Help... "Cannot modify header information - headers already sent by"

[sh0wtym3]

I can't figure out what headers are being sent before line 8 ? There's no whitespace before the <?php tag

 

<?php
session_start();
// Only Administrators have access to view this page
$permissions = $_SESSION['permissions'];

if ($permissions !== "Administrator") {
$_SESSION['page'] = "welcome";
header("Location: /seo/");
die('');
}
?>

 

Thanks in advance

[abazoskib]

It's not about whitespace. It's about output. Is there any other output before that code?

[Mchl]

In your error message you should have information 'output started at ... '

See what's in the file/line it indicates.

[sh0wtym3]

It's not about whitespace. It's about output. Is there any other output before that code?

 

Nope that is at the very top of the php file

[sh0wtym3]

In your error message you should have information 'output started at ... '

See what's in the file/line it indicates.

 

Output started at line 10, here are lines 9-11:

die('');
}
?>

 

Once again the full code so you can put it into context:

<?php
session_start();
// Only Administrators have access to view this page
$permissions = $_SESSION['permissions'];

if ($permissions !== "Administrator") {
$_SESSION['page'] = "welcome";
header("Location: /seo/");
die('');
}
?>

[sh0wtym3]

I think I figured out why there would be output, that code is part of 'pageB.php' which is nested inside of 'pageA.php' like so:

 

<?php
// Page A code blah blah blah

require 'pageB.php';

// More page A code blah blah blah
?>

 

The output is coming from page A so I know how to fix the problem, thanks for the assistance