes($username);
}
/* Verify that user is in database */
$q = "select Password from users where upper(User_Login)=upper('$username') ";
$result = mysql_query($q,$conn);
if(!$result || (mysql_numrows($result) < 1)){
return 1; //Indicates username failure
}
/* Retrieve password from result, strip slashes */
$dbarray = mysql_fetch_array($result);
$dbarray['Password'] = stripslashes($dbarray['Password']);
$password = stripslashes($password);
/* Validate that password is correct */
if(strtoupper($password) == strtoupper($dbarray['Password'])){
return 0; //Success! Username and password confirmed
}
else{
return 2; //Indicates password failure
}
}
function checkLogin()
{
/* Username and password have been set */
if(isset($_SESSION['username']) && isset($_SESSION['password']))
{
/* Confirm that username and password are valid */
if(confirmUser($_SESSION['username'], $_SESSION['password']) != 0)
{
/* Variables are incorrect, user not logged in */
unset($_SESSION['username']);
unset($_SESSION['password']);
return false;
}
return true;
}
/* User not logged in */
else
return false;
}
function displayLogin()
{
$end=false;
if(isset($_POST['sublogin']))
{
$_POST['user'] = trim($_POST['user']);
if(!$_POST['user'] || !$_POST['pass'])
$message= "You Didn't Fill In All The Required Field.";
else if(strlen($_POST['user']) > 15)
$message= "Sorry,Username Cannot Be Longer Than 15 Characters.";
else
{
//$md5pass = md5($_POST['pass']);
$md5pass = $_POST['pass'];
$result = confirmUser($_POST['user'], $md5pass);
$user=$_POST['user'];
if($result == 1)
$message= 'That User ID Doesn\'t Exist.';
else if($result == 2)
$message= 'Incorrect Password, Please Try Again.';
else
{
$_POST['user'] = stripslashes($_POST['user']);
$_SESSION['username'] = $_POST['user'];
$_SESSION['password'] = $md5pass;
// header( 'refresh: 5; url=/main.php/' );
echo "<META HTTP-EQUIV=Refresh CONTENT='0; URL=main.php'>";
$end=true;
}
}
}
if(!$end)
{
?>
<form name="form1"action="" method="post">
<table width="130" border="0" align="left" cellpadding="3" cellspacing="0">
<tr>
<td colspan="2"><h3 align="center">ULS Inventory Login</h3></td>
</tr>
<tr><td ><div align="left">User ID:</div></td><td width="100"><input name="user" type="text" onkeypress="return checkenter(window.event.keyCode)" value="<?php echo $_POST['user'] ?>" size="17" maxlength="20"></td></tr>
<tr><td><div align="left">Password:</div></td><td><input name="pass" type="password" size="17" maxlength="20" onkeypress="return checkenter(window.event.keyCode)"></td></tr>
<tr><td colspan="2" align="CENTER"><input type="submit" name="sublogin" value="Login"></td></tr>
<tr><td colspan="2" align="center"><?php echo $message?></td></tr>
</table>
</form>
<script type="text/javascript">
if(document.form1.user.value=='')
form1.user.focus();
else if(document.form1.pass.value=='')
form1.pass.focus();
else
form1.sublogin.focus();
function checkenter($key)
{
if ($key==13 && document.form3.qty.value>0)
document.form1.submit();
}
</script>
<?php
}
}
$logged_in = checkLogin();
$_SESSION['logged_in']=$logged_in;
?>