headers not working - NO errors showing

[ttmt]

Hi all

 

I have a simple login system were the correct username password will direct the user to a secure page using a session and headers.

 

<?php
require_once("includes/session.php");
require_once("includes/connection.php");
require_once("includes/functions.php");
?>
<?php
if(isset($_POST['submit'])){
	$errors = array();
	$required_fields = array('username', 'password');
	foreach($required_fields as $fieldname){
		if(!isset($_POST[$fieldname]) || empty($_POST[$fieldname])){
			$errors[] = $fieldname;
		}
	}
	$username = mysql_prep($_POST['username']);
	$password = mysql_prep($_POST['password']);
	if(empty($errors)){
		$query = "SELECT user_id, username FROM users WHERE username = '{$username}' AND hash_password = '{$password}'";
		$result = mysql_query($query);
		confirm_query($result);
		if(mysql_num_rows($result) == 1){
			$found_user = mysql_fetch_array($result);
			$_SESSION['user_id'] = $found_user['user_id'];
			$_SESSION['username'] = $found_user['username'];
			echo "beforeHeader"."<br/>";
			header('Location: imgSelect.php');
			echo "afterHeader";
		}
	}
}else{
	if(isset($_GET['logout']) && $_GET['logout'] == 1){
		$message = "You are now logged out";
	}
	$username = "";
	$password = "";
}
?>

 

The problem is the page doesn't redirect and just stays on the login page. I don't get any error message so I can't work out whats going on.

 

I had this working on an old system but I've just updated to OSX 10.5, I'm using MAMP with PHP 5.1.6. Are there any settings I can change to show any errors

[Mchl]

You can not echo anything before header()

[phpretard]

Make sure nothing is being echo-ed or printed on these pages:

 

require_once("includes/session.php");

require_once("includes/connection.php");

require_once("includes/functions.php");

 

------------------------------------------------------------

 

The problem in the code presented is:

 

echo "beforeHeader"."<br/>"; // NO HTML BEFORE THE HEADER REDIRECT

header('Location: imgSelect.php');