stupid question about Header

[robert_gsfame]

i got this code

 

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

<?php if(isset($_POST['login'])){

if(empty($_POST['username'])||(empty($_POST['password']))){header('location:failure.php');}}?>

 

when i run it, then this statement appeared

CANNOT MODIFY HEADER(HEADER ALREADY SENT

 

can anyone find out which part is wrong?

thx

[taquitosensei]

something in config.php is outputting to the screen. Or you have a space before before one of the <?php's

[robert_gsfame]

this is what my config.php look like

 

<?php

$localhost='localhost';

$username='xxxxxx';

$password='XXXXX';

$database='YYYYYYY';

mysql_connect($localhost,$username,$password);

mysql_select_db($database);?>

 

which part is wrong, it seems i don't have any space wrongly placed

[WolfRage]

I think your database is spitting out an error, thus the headers are being sent. You should run that page by it's self.

[PFMaBiSmAd]

The whole error message states where the output is occurring that is preventing the headers from working.

 

Reading the error message would indicate where to look. The problem is either characters or content being output from the files or due to the Unicode/UTF-8 BOM characters that an editor places at the start of the file. The problem could be with either the main file or the file being included.

[ToonMariner]

the second you break out of php and output markup OR whitespace headers are sent.

 

you can prevent this by coding so that all logic is executed/all processing done BEFORE you start building the page OR by using output buffering

 

buffering may not be the best option but if you have lots of legacy code it will solve it in the short term.

[robert_gsfame]

okay guys thanx A LOT!!!!!!