Header redirection issue.

[iMoon]

I am having an issue with some scripts on my site. It won't redirect and emits an error. This occurs for only some of my scripts, but for the ones in which it does occur, it occurs 100% of the time. On a previous server, I didn't have this issue, now I do.

I get the following error:

Warning: Cannot modify header information - headers already sent by (output started at /www/zzl.org/f/a/n/fantasyboxingonline/htdocs/bg/train_stat.php:5) in /www/zzl.org/f/a/n/fantasyboxingonline/htdocs/bg/train_stat.php on line 29

Below is the code to the page that emitted the error above (Note: session_start(); IS in autoupdater.php I'm not that stupid):

<?php
require_once("../autoupdater.php");
?>
<link rel="stylesheet" type="text/css" href="/style.css"/>
<?php
if(!$_SESSION["loggedin"]) {
die("<b>You are not logged in, or you have been logged out. Please <a href=\"/login/\" target=\"_top\">login again!</a></b>");
}
$id = $_GET["id"];
if($id > 4 || $id < 1) {
die("<center><h2>An error occurred. You are trying to train an invalid statistic.</h2></center>");
}
$userid = $_SESSION["userid"];
$time = time();
$stattraining = $_SESSION["stattraining"];
if($stattraining) {
if($stattraining == 1) {
$statname = "powerful";
} elseif($stattraining == 2) {
$statname = "quick";
} elseif($stattraining == 3) {
$statname = "skilled";
} elseif($stattraining == 4) {
$statname = "durable";
}
die("<center><h2>You cannot train! You are already training $statname!</h2></center>");
}
mysql_query("UPDATE `users` SET `stattraining`='$id', `statstarttime`='$time' WHERE `userid`='$userid'", db_connect_select());
header("Location: training.php");
die();
?>

Any help or suggestions would be greatly appreciated.

-Moon

[Pikachu2000]

Did you notice the thread titled, "HEADER ERRORS - READ HERE BEFORE POSTING THEM."?

[iMoon]

Yes, I noticed it and read it carefully. I made sure my code matches what they say is the solution. I checked for whitespace, too. There is none.  Again I note that redirection worked FINE on a previous host.

[Pikachu2000]

The only way that script ever successfully redirected would be if output buffering was set to ON in php.ini. There is output before the header() redirect.

[iMoon]

Can I use ini_set(); for this? If so, could you please show me how to properly set the parameters?

[Pikachu2000]

You'd be better of to make the logic of the script such that buffering isn't needed. All you really need to do is remove the <link rel= . . . for the stylesheet. If you want to style the <h2>s in the die()s, echo the link before the die(), or in this case, I don't see a problem just using an inline style declaration.