help with detect and redirect code

[azukah]

i'm trying to use this code to detect if the browser of the user is IE (any version) and id true (if it is IE), then it's redirected to an error page; otherwise, it's ok and sent ot the index. I get the following error...

Warning: Cannot modify header information - headers already sent by (output started at /index.php:1) in /xie.php on line 13

 

any ideas.. ???

 

<?php
function ae_detect_ie()
{
if (isset($_SERVER['HTTP_USER_AGENT']) && 
    (strpos($_SERVER['HTTP_USER_AGENT'], 'MSIE') !== false))
        return true;
    else
        return false;
}
if (ae_detect_ie()) {
header("Location: error.php");
} else {
header("Location: index.php");
}
?>

[trq]

Have you read the 'HEADER ERRORS' sticky?

[azukah]

yes, i did and i have no spaces or extra characters.

[trq]

yes, i did and i have no spaces or extra characters.

 

You MUST have output. The error even tells you its on line 1 of index.php.

[azukah]

that's what i don't get ... line 1 of my index is

 

<?php require_once('xie.php');?>

 

[newbtophp]

that's what i don't get ... line 1 of my index is

 

<?php require_once('xie.php');?>

 

Then check xie.php! 

[azukah]

i did check that one too and nothing... i guess i'll check again tomorrow with fresh eyes. i can't find anything right now - thanks for the help mate!

 

cheers.

[Pikachu2000]

If the code above was copy/pasted from your script, there's a blank line above the <?php open tag.

[azukah]

no, i actually typed it all (no copy+paste). no idea what was wrong.i just moved it all to a new page and it works fine - thanks all for ur help!!