Login Script Error

dean7 · December 12, 2010

Hi all, I've got a website, which used to work ... I have a login script which did log each user in fine, but now for some odd reason its not loggin them in, I've looked over the script quite a few times but carnt see why its not loggin then it as it use to.

<?php
session_start();
include_once"includes/config.php";

if (strip_tags($_GET['logout']) == "yes"){
session_destroy();
}elseif (isset($_SESSION['username'])){
header("Location: index2.php");
exit();
}

if ($_POST['Submit'] && strip_tags($_POST['username']) && strip_tags($_POST['password'])){
$username = mysql_real_escape_string(addslashes(strip_tags($_POST['username']))); 
$password = md5(addslashes(strip_tags($_POST['password'])));
$select = mysql_query("SELECT * FROM users WHERE online > '$timenow' ORDER by rank desc");
$num = mysql_num_rows($select);
$date = gmdate('Y-m-d h:i:s');

$ip = $REMOTE_ADDR;



///check INFO

$sql = mysql_query("SELECT * FROM users WHERE username='$username' AND password='$password' LIMIT 1"); 


$login_check = mysql_num_rows($sql); 
$inf = mysql_fetch_object($sql); 
if ($login_check == "0"){
$message="<table width='30%' class='table' align='center' cellpadding='0' cellspacing='0' border='1'>
<tr>
<td class='header' align='center'>Error</td>
</tr>
<tr>
<td align='center'>You could not be logged in.</td>
</tr>
<table><br />";
}elseif ($login_check != "0"){


if ($login_check > "0"){
if ($inf->status == "Banned"){
$encoded=md5(strtolower($username));
header("Location: banned.php?banned=$username&encoded=$encoded"); 
exit();

}
       
        session_register('username'); 
        $_SESSION['username'] = $inf->username; 
       

       
       
         $timestamp = time()+20; 
         $get = mysql_query("SELECT * FROM users WHERE username='$username' LIMIT 1");
            $got = mysql_fetch_object($get);
            
                $loginnumber = $got->loginnumber+1;
mysql_query("UPDATE users SET online='$timestamp' WHERE username='$username'");
mysql_query("UPDATE users SET lastlogin='$date' WHERE username='$username'");     
mysql_query("UPDATE users SET l_ip='$ip' WHERE username='$username'");
mysql_query("UPDATE users SET loginnumber='$loginnumber' WHERE username='$username'");
        
        header("Location: index2.php");
        
   
} else { 
    $message= "<table width='30%' class='table' align='center' cellpadding='0' cellspacing='0' border='1'>
<tr>
<td class='header' align='center'>Error</td>
</tr>
<tr>
<td align='center'>You could not be logged in.</td>
</tr>
<table><br />"; 
   
}}}

?> 
<html>
<head>
<title>Login </title>
<link href='style.css' rel='stylesheet' type='text/css'>
</head>
<body class='body'>
<form action='' method='post' name='form1'>
<?php echo ($message); ?>
<table width='702' class='table' align='center' cellpadding='0' cellspacing='0' border='1'>
<tr>
<td class='header' align='center' colspan='2'>Welcome To Speed-Drive</td>
</tr>
<tr>
<td align='center' colspan='2'><img src='images/banner.png'></td>
</tr>	
<tr>
<td class='header' align='center' colspan='2'>Speed-drive Login</td>
</tr>
<tr>
<td width='50%' align='right'>Username:</td><td width='50%' align='left'><input name="username" class='input' type="text" maxlength="15" id="username"></td>
</tr>
<tr>
<td width='50%' align='right'>Password:</td><td width='50%' align='left'><input name="password" class='input' type="password" maxlength="30" id="password"></td>
</tr>
<tr>
<td colspan='2' align='center' class='omg'><input type="submit" class='button' name="Submit" value="Submit"></td>
</tr>
<tr>
<td class='header' align='center' colspan='2'>Help</td>
</tr>
<tr>
<td align='center' colspan='2'><a href='register.php'>Register</a> .|. <a href='lost.php'>Lost Password</a> .|. <a href='tos.php'>TOS</a></td>
</tr>	
<tr>
<td align='center' colspan='2'><br /><font color='pink'><strong><h3>This website is currently <u></font><font color='red'>closed</font><font color='pink'></u>!<br /><br />You will <u></font><font color='red'>Not</font><font color='pink'></u> be able to Register untill the website is completed.<br /><br /></font></h3> Thank you for understanding.</strong></td>
</tr>	
</table>
</form>
</body>
</html>

Is there a small error in the script or is the Script fine?

Thanks for all the help given.

BlueSkyIS · December 12, 2010

is there really a blank line before the open PHP tag <?php. I suspect not, but if there is that would probably break session_start() and you should have gotten a header error and session would be broken, too.

dean7 · December 12, 2010

is there really a blank line before the open PHP tag <?php. I suspect not, but if there is that would probably break session_start() and you should have gotten a header error and session would be broken, too.

No sorry there isnt a line at the start of <?php just how I copyed my code wrong.

BlueSkyIS · December 12, 2010

that's what i figured. my next step would be to start placing echo's throughout the processing to see what's going on.

dean7 · December 12, 2010

May sound dumb, but what could you echo out on the Login Script? But on the other hand, I've found a few errors:

Notice: Undefined index: logout in /home/www/****-****.comindex.php on line 8

Notice: Undefined index: Submit in /home/www/****_****.com/index.php on line 15

Notice: Undefined variable: message in /home/www/****-****.com/index.php on line 97

Also, I've noticed its only happend since I've edited the "index2.php" script it goes to once the login is right. But I carnt see if there is something wrong with that either as thats just a basic script:

index2.php

<?php 
session_start();
include_once "includes/config.php";
include_once "includes/functions.php";
logincheck();
?>
<link href='style.css' rel='stylesheet' type='text/css'>
<head>
<title>Logged In!</title>
</head>
<link rel='shortcut icon' href='favicon.ico' />

<frameset rows='116,*' cols='*' frameborder='no' border='0'	framespacing='0'>
<frameset rows='*,25' cols='*' framespacing='0' frameborder='no' border='0'>
			<frame src='banner.php' name='topFrame' scrolling='No' noresize='noresize' id='topFrame' title='topFrame' />
				<frame src='stats.php' name='Stats' scrolling='No' noresize='noresize' id='Stats' title='Stats' />
</frameset>
<frameset rows='*' cols='130,*' framespacing='0' frameborder='no' border='0'>
<frame src='menu.php' name='leftFrame' noresize='noresize' id='leftFrame' title='leftFrame' />
	<frame src='news.php' name='mainFrame' id='mainFrame' title='mainFrame' />
</frameset>
</frameset>
<noframes></noframes>

BlueSkyIS · December 12, 2010

by echoing, i mean follow processing and check values. for instance:

echo "Before submit check <br />";
if ($_POST['Submit'] && strip_tags($_POST['username']) && strip_tags($_POST['password'])){
       echo "In submit check <br />";

// etc., etc., etc.

It's a heck of a lot easier to have PHP echo what it's doing than trying to look at the code and imagine following the logic.

BlueSkyIS · December 12, 2010

Notice: Undefined index: logout in /home/www/****-****.comindex.php on line 8

This means you are referencing $_GET['logout'] without it existing. you should check whether it's set before checking it's value.

if (isset($_GET['logout']) && strip_tags($_GET['logout']) == "yes") {

OOP · December 12, 2010

What do you get when you try to login? any errors?

dean7 · December 12, 2010

Weridly just leaving it some time while looking though the Script its accually logging me in fine for the time being :S.

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Login Script Error

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