Error with login script

[Russia]

I am getting an error with my login script:

 

Error:

Warning: Cannot modify header information - headers already sent by (output started at /home/bucket/public_html/inc/config.php:7) in /home/bucket/public_html/checklogin.php on line 24

 

checklogin.php

<?php
include "inc/config.php";
// username and password sent from form
$myusername=$_POST['myusername'];
$mypassword=$_POST['mypassword'];
// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);
$sql="SELECT * FROM `admin` WHERE username='$myusername' and password='$mypassword'";
$result=mysql_query($sql);
// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row
if($count==1){
// Register $myusername, $mypassword and redirect to file "accounts.php"
session_register("myusername");
session_register("mypassword");
header("location:accounts.php");
}
else 
{
header( 'Location: accounts-login.php' ) ;
}
?>

 

Does anyone spot the problem?

[farkewie]

(output started at /home/bucket/public_html/inc/config.php:7)

 

So what does line 7 in config.php say?

 

 

[rvdb86]

This usually happens becuase you have a error in you sql query and the error gets printed before you use the header() function. Like farkewie suggested, check line 7, and it may be worthwhile to check you sql query