Question

<?php
 echo $_REQUEST['uname'];
 echo $_REQUEST['pass'];

$res= $mysql_query("select * from `sec` where uname='$_REQUEST['uname']' AND    `pass`='$_REQUEST['pass']'");

if(mysql_num_rows($res)>0)
{
 header('location:home.php')
}
else
{
 header('location:index.php')
}

?>

What’s this error:header information cannot modify...
even the username and passwords are correct it is not redirecting to another page and giving this warning..
why this error is coming??

Answer 1

All the php work should be done before sending any data to the browser.
If You are using your own code you should write code in this way

<?php 
include "action/home.php"; //don't echo anything here
include "view/home.php"; 
?>

OR

If you have to redirect after the header information have already been set, you should use javascript function to redirect as

if(mysql_num_rows($res)>0)
{ ?>
  <script type="text/javascript">
  window.location="home.php";
  <script>
<?
}