Hello again,

I'm putting together some code for a photo sharing site. I'm getting the error "Warning: Cannot modify header information - headers already sent by (output started at path/to/admin/database.php:1)"
I'm getting the error every time I require (or include, I've tried both) the database file. Everything I can find of this error says to remove the white space on the referenced line. The only problem is, there is no white space on this line. So... where does that leave me? The database.php code is down yonder.

PHP Code:

<?php
$db_name = "xxxxx";
$db_server = "localhost";
$db_user = "xxxxx";
$db_pass = "xxxxx";
$mysqli = new mysqli($db_server, $db_user, $db_pass, $db_name) or die(mysqli_error());
?>

The error means you cannot have any output sent before calling the header() function, or session_start(). Which means you cannot have any echo, print or any other code that prints something to the page, or any html code (or evan white spaces and newlines) before the <?php opening tag. It could i.e. be that your query fails and echoes the error message from mysqli_error().

Is there any way it could be the way my server is configured? Because I don't get the error when I run it locally on wamp, but the error appears when I upload it to my server.

maybe the error isn't occuring on the Windows version.