the problem is that the php code on the header.php file, lines 1 - 27:
<?php
@session_start();
ini_set('display_errors',1);
error_reporting(E_ALL);
?>
<?php require_once('Connections/connbarter.php'); ?>
<?php require_once( "webassist/security_assist/helper_php.php" ); ?>
<?php
if(isset($_POST["login"])){
$WA_Auth_Parameter = array(
"connection" => $connbarter,
"database" => $database_connbarter,
"tableName" => "site_user",
"columns" => explode($WA_Auth_Separator,"UserName".$WA_Auth_Separator."password"),
"columnValues" => explode($WA_Auth_Separator,"".((isset($_POST["username"]))?$_POST["username"]:"") ."".$WA_Auth_Separator."".((isset($_POST["password"]))?$_POST["password"]:"") .""),
"columnTypes" => explode($WA_Auth_Separator,"text".$WA_Auth_Separator."text"),
"sessionColumns" => explode($WA_Auth_Separator,"UserId".$WA_Auth_Separator."UserName".$WA_Auth_Separator."LevelAccess"),
"sessionNames" => explode($WA_Auth_Separator,"UserId".$WA_Auth_Separator."UserName".$WA_Auth_Separator."LevelAccess"),
"successRedirect" => "memberhome.php",
"failRedirect" => "failed.php",
"gotoPreviousURL" => TRUE,
"keepQueryString" => TRUE
);
WA_AuthenticateUser($WA_Auth_Parameter);
}
?>
needs to come before the doctype tag of the page you are including it in.